Commit Graph

4190 Commits

Author SHA1 Message Date
Masahiro Yamada
d1b32bacff kbuild: do not include old-kbuild-file from Makefile.headersinst
Now asm-generic wrappers to be exported are all listed in
arch/*/include/uapi/asm/Kbuild.  "make headers_install" no longer
depends on any Kbuild files outside uapi directories.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-07-11 21:33:53 +09:00
Joe Perches
fd71f63268 checkpatch: improve multi-line alignment test
The current test fails to warn about improper alignment with code like

	foo->bar = func(arg1,
				arg2);

because foo->bar is not a single identifier.

Convert the $Ident to $Lval which allows for multiple dereferences.

Link: http://lkml.kernel.org/r/01c35b9b6a12a415e57746d45d589bfaad39952a.1498841563.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-07-10 16:32:35 -07:00
Joe Perches
7fe528a27d checkpatch: improve macro reuse test
checkpatch reports a false positive when using token pasting argument
multiple times in a macro.

Fix it.

Miscellanea:

o Make the $tmp variable name used in the macro argument tests
  a bit more descriptive

Link: http://lkml.kernel.org/r/cf434ae7602838388c7cb49d42bca93ab88527e7.1498483044.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Reported-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-07-10 16:32:35 -07:00
John Brooks
737c076775 checkpatch: change format of --color argument to --color[=WHEN]
The boolean --color argument did not offer the ability to force
colourized output even if stdout is not a terminal.  Change the format
of the argument to the familiar --color[=WHEN] construct as seen in
common Linux utilities such as git, ls and dmesg, which allows the user
to specify whether to colourize output "always", "never", or "auto" when
the output is a terminal.  The default is "auto".

The old command-line uses of --color and --no-color are unchanged.

Link: http://lkml.kernel.org/r/efe43bdbad400f39ba691ae663044462493b0773.1496799721.git.joe@perches.com
Signed-off-by: John Brooks <john@fastquake.com>
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-07-10 16:32:35 -07:00
Cyril Bur
8d81ae05d0 checkpatch: silence perl 5.26.0 unescaped left brace warnings
As of perl 5, version 26, subversion 0 (v5.26.0) some new warnings have
occurred when running checkpatch.

Unescaped left brace in regex is deprecated here (and will be fatal in
Perl 5.30), passed through in regex; marked by <-- HERE in m/^(.\s*){
<-- HERE \s*/ at scripts/checkpatch.pl line 3544.

Unescaped left brace in regex is deprecated here (and will be fatal in
Perl 5.30), passed through in regex; marked by <-- HERE in m/^(.\s*){
<-- HERE \s*/ at scripts/checkpatch.pl line 3885.

Unescaped left brace in regex is deprecated here (and will be fatal in
Perl 5.30), passed through in regex; marked by <-- HERE in
m/^(\+.*(?:do|\))){ <-- HERE / at scripts/checkpatch.pl line 4374.

It seems perfectly reasonable to do as the warning suggests and simply
escape the left brace in these three locations.

Link: http://lkml.kernel.org/r/20170607060135.17384-1-cyrilbur@gmail.com
Signed-off-by: Cyril Bur <cyrilbur@gmail.com>
Acked-by: Joe Perches <joe@perches.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-07-10 16:32:35 -07:00
Joe Perches
a0ad75964e checkpatch: improve tests for multiple line function definitions
Add a block that identifies multiple line function definitions.

Save the function name into $context_function to improve the embedded
function name test.

Look for misplaced open brace on the function definition.
Emit an OPEN_BRACE error when the function definition is similar to

     void foo(int arg1,
              int arg2) {

Miscellanea:

o Remove the $realfile test in function declaration w/o named arguments test
o Comment the function declaration w/o named arguments test

Link: http://lkml.kernel.org/r/de620ed6ebab75fdfa323741ada2134a0f545892.1496835238.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Tested-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-07-10 16:32:35 -07:00
Heinrich Schuchardt
948b133a1b checkpatch: remove false warning for commit reference
Checkpatch warns of an incorrect commit reference style for any
hexadecimal number of 12 digits and more.

Numbers of 12 digits are not necessarily commit ids.

For an example provoking the problem see
  https://patchwork.kernel.org/patch/9170897/

Checkpatch should only warn if the number refers to an existing commit.

Link: http://lkml.kernel.org/r/20170607184008.5869-1-xypron.glpk@gmx.de
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Acked-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-07-10 16:32:35 -07:00
Joe Perches
ca8198640f checkpatch: fix stepping through statements with $stat and ctx_statement_block
Fix the off-by-one in the suppression of lines in a statement block.

This means that for multiple line statements like

	foo(bar,
	    baz,
	    qux);

$stat has been inspected first correctly for the entire statement,
and subsequently incorrectly just for

	    qux);

This fix will help make tracking appropriate indentation a little easier.

Link: http://lkml.kernel.org/r/71b25979c90412133c717084036c9851cd2b7bcb.1496862585.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-07-10 16:32:35 -07:00
Steffen Maier
fe658f94b2 checkpatch: [HLP]LIST_HEAD is also declaration
Fixes the following false warning among others for LLIST_HEAD and
PLIST_HEAD:

    WARNING: Missing a blank line after declarations
    #71: FILE: drivers/s390/scsi/zfcp_fsf.c:422:
    +	struct hlist_node *tmp;
    +	HLIST_HEAD(remove_queue);

Link: http://lkml.kernel.org/r/20170614133512.89425-1-maier@linux.vnet.ibm.com
Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com>
Acked-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-07-10 16:32:35 -07:00
Joe Perches
628f91a286 checkpatch: warn when a MAINTAINERS entry isn't [A-Z]:\t
For consistency, MAINTAINERS entries should be an upper case letter,
then a colon, then a tab, then the value.

Warn when an entry doesn't have this form.  --fix it too.

Link: http://lkml.kernel.org/r/9aaaf03ec10adf3888b5e98dd2176b7fe9b5fad8.1496343345.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-07-10 16:32:35 -07:00
Joe Perches
fb0d0e088e checkpatch: improve the unnecessary OOM message test
Use the context around a patch to avoid missing some candidates.

Link: http://lkml.kernel.org/r/865e874fbae5decc331a849bd8d71c325db6bc80.1496343345.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-07-10 16:32:35 -07:00
Masahiro Yamada
a8ff49a1d9 kbuild: pass dst= to Makefile.headersinst from top Makefile
We can always pass dst= from the top Makefile.  This will simplify
the logic in Makefile.headersinst.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-07-10 03:43:19 +09:00
Masahiro Yamada
87ebb94e28 kbuild: remove useless $(gen) variable in Makefile.headersinst
We have no true case for the $(if $(gen), ...) conditional.  Drop it
to simplify the gendir calculation.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-07-10 03:43:17 +09:00
Linus Torvalds
98ced886dd Kbuild thin archives updates for v4.13
Thin archives migration by Nicholas Piggin.
 
 THIN_ARCHIVES has been available for a while as an optional feature
 only for PowerPC architecture, but we do not need two different
 intermediate-artifact schemes.
 
 Using thin archives instead of conventional incremental linking has
 various advantages:
  - save disk space for builds
  - speed-up building a little
  - fix some link issues (for example, allyesconfig on ARM) due to
    more flexibility for the final linking
  - work better with dead code elimination we are planning
 
 As discussed before, this migration has been done unconditionally
 so that any problems caused by this will show up with "git bisect".
 
 With testing with 0-day and linux-next, some architectures actually
 showed up problems, but they were trivial and all fixed now.
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Merge tag 'kbuild-thinar-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild thin archives updates from Masahiro Yamada:
 "Thin archives migration by Nicholas Piggin.

  THIN_ARCHIVES has been available for a while as an optional feature
  only for PowerPC architecture, but we do not need two different
  intermediate-artifact schemes.

  Using thin archives instead of conventional incremental linking has
  various advantages:

   - save disk space for builds

   - speed-up building a little

   - fix some link issues (for example, allyesconfig on ARM) due to more
     flexibility for the final linking

   - work better with dead code elimination we are planning

  As discussed before, this migration has been done unconditionally so
  that any problems caused by this will show up with "git bisect".

  With testing with 0-day and linux-next, some architectures actually
  showed up problems, but they were trivial and all fixed now"

* tag 'kbuild-thinar-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  tile: remove unneeded extra-y in Makefile
  kbuild: thin archives make default for all archs
  x86/um: thin archives build fix
  tile: thin archives fix linking
  ia64: thin archives fix linking
  sh: thin archives fix linking
  kbuild: handle libs-y archives separately from built-in.o archives
  kbuild: thin archives use P option to ar
  kbuild: thin archives final link close --whole-archives option
  ia64: remove unneeded extra-y in Makefile.gate
  tile: fix dependency and .*.cmd inclusion for incremental build
  sparc64: Use indirect calls in hamming weight stubs
2017-07-07 15:11:12 -07:00
Linus Torvalds
16ffc4c394 Kbuild misc updates for 4.13
- Use more portable shebang for Perl scripts
 
 - Remove trailing spaces from GCC version in kernel log
 
 - Make initramfs generation deterministic
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Merge tag 'kbuild-misc-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull misc Kbuild updates from Masahiro Yamada:

 - Use more portable shebang for Perl scripts

 - Remove trailing spaces from GCC version in kernel log

 - Make initramfs generation deterministic

* tag 'kbuild-misc-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  kbuild: create deterministic initramfs directory listings
  scripts/mkcompile_h: Remove trailing spaces from compiler version
  scripts: Switch to more portable Perl shebang
2017-07-07 15:09:09 -07:00
Linus Torvalds
58f051fc98 Kbuild updates for v4.13
- Clean up Makefiles and scripts
 
 - Improve clang support
 
 - Remove unneeded genhdr-y syntax
 
 - Remove unneeded cc-option-align macro
 
 - Introduce __cc-option macro and use it to fix x86 boot code compiler flags
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Merge tag 'kbuild-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild updates from Masahiro Yamada:

 - Clean up Makefiles and scripts

 - Improve clang support

 - Remove unneeded genhdr-y syntax

 - Remove unneeded cc-option-align macro

 - Introduce __cc-option macro and use it to fix x86 boot code compiler
   flags

* tag 'kbuild-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  kbuild: improve comments on KBUILD_SRC
  x86/build: Specify stack alignment for clang
  x86/build: Use __cc-option for boot code compiler options
  kbuild: Add __cc-option macro
  kbuild: remove cc-option-align
  kbuild: replace genhdr-y with generated-y
  kbuild: clang: Disable 'address-of-packed-member' warning
  kbuild: remove duplicated arch/*/include/generated/uapi include path
  kbuild: speed up checksyscalls.sh
  kbuild: simplify silent build (-s) detection
2017-07-07 14:09:24 -07:00
Linus Torvalds
dd6ec12f3b DeviceTree for 4.13:
- vsprintf format specifier %pOF for device_node's. This will enable us
   to stop storing the full node names. Conversion of users will happen
   next cycle.
 
 - Update documentation to point to DT specification instead of ePAPR.
 
 - Split out graph and property functions to a separate file.
 
 - New of-graph functions for ALSA
 
 - Add vendor prefixes for RISC-V, Linksys, iWave Systems, Roofull,
   Itead, and BananaPi.
 
 - Improve dtx_diff utility filename printing.
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Merge tag 'devicetree-for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull DeviceTree updates from Rob Herring:

 - vsprintf format specifier %pOF for device_node's. This will enable us
   to stop storing the full node names. Conversion of users will happen
   next cycle.

 - Update documentation to point to DT specification instead of ePAPR.

 - Split out graph and property functions to a separate file.

 - New of-graph functions for ALSA

 - Add vendor prefixes for RISC-V, Linksys, iWave Systems, Roofull,
   Itead, and BananaPi.

 - Improve dtx_diff utility filename printing.

* tag 'devicetree-for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (32 commits)
  of: document /sys/firmware/fdt
  dt-bindings: Add RISC-V vendor prefix
  vsprintf: Add %p extension "%pOF" for device tree
  of: find_node_by_full_name rewrite to compare each level
  of: use kbasename instead of open coding
  dt-bindings: thermal: add file extension to brcm,ns-thermal
  of: update ePAPR references to point to Devicetree Specification
  scripts/dtc: dtx_diff - Show real file names in diff header
  of: detect invalid phandle in overlay
  of: be consistent in form of file mode
  of: make __of_attach_node() static
  of: address.c header comment typo
  of: fdt.c header comment typo
  of: make of_fdt_is_compatible() static
  dt-bindings: display-timing.txt convert non-ascii characters to ascii
  Documentation: remove overlay-notes reference to non-existent file
  dt-bindings: usb: exynos-usb: Add missing required VDD properties
  dt-bindings: Add vendor prefix for Linksys
  MAINTAINERS: add device tree ABI documentation file
  of: Add vendor prefix for iWave Systems Technologies Pvt. Ltd
  ...
2017-07-07 10:37:54 -07:00
Colin Ian King
d9f91f844c scripts/spelling.txt: add a bunch more spelling mistakes
Here are some of the more spelling mistakes and typos that I've found
while fixing up spelling mistakes in kernel error message text over the
past several weeks.

Link: http://lkml.kernel.org/r/20170621142614.12529-1-colin.king@canonical.com
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: Joe Perches <joe@perches.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-07-06 16:24:30 -07:00
Rob Landley
595a22acee scripts/gen_initramfs_list.sh: teach INITRAMFS_ROOT_UID and INITRAMFS_ROOT_GID that -1 means "current user".
Teach INITRAMFS_ROOT_UID and INITRAMFS_ROOT_GID that -1 means "current user".

Link: http://lkml.kernel.org/r/2df3a9fb-4378-fa16-679d-99e788926c05@landley.net
Signed-off-by: Rob Landley <rob@landley.net>
Cc: Michal Marek <mmarek@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-07-06 16:24:29 -07:00
Linus Torvalds
59005b0c59 GCC plugin updates:
- typo fix in Kconfig (Jean Delvare)
 - randstruct infrastructure
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Merge tag 'gcc-plugins-v4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull GCC plugin updates from Kees Cook:
 "The big part is the randstruct plugin infrastructure.

  This is the first of two expected pull requests for randstruct since
  there are dependencies in other trees that would be easier to merge
  once those have landed. Notably, the IPC allocation refactoring in
  -mm, and many trivial merge conflicts across several trees when
  applying the __randomize_layout annotation.

  As a result, it seemed like I should send this now since it is
  relatively self-contained, and once the rest of the trees have landed,
  send the annotation patches. I'm expecting the final phase of
  randstruct (automatic struct selection) will land for v4.14, but if
  its other tree dependencies actually make it for v4.13, I can send
  that merge request too.

  Summary:

  - typo fix in Kconfig (Jean Delvare)

  - randstruct infrastructure"

* tag 'gcc-plugins-v4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  ARM: Prepare for randomized task_struct
  randstruct: Whitelist NIU struct page overloading
  randstruct: Whitelist big_key path struct overloading
  randstruct: Whitelist UNIXCB cast
  randstruct: Whitelist struct security_hook_heads cast
  gcc-plugins: Add the randstruct plugin
  Fix English in description of GCC_PLUGIN_STRUCTLEAK
  compiler: Add __designated_init annotation
  gcc-plugins: Detail c-common.h location for GCC 4.6
2017-07-05 11:46:59 -07:00
Kees Cook
d1185a8c5d Merge branch 'merge/randstruct' into for-next/gcc-plugins 2017-07-04 21:41:31 -07:00
Linus Torvalds
650fc870a2 There has been a fair amount of activity in the docs tree this time
around.  Highlights include:
 
  - Conversion of a bunch of security documentation into RST
 
  - The conversion of the remaining DocBook templates by The Amazing
    Mauro Machine.  We can now drop the entire DocBook build chain.
 
  - The usual collection of fixes and minor updates.
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Merge tag 'docs-4.13' of git://git.lwn.net/linux

Pull documentation updates from Jonathan Corbet:
 "There has been a fair amount of activity in the docs tree this time
  around. Highlights include:

   - Conversion of a bunch of security documentation into RST

   - The conversion of the remaining DocBook templates by The Amazing
     Mauro Machine. We can now drop the entire DocBook build chain.

   - The usual collection of fixes and minor updates"

* tag 'docs-4.13' of git://git.lwn.net/linux: (90 commits)
  scripts/kernel-doc: handle DECLARE_HASHTABLE
  Documentation: atomic_ops.txt is core-api/atomic_ops.rst
  Docs: clean up some DocBook loose ends
  Make the main documentation title less Geocities
  Docs: Use kernel-figure in vidioc-g-selection.rst
  Docs: fix table problems in ras.rst
  Docs: Fix breakage with Sphinx 1.5 and upper
  Docs: Include the Latex "ifthen" package
  doc/kokr/howto: Only send regression fixes after -rc1
  docs-rst: fix broken links to dynamic-debug-howto in kernel-parameters
  doc: Document suitability of IBM Verse for kernel development
  Doc: fix a markup error in coding-style.rst
  docs: driver-api: i2c: remove some outdated information
  Documentation: DMA API: fix a typo in a function name
  Docs: Insert missing space to separate link from text
  doc/ko_KR/memory-barriers: Update control-dependencies example
  Documentation, kbuild: fix typo "minimun" -> "minimum"
  docs: Fix some formatting issues in request-key.rst
  doc: ReSTify keys-trusted-encrypted.txt
  doc: ReSTify keys-request-key.txt
  ...
2017-07-03 21:13:25 -07:00
Linus Torvalds
330e9e4625 Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RCU updates from Ingo Molnar:
 "The sole purpose of these changes is to shrink and simplify the RCU
  code base, which has suffered from creeping bloat over the past couple
  of years. The end result is a net removal of ~2700 lines of code:

     79 files changed, 1496 insertions(+), 4211 deletions(-)

  Plus there's a marked reduction in the Kconfig space complexity as
  well, here's the number of matches on 'grep RCU' in the .config:

                               before       after

     x86-defconfig                 17          15
     x86-allmodconfig              33          20"

* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (86 commits)
  rcu: Remove RCU CPU stall warnings from Tiny RCU
  rcu: Remove event tracing from Tiny RCU
  rcu: Move RCU debug Kconfig options to kernel/rcu
  rcu: Move RCU non-debug Kconfig options to kernel/rcu
  rcu: Eliminate NOCBs CPU-state Kconfig options
  rcu: Remove debugfs tracing
  srcu: Remove Classic SRCU
  srcu: Fix rcutorture-statistics typo
  rcu: Remove SPARSE_RCU_POINTER Kconfig option
  rcu: Remove the now-obsolete PROVE_RCU_REPEATEDLY Kconfig option
  rcu: Remove typecheck() from RCU locking wrapper functions
  rcu: Remove #ifdef moving rcu_end_inkernel_boot from rcupdate.h
  rcu: Remove nohz_full full-system-idle state machine
  rcu: Remove the RCU_KTHREAD_PRIO Kconfig option
  rcu: Remove *_SLOW_* Kconfig options
  srcu: Use rnp->lock wrappers to replace explicit memory barriers
  rcu: Move rnp->lock wrappers for SRCU use
  rcu: Convert rnp->lock wrappers to macros for SRCU use
  rcu: Refactor #includes from include/linux/rcupdate.h
  bcm47xx: Fix build regression
  ...
2017-07-03 11:34:53 -07:00
Jakub Kicinski
1cb566ba56 scripts/kernel-doc: handle DECLARE_HASHTABLE
DECLARE_HASHTABLE needs similar handling to DECLARE_BITMAP
because otherwise kernel-doc assumes the member name is the
second, not first macro parameter.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-07-03 06:57:09 -06:00
Bjørn Forsman
9e6e0d5f2a kbuild: create deterministic initramfs directory listings
kbuild runs "find" on each entry in CONFIG_INITRAMFS_SOURCE that is a
directory. The order of the file listing output by "find" matter for
build reproducability, hence this patch applies "sort" to get
deterministic results.

Without this patch, two different machines with identical initramfs
directory input may produce differing initramfs cpio archives (different
hash) due to the different order of the files within the archive.

Signed-off-by: Bjørn Forsman <bjorn.forsman@gmail.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-07-03 08:02:09 +09:00
Nicholas Piggin
3a166fc2d4 kbuild: handle libs-y archives separately from built-in.o archives
The thin archives build currently puts all lib.a and built-in.o
files together and links them with --whole-archive.

This works because thin archives can recursively refer to thin
archives. However some architectures include libgcc.a, which may
not be a thin archive, or it may not be constructed with the "P"
option, in which case its contents do not get linked correctly.

So don't pull .a libs into the root built-in.o archive. These
libs should already have symbol tables and indexes built, so they
can be direct linker inputs. Move them out of the --whole-archive
option, which restore the conditional linking behaviour of lib.a
to thin archives builds.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-06-30 09:03:03 +09:00
Nicholas Piggin
9a6cfca4f4 kbuild: thin archives use P option to ar
The P option makes ar do full path name matching and can prevent ar
from discarding files with duplicate names in some cases of creating
thin archives from thin archives. The sh architecture in particular
loses some object files from its kernel/cpu/sh*/ directories without
this option.

This could be a bug in binutils ar, but the P option should not cause
any negative effects so it is safe to use to work around this with.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-06-30 09:03:03 +09:00
Nicholas Piggin
1328a1ae0e kbuild: thin archives final link close --whole-archives option
Close the --whole-archives option with --no-whole-archive. Some
architectures end up including additional .o and files multiple
times after this, and they get duplicate symbols when they are
brought under the --whole-archives option.

This matches more closely with the incremental final link.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-06-30 09:03:02 +09:00
Pantelis Antoniou
ce4fecf1fe vsprintf: Add %p extension "%pOF" for device tree
90% of the usage of device node's full_name is printing it out in a
kernel message. However, storing the full path for every node is
wasteful and redundant. With a custom format specifier, we can generate
the full path at run-time and eventually remove the full path from every
node.

For instance typical use is:
	pr_info("Frobbing node %s\n", node->full_name);

Which can be written now as:
	pr_info("Frobbing node %pOF\n", node);

'%pO' is the base specifier to represent kobjects with '%pOF'
representing struct device_node. Currently, struct device_node is the
only supported type of kobject.

More fine-grained control of formatting includes printing the name,
flags, path-spec name and others, explained in the documentation entry.

Originally written by Pantelis, but pretty much rewrote the core
function using existing string/number functions. The 2 passes were
unnecessary and have been removed. Also, updated the checkpatch.pl
check. The unittest code was written by Grant Likely.

Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Acked-by: Joe Perches <joe@perches.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2017-06-27 12:36:40 -05:00
Matthias Kaehlcke
9f3f1fd299 kbuild: Add __cc-option macro
cc-option uses KBUILD_CFLAGS and KBUILD_CPPFLAGS when it determines
whether an option is supported or not. This is fine for options used to
build the kernel itself, however some components like the x86 boot code
use a different set of flags.

Add the new macro __cc-option which is a more generic version of
cc-option with additional parameters. One parameter is the compiler
with which the check should be performed, the other the compiler options
to be used instead KBUILD_C*FLAGS.

Refactor cc-option and hostcc-option to use __cc-option and move
hostcc-option to scripts/Kbuild.include.

Suggested-by: Arnd Bergmann <arnd@arndb.de>
Suggested-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Michal Marek <mmarek@suse.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-06-25 12:47:55 +09:00
Masahiro Yamada
39a33ff80a kbuild: remove cc-option-align
Documentation/kbuild/makefiles.txt says the change for align options
occurred at GCC 3.0, and Documentation/process/changes.rst says the
minimal supported GCC version is 3.2, so it should be safe to hard-code
-falign* options.

Fix the only user arch/x86/Makefile_32.cpu and remove cc-option-align.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
2017-06-25 12:43:00 +09:00
Linus Torvalds
bb9b8fd26b Kbuild fixes for v4.12 (2nd)
- fix warnings of host programs
 
 - fix "make tags" when COMPILE_SOURCE=1 is specified along with O=
 
 - clarify help message of C=1 option
 
 - fix dependency for ncurses compatibility check
 
 - fix "make headers_install" for fakechroot environment
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Merge tag 'kbuild-fixes-v4.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild fixes from Masahiro Yamada:
 "Nothing scary, just some random fixes:

   - fix warnings of host programs

   - fix "make tags" when COMPILED_SOURCE=1 is specified along with O=

   - clarify help message of C=1 option

   - fix dependency for ncurses compatibility check

   - fix "make headers_install" for fakechroot environment"

* tag 'kbuild-fixes-v4.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  kconfig: fix sparse warnings in nconfig
  kbuild: fix header installation under fakechroot environment
  kconfig: Check for libncurses before menuconfig
  Kbuild: tiny correction on `make help`
  tags: honor COMPILED_SOURCE with apart output directory
  genksyms: add printf format attribute to error_with_pos()
2017-06-24 16:18:00 -07:00
Jonathan Corbet
52b3f239bb Docs: clean up some DocBook loose ends
There were a few bits and pieces left over from the now-disused DocBook
toolchain; git rid of them.

Reported-by: Markus Heiser <markus.heiser@darmarit.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-06-23 14:17:38 -06:00
Kees Cook
1854c19cae randstruct: Whitelist NIU struct page overloading
The NIU ethernet driver intentionally stores a page struct pointer on
top of the "mapping" field. Whitelist this case:

drivers/net/ethernet/sun/niu.c: In function ‘niu_rx_pkt_ignore’:
drivers/net/ethernet/sun/niu.c:3402:10: note: found mismatched ssa struct pointer types: ‘struct page’ and ‘struct address_space’

    *link = (struct page *) page->mapping;
    ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Kees Cook <keescook@chromium.org>
2017-06-22 16:21:43 -07:00
Kees Cook
802762cdff randstruct: Whitelist big_key path struct overloading
The big_key payload structure intentionally stores a struct path in
two void pointers to avoid header soup. Whitelist this case:

security/keys/big_key.c: In function ‘big_key_read’:
security/keys/big_key.c:293:16: note: found mismatched rhs struct pointer types: ‘struct path’ and ‘void *’

   struct path *path = (struct path *)&key->payload.data[big_key_path];
                ^~~~

Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
2017-06-22 16:21:42 -07:00
Kees Cook
b07b65846b randstruct: Whitelist UNIXCB cast
This is another false positive in bad cast detection:

net/unix/af_unix.c: In function ‘unix_skb_scm_eq’:
net/unix/af_unix.c:1621:31: note: found mismatched rhs struct pointer types: ‘struct unix_skb_parms’ and ‘char’

  const struct unix_skb_parms *u = &UNIXCB(skb);
                               ^

UNIXCB is:

	#define UNIXCB(skb)     (*(struct unix_skb_parms *)&((skb)->cb))

And ->cb is:

	char                    cb[48] __aligned(8);

This is a rather crazy cast, but appears to be safe in the face of
randomization, so whitelist it in the plugin.

Cc: Hannes Frederic Sowa <hannes@stressinduktion.org>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Kees Cook <keescook@chromium.org>
2017-06-22 16:21:41 -07:00
Kees Cook
fd466e068e randstruct: Whitelist struct security_hook_heads cast
The LSM initialization routines walk security_hook_heads as an array
of struct list_head instead of via names to avoid a ton of needless
source. Whitelist this to avoid the false positive warning from the
plugin:

security/security.c: In function ‘security_init’:
security/security.c:59:20: note: found mismatched op0 struct pointer types: ‘struct list_head’ and ‘struct security_hook_heads’

  struct list_head *list = (struct list_head *) &security_hook_heads;
                    ^

Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: James Morris <james.l.morris@oracle.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
2017-06-22 16:21:40 -07:00
Kees Cook
313dd1b629 gcc-plugins: Add the randstruct plugin
This randstruct plugin is modified from Brad Spengler/PaX Team's code
in the last public patch of grsecurity/PaX based on my understanding
of the code. Changes or omissions from the original code are mine and
don't reflect the original grsecurity/PaX code.

The randstruct GCC plugin randomizes the layout of selected structures
at compile time, as a probabilistic defense against attacks that need to
know the layout of structures within the kernel. This is most useful for
"in-house" kernel builds where neither the randomization seed nor other
build artifacts are made available to an attacker. While less useful for
distribution kernels (where the randomization seed must be exposed for
third party kernel module builds), it still has some value there since now
all kernel builds would need to be tracked by an attacker.

In more performance sensitive scenarios, GCC_PLUGIN_RANDSTRUCT_PERFORMANCE
can be selected to make a best effort to restrict randomization to
cacheline-sized groups of elements, and will not randomize bitfields. This
comes at the cost of reduced randomization.

Two annotations are defined,__randomize_layout and __no_randomize_layout,
which respectively tell the plugin to either randomize or not to
randomize instances of the struct in question. Follow-on patches enable
the auto-detection logic for selecting structures for randomization
that contain only function pointers. It is disabled here to assist with
bisection.

Since any randomized structs must be initialized using designated
initializers, __randomize_layout includes the __designated_init annotation
even when the plugin is disabled so that all builds will require
the needed initialization. (With the plugin enabled, annotations for
automatically chosen structures are marked as well.)

The main differences between this implemenation and grsecurity are:
- disable automatic struct selection (to be enabled in follow-up patch)
- add designated_init attribute at runtime and for manual marking
- clarify debugging output to differentiate bad cast warnings
- add whitelisting infrastructure
- support gcc 7's DECL_ALIGN and DECL_MODE changes (Laura Abbott)
- raise minimum required GCC version to 4.7

Earlier versions of this patch series were ported by Michael Leibowitz.

Signed-off-by: Kees Cook <keescook@chromium.org>
2017-06-22 16:15:45 -07:00
Randy Dunlap
ad81810607 kconfig: fix sparse warnings in nconfig
Fix sparse warnings in scripts/kconfig/nconf* ('make nconfig'):

../scripts/kconfig/nconf.c:1071:32: warning: Using plain integer as NULL pointer
../scripts/kconfig/nconf.c:1238:30: warning: Using plain integer as NULL pointer
../scripts/kconfig/nconf.c:511:51: warning: Using plain integer as NULL pointer
../scripts/kconfig/nconf.c:1460:6: warning: symbol 'setup_windows' was not declared. Should it be static?
../scripts/kconfig/nconf.c:274:12: warning: symbol 'current_instructions' was not declared. Should it be static?
../scripts/kconfig/nconf.c:308:22: warning: symbol 'function_keys' was not declared. Should it be static?
../scripts/kconfig/nconf.gui.c:132:17: warning: non-ANSI function declaration of function 'set_colors'
../scripts/kconfig/nconf.gui.c:195:24: warning: Using plain integer as NULL pointer

nconf.gui.o before/after files are the same.
nconf.o before/after files are the same until the 'static' function
declarations are added.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-06-23 06:00:52 +09:00
Geert Uytterhoeven
7782b14446 scripts/dtc: dtx_diff - Show real file names in diff header
As the comparison uses process substitution to pass files after
conversion to DTS format, the diff header doesn't show the real
filenames, but the names of the file descriptors used:

    --- /dev/fd/63  2017-06-22 11:21:47.531637188 +0200
    +++ /dev/fd/62  2017-06-22 11:21:47.531637188 +0200

This is especially annoying when comparing a bunch of DT files in a
loop, as the output doesn't show a clue about which files it refers to.

Fix this by explicitly passing the original file names to the diff
command using the --label option, giving e.g.:

    --- arch/arm/boot/dts/r8a7791-koelsch.dtb
    +++ arch/arm/boot/dts/r8a7791-porter.dtb

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Frank Rowand <frank.rowand@sony.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2017-06-22 11:20:30 -05:00
Masahiro Yamada
ae3f415173 kbuild: replace genhdr-y with generated-y
Originally, generated-y and genhdr-y had different meaning, like
follows:

- generated-y: generated headers (other than asm-generic wrappers)
- header-y   : headers to be exported
- genhdr-y   : generated headers to be exported (generated-y + header-y)

Since commit fcc8487d47 ("uapi: export all headers under uapi
directories"), headers under UAPI directories are all exported.
So, there is no more difference between generated-y and genhdr-y.

We see two users of genhdr-y, arch/{arm,x86}/include/uapi/asm/Kbuild.
They generate some headers in arch/{arm,x86}/include/generated/uapi/asm
directories, which are obviously exported.

Replace them with generated-y, and abolish genhdr-y.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
2017-06-22 08:55:21 +09:00
Richard Genoud
2f263d1451 kbuild: fix header installation under fakechroot environment
Since commit fcc8487d47 ("uapi: export all headers under uapi
directories") fakechroot make bindeb-pkg fails, mismatching files for
directories:
touch: cannot touch 'usr/include/video/uvesafb.h/.install': Not a
directory

This due to a bug in fakechroot:
when using the function $(wildcard $(srcdir)/*/.) in a makefile, under a
fakechroot environment, not only directories but also files are
returned.

To circumvent that, we are using the functions:
$(sort $(dir $(wildcard $(srcdir)/*/))))

Fixes: fcc8487d47 ("uapi: export all headers under uapi directories")
Signed-off-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-06-22 08:34:34 +09:00
Jonathan Liu
adcc3f7cee scripts/mkcompile_h: Remove trailing spaces from compiler version
Improves the output of "cat /proc/version" by getting rid of the
trailing space at the end of the compiler version when the kernel
is compiled using GCC.

Signed-off-by: Jonathan Liu <net147@gmail.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-06-19 22:48:15 +09:00
Borislav Petkov
ff85a1a80e kconfig: Check for libncurses before menuconfig
There is a check and a nice user-friendly message when the curses
library is not present on the system and the user wants to do "make
menuconfig". It doesn't get issued, though. Instead, we fail the build
when mconf.c doesn't find the curses.h header:

    HOSTCC  scripts/kconfig/mconf.o
  In file included from scripts/kconfig/mconf.c:23:0:
  scripts/kconfig/lxdialog/dialog.h:38:20: fatal error: curses.h: No such file or directory
   #include CURSES_LOC
                      ^
  compilation terminated.

Make that check a prerequisite to mconf so that the user sees the error
message instead:

  $ make menuconfig
   *** Unable to find the ncurses libraries or the
   *** required header files.
   *** 'make menuconfig' requires the ncurses libraries.
   ***
   *** Install ncurses (ncurses-devel) and try again.
   ***
  scripts/kconfig/Makefile:203: recipe for target 'scripts/kconfig/dochecklxdialog' failed
  make[1]: *** [scripts/kconfig/dochecklxdialog] Error 1
  Makefile:548: recipe for target 'menuconfig' failed
  make: *** [menuconfig] Error 2

Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-06-10 01:27:49 +09:00
Arnd Bergmann
d21832e212 kbuild: speed up checksyscalls.sh
checksyscalls.sh is run at every "make" run while building the kernel,
even if no files have changed. I looked at where we spend time in
a trivial empty rebuild and found checksyscalls.sh to be a source
of noticeable overhead, as it spawns a lot of child processes just
to call 'cat' copying from stdin to stdout, once for each of the
over 400 x86 syscalls.

Using a shell-builtin (echo) instead of the external command gives
us a 13x speedup:

    Before		   After
real	0m1.018s       real	0m0.077s
user	0m0.068s       user	0m0.048s
sys	0m0.156s       sys	0m0.024s

The time it took to rebuild a single file on my machine dropped
from 5.5 seconds to 4.5 seconds.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-06-10 01:15:36 +09:00
Paul E. McKenney
9895313534 checkpatch: Remove checks for expedited grace periods
There was a time when the expedited grace-period primitives
(synchronize_rcu_expedited(), synchronize_rcu_bh_expedited(), and
synchronize_sched_expedited()) used rather antisocial kernel
facilities like try_stop_cpus().  However, they have since been
housebroken to use only single-CPU IPIs, and typically cause less
disturbance than a scheduling-clock interrupt.  Furthermore, this
disturbance can be eliminated entirely using NO_HZ_FULL on the
one hand or the rcupdate.rcu_normal boot parameter on the other.

This commit therefore removes checkpatch's complaints about use
of the expedited RCU primitives.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2017-06-08 08:25:27 -07:00
Robert Jarzmik
cbf52a3e6a tags: honor COMPILED_SOURCE with apart output directory
When the kernel is compiled with an "O=" argument, the object files are
not in the source tree, but in the build tree.

This patch fixes O= build by looking for object files in the build tree.

Fixes: 923e02ecf3 ("scripts/tags.sh: Support compiled source")
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-06-06 08:42:34 +09:00
Nicolas Iooss
3def03441e genksyms: add printf format attribute to error_with_pos()
When compiling with -Wsuggest-attribute=format in HOSTCFLAGS, gcc
complains that error_with_pos() may be declared with a printf format
attribute:

    scripts/genksyms/genksyms.c:726:3: warning: function might be
    possible candidate for ‘gnu_printf’ format attribute
    [-Wsuggest-attribute=format]
       vfprintf(stderr, fmt, args);
       ^~~~~~~~

This would allow catching printf-format errors at compile time in
callers to error_with_pos(). Add this attribute.

Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-06-06 01:22:48 +09:00
André Draszik
d6c9708737 scripts/gdb: make lx-dmesg command work (reliably)
lx-dmesg needs access to the log_buf symbol from printk.c.
Unfortunately, the symbol log_buf also exists in BPF's verifier.c and
hence gdb can pick one or the other.  If it happens to pick BPF's
log_buf, lx-dmesg doesn't work:

  (gdb) lx-dmesg
  Python Exception <class 'gdb.MemoryError'> Cannot access memory at address 0x0:
  Error occurred in Python command: Cannot access memory at address 0x0
  (gdb) p log_buf
  $15 = 0x0

Luckily, GDB has a way to deal with this, see
  https://sourceware.org/gdb/onlinedocs/gdb/Symbols.html

  (gdb) info variables ^log_buf$
  All variables matching regular expression "^log_buf$":

  File <linux.git>/kernel/bpf/verifier.c:
  static char *log_buf;

  File <linux.git>/kernel/printk/printk.c:
  static char *log_buf;
  (gdb) p 'verifier.c'::log_buf
  $1 = 0x0
  (gdb) p 'printk.c'::log_buf
  $2 = 0x811a6aa0 <__log_buf> ""
  (gdb) p &log_buf
  $3 = (char **) 0x8120fe40 <log_buf>
  (gdb) p &'verifier.c'::log_buf
  $4 = (char **) 0x8120fe40 <log_buf>
  (gdb) p &'printk.c'::log_buf
  $5 = (char **) 0x8048b7d0 <log_buf>

By being explicit about the location of the symbol, we can make lx-dmesg
work again.  While at it, do the same for the other symbols we need from
printk.c

Link: http://lkml.kernel.org/r/20170526112222.3414-1-git@andred.net
Signed-off-by: André Draszik <git@andred.net>
Tested-by: Kieran Bingham <kieran@bingham.xyz>
Acked-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-06-02 15:07:38 -07:00
Kees Cook
1132e1e448 gcc-plugins: Detail c-common.h location for GCC 4.6
The c-common.h file moved in stock gcc 4.7, not gcc 4.6. However, most
people building plugins with gcc 4.6 are using the Debian or Ubuntu
version, which includes a patch to move the headers to the 4.7 location.
In case anyone trips over this with a stock gcc 4.6, add a pointer to the
patch used by Debian/Ubuntu.

Signed-off-by: Kees Cook <keescook@chromium.org>
2017-05-28 10:23:02 -07:00
Kees Cook
3e2e857f9c module: Add module name to modinfo
Accessing the mod structure (e.g. for mod->name) prior to having completed
check_modstruct_version() can result in writing garbage to the error logs
if the layout of the mod structure loaded from disk doesn't match the
running kernel's mod structure layout. This kind of mismatch will become
much more likely if a kernel is built with different randomization seed
for the struct layout randomization plugin.

Instead, add and use a new modinfo string for logging the module name.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Jessica Yu <jeyu@redhat.com>
2017-05-23 14:08:31 -07:00
Linus Torvalds
1fbbed4137 DeviceTree fixes for 4.12-rc:
- Fix missing allocation failure handling in fdt code
 
 - Fix dtc compile error on 32-bit hosts
 
 - Revert bad sparse changes causing GCC7 warnings
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Merge tag 'devicetree-fixes-for-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull DeviceTree fixes from Rob Herring:

 - fix missing allocation failure handling in fdt code

 - fix dtc compile error on 32-bit hosts

 - revert bad sparse changes causing GCC7 warnings

* tag 'devicetree-fixes-for-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  of: fdt: add missing allocation-failure check
  dtc: check.c fix compile error
  Partially Revert "of: fix sparse warnings in fdt, irq, reserved mem, and resolver code"
2017-05-19 15:03:24 -07:00
Linus Torvalds
f538a82c07 ARM: SoC fixes (and a cross-arch dt-include fix)
We had a small batch of fixes before -rc1, but here is a larger one. It
 contains a backmerge of 4.12-rc1 since some of the downstream branches we
 merge had that as base; at the same time we already had merged contents
 before -rc1 and rebase wasn't the right solution.
 
 A mix of random smaller fixes and a few things worth pointing out:
 
  - We've started telling people to avoid cross-tree shared branches if all
    they're doing is picking up one or two DT-used constants from a
    shared include file, and instead to use the numeric values on first
    submission. Follow-up moving over to symbolic names are sent in right
    after -rc1, i.e. here. It's only a few minor patches of this type.
 
  - Linus Walleij and others are resurrecting the 'Gemini' platform, and
    wanted a cut-down platform-specific defconfig for it. So I picked that
    up for them.
 
  - Rob Herring ran 'savedefconfig' on arm64, it's a bit churny but it helps
    people to prepare patches since it's a pain when defconfig and current
    savedefconfig contents differs too much.
 
  - Devicetree additions for some pinctrl drivers for Armada that were
    merged this window. I'd have preferred to see those earlier but it's not
    a huge deail.
 
 The biggest change worth pointing out though since it's touching other
 parts of the tree: We added prefixes to be used when cross-including
 DT contents between arm64 and arm, allowing someone to #include
 <arm/foo.dtsi> from arm64, and likewise. As part of that, we needed
 arm/foo.dtsi to work on arm as well. The way I suggested this to Heiko
 resulted in a recursive symlink.
 
 Instead, I've now moved it out of arch/*/boot/dts/include, into a shared
 location under scripts/dtc. While I was at it, I consolidated so all
 architectures now behave the same way in this manner.
 
 Rob Herring (DT maintainer) has acked it. I cc:d most other arch
 maintainers but nobody seems to care much; it doesn't really affect them
 since functionality is unchanged for them by default.
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "We had a small batch of fixes before -rc1, but here is a larger one.
  It contains a backmerge of 4.12-rc1 since some of the downstream
  branches we merge had that as base; at the same time we already had
  merged contents before -rc1 and rebase wasn't the right solution.

  A mix of random smaller fixes and a few things worth pointing out:

   - We've started telling people to avoid cross-tree shared branches if
     all they're doing is picking up one or two DT-used constants from a
     shared include file, and instead to use the numeric values on first
     submission. Follow-up moving over to symbolic names are sent in
     right after -rc1, i.e. here. It's only a few minor patches of this
     type.

   - Linus Walleij and others are resurrecting the 'Gemini' platform,
     and wanted a cut-down platform-specific defconfig for it. So I
     picked that up for them.

   - Rob Herring ran 'savedefconfig' on arm64, it's a bit churny but it
     helps people to prepare patches since it's a pain when defconfig
     and current savedefconfig contents differs too much.

   - Devicetree additions for some pinctrl drivers for Armada that were
     merged this window. I'd have preferred to see those earlier but
     it's not a huge deail.

  The biggest change worth pointing out though since it's touching other
  parts of the tree: We added prefixes to be used when cross-including
  DT contents between arm64 and arm, allowing someone to #include
  <arm/foo.dtsi> from arm64, and likewise. As part of that, we needed
  arm/foo.dtsi to work on arm as well. The way I suggested this to Heiko
  resulted in a recursive symlink.

  Instead, I've now moved it out of arch/*/boot/dts/include, into a
  shared location under scripts/dtc. While I was at it, I consolidated
  so all architectures now behave the same way in this manner.

  Rob Herring (DT maintainer) has acked it. I cc:d most other arch
  maintainers but nobody seems to care much; it doesn't really affect
  them since functionality is unchanged for them by default"

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (29 commits)
  arm64: dts: rockchip: fix include reference
  firmware: ti_sci: fix strncat length check
  ARM: remove duplicate 'const' annotations'
  arm64: defconfig: enable options needed for QCom DB410c board
  arm64: defconfig: sync with savedefconfig
  ARM: configs: add a gemini defconfig
  devicetree: Move include prefixes from arch to separate directory
  ARM: dts: dra7: Reduce cpu thermal shutdown temperature
  memory: omap-gpmc: Fix debug output for access width
  ARM: dts: LogicPD Torpedo: Fix camera pin mux
  ARM: dts: omap4: enable CEC pin for Pandaboard A4 and ES
  ARM: dts: gta04: fix polarity of clocks for mcbsp4
  ARM: dts: dra7: Add power hold and power controller properties to palmas
  soc: imx: add PM dependency for IMX7_PM_DOMAINS
  ARM: dts: imx6sx-sdb: Remove OPP override
  ARM: dts: imx53-qsrb: Pulldown PMIC IRQ pin
  soc: bcm: brcmstb: Correctly match 7435 SoC
  tee: add ARM_SMCCC dependency
  ARM: omap2+: make omap4_get_cpu1_ns_pa_addr declaration usable
  ARM64: dts: mediatek: configure some fixed mmc parameters
  ...
2017-05-19 13:36:56 -07:00
Olof Johansson
d5d332d3f7 devicetree: Move include prefixes from arch to separate directory
We use a directory under arch/$ARCH/boot/dts as an include path
that has links outside of the subtree to find dt-bindings from under
include/dt-bindings. That's been working well, but new DT architectures
haven't been adding them by default.

Recently there's been a desire to share some of the DT material between
arm and arm64, which originally caused developers to create symlinks or
relative includes between the subtrees. This isn't ideal -- it breaks
if the DT files aren't stored in the exact same hierarchy as the kernel
tree, and generally it's just icky.

As a somewhat cleaner solution we decided to add a $ARCH/ prefix link
once, and allow DTS files to reference dtsi (and dts) files in other
architectures that way.

Original approach was to create these links under each architecture,
but it lead to the problem of recursive symlinks.

As a remedy, move the include link directories out of the architecture
trees into a common location. At the same time, they can now share one
directory and one dt-bindings/ link as well.

Fixes: 4027494ae6 ('ARM: dts: add arm/arm64 include symlinks')
Reported-by: Russell King <linux@armlinux.org.uk>
Reported-by: Omar Sandoval <osandov@osandov.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Rob Herring <robh@kernel.org>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Frank Rowand <frowand.list@gmail.com>
Cc: linux-arch <linux-arch@vger.kernel.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2017-05-18 23:55:48 -07:00
Jonathan Corbet
6312811be2 Merge remote-tracking branch 'mauro-exp/docbook3' into death-to-docbook
Mauro says:

This patch series convert the remaining DocBooks to ReST.

The first version was originally
send as 3 patch series:

   [PATCH 00/36] Convert DocBook documents to ReST
   [PATCH 0/5] Convert more books to ReST
   [PATCH 00/13] Get rid of DocBook

The lsm book was added as if it were a text file under
Documentation. The plan is to merge it with another file
under Documentation/security, after both this series and
a security Documentation patch series gets merged.

It also adjusts some Sphinx-pedantic errors/warnings on
some kernel-doc markups.

I also added some patches here to add PDF output for all
existing ReST books.
2017-05-18 11:03:08 -06:00
Kees Cook
229fd05c56 doc: ReSTify SELinux.txt
Adjusts for ReST markup and moves under LSM admin guide.

Cc: Paul Moore <paul@paul-moore.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-05-18 10:31:30 -06:00
Masahiro Yamada
05d8cba4a1 kbuild: skip install/check of headers right under uapi directories
Since commit 61562f981e ("uapi: export all arch specifics
directories"), "make INSTALL_HDR_PATH=$root/usr headers_install"
deletes standard glibc headers and others in $(root)/usr/include.

The cause of the issue is that headers_install now starts descending
from arch/$(hdr-arch)/include/uapi with $(root)/usr/include for its
destination when installing asm headers.  So, headers already there
are assumed to be unwanted.

When headers_install starts descending from include/uapi with
$(root)/usr/include for its destination, it works around the problem
by creating an dummy destination $(root)/usr/include/uapi, but this
is tricky.

To fix the problem in a clean way is to skip headers install/check
in include/uapi and arch/$(hdr-arch)/include/uapi because we know
there are only sub-directories in uapi directories.  A good side
effect is the empty destination $(root)/usr/include/uapi will go
away.

I am also removing the trailing slash in the headers_check target to
skip checking in arch/$(hdr-arch)/include/uapi.

Fixes: 61562f981e ("uapi: export all arch specifics directories")
Reported-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Tested-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
2017-05-18 02:17:45 +09:00
Shuah Khan
828d4cdd01 dtc: check.c fix compile error
Fix the following compile error found on odroid-xu4:

checks.c: In function ‘check_simple_bus_reg’:
checks.c:876:41: error: format ‘%lx’ expects argument of type
‘long unsigned int’, but argument 4 has type
‘uint64_t{aka long long unsigned int}’ [-Werror=format=]
  snprintf(unit_addr, sizeof(unit_addr), "%lx", reg);
                                         ^
checks.c:876:41: error: format ‘%lx’ expects argument of type
‘long unsigned int’, but argument 4 has type
‘uint64_t {aka long long unsigned int}’ [-Werror=format=]
cc1: all warnings being treated as errors
Makefile:304: recipe for target 'checks.o' failed
make: *** [checks.o] Error 1

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
[dwg: Correct new format to be correct in general]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
[robh: cherry-picked from upstream dtc commit 2a42b14d0d03]
Signed-off-by: Rob Herring <robh@kernel.org>
2017-05-17 11:12:32 -05:00
Mauro Carvalho Chehab
cb43fb5775 docs: remove DocBook from the building system
Now that we don't have any DocBook anymore, remove it from
the building system.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-05-16 08:44:19 -03:00
Kamil Rytarowski
cb77f0d623 scripts: Switch to more portable Perl shebang
The default NetBSD package manager is pkgsrc and it installs Perl
along other third party programs under custom and configurable prefix.
The default prefix for binary prebuilt packages is /usr/pkg, and the
Perl executable lands in /usr/pkg/bin/perl.

This change switches "/usr/bin/perl" to "/usr/bin/env perl" as it's
the most portable solution that should work for almost everybody.
Perl's executable is detected automatically.

This change switches -w option passed to the executable with more
modern "use warnings;" approach. There is no functional change to the
default behavior.

While there, drop "require 5" from scripts/namespace.pl (Perl from 1994?).

Signed-off-by: Kamil Rytarowski <n54@gmx.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-05-14 11:20:44 +09:00
Linus Torvalds
791a9a666d Kbuild UAPI header export updates for v4.12
Improvement of headers_install by Nicolas Dichtel.
 
 It has been long since the introduction of uapi directories,
 but the de-coupling of exported headers has not been completed.
 Headers listed in header-y are exported whether they exist in
 uapi directories or not.  His work fixes this inconsistency.
 
 All (and only) headers under uapi directories are now exported.
 The asm-generic wrappers are still exceptions, but this is a big
 step forward.
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Merge tag 'kbuild-uapi-v4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild UAPI updates from Masahiro Yamada:
 "Improvement of headers_install by Nicolas Dichtel.

  It has been long since the introduction of uapi directories, but the
  de-coupling of exported headers has not been completed. Headers listed
  in header-y are exported whether they exist in uapi directories or
  not. His work fixes this inconsistency.

  All (and only) headers under uapi directories are now exported. The
  asm-generic wrappers are still exceptions, but this is a big step
  forward"

* tag 'kbuild-uapi-v4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  arch/include: remove empty Kbuild files
  uapi: export all arch specifics directories
  uapi: export all headers under uapi directories
  smc_diag.h: fix include from userland
  btrfs_tree.h: fix include from userland
  uapi: includes linux/types.h before exporting files
  Makefile.headersinst: remove destination-y option
  Makefile.headersinst: cleanup input files
  x86: stop exporting msr-index.h to userland
  nios2: put setup.h in uapi
  h8300: put bitsperlong.h in uapi
2017-05-10 20:45:36 -07:00
Linus Torvalds
23ea3f62f3 Kbuild misc updates for 4.12
- Clean up builddeb script
 
 - Use full path for KBUILD_IMAGE to fix rpm-pkg build
 
 - Fix objdiff tool to ignore debug info
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Merge tag 'kbuild-misc-v4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull misc Kbuild updates from Masahiro Yamada:

 - clean up builddeb script

 - use full path for KBUILD_IMAGE to fix rpm-pkg build

 - fix objdiff tool to ignore debug info

* tag 'kbuild-misc-v4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  builddeb: fix typo
  builddeb: Update a few outdated and hardcoded strings
  deb-pkg: Remove the KBUILD_IMAGE workaround
  unicore32: Use full path in KBUILD_IMAGE definition
  sh: Use full path in KBUILD_IMAGE definition
  arc: Use full path in KBUILD_IMAGE definition
  arm: Use full path in KBUILD_IMAGE definition
  arm64: Use full path in KBUILD_IMAGE definition
  scripts: objdiff: Ignore debug info when comparing
2017-05-10 20:41:43 -07:00
Linus Torvalds
593043d35d Kbuild updates for v4.12
- Improve Clang support
 
 - Clean up various Makefiles
 
 - Improve build log visibility (objtool, alpha, ia64)
 
 - Improve compiler flag evaluation for better build performance
 
 - Fix GCC version-dependent warning
 
 - Fix genksyms
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Merge tag 'kbuild-v4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild updates from Masahiro Yamada:

 - improve Clang support

 - clean up various Makefiles

 - improve build log visibility (objtool, alpha, ia64)

 - improve compiler flag evaluation for better build performance

 - fix GCC version-dependent warning

 - fix genksyms

* tag 'kbuild-v4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (23 commits)
  kbuild: dtbinst: remove unnecessary __dtbs_install_prep target
  ia64: beatify build log for gate.so and gate-syms.o
  alpha: make short build log available for division routines
  alpha: merge build rules of division routines
  alpha: add $(src)/ rather than $(obj)/ to make source file path
  Makefile: evaluate LDFLAGS_BUILD_ID only once
  objtool: make it visible in make V=1 output
  kbuild: clang: add -no-integrated-as to KBUILD_[AC]FLAGS
  kbuild: Add support to generate LLVM assembly files
  kbuild: Add better clang cross build support
  kbuild: drop -Wno-unknown-warning-option from clang options
  kbuild: fix asm-offset generation to work with clang
  kbuild: consolidate redundant sed script ASM offset generation
  frv: Use OFFSET macro in DEF_*REG()
  kbuild: avoid conflict between -ffunction-sections and -pg on gcc-4.7
  kbuild: Consolidate header generation from ASM offset information
  kbuild: use -Oz instead of -Os when using clang
  kbuild, LLVMLinux: Add -Werror to cc-option to support clang
  Kbuild: make designated_init attribute fatal
  kbuild: drop unneeded patterns '.*.orig' and '.*.rej' from distclean
  ...
2017-05-10 20:11:05 -07:00
Nicolas Dichtel
61562f981e uapi: export all arch specifics directories
This patch removes the need of subdir-y. Now all files/directories under
arch/<arch>/include/uapi/ are exported.

The only change for userland is the layout of the command 'make
headers_install_all': directories asm-<arch> are replaced by arch-<arch>/.
Those new directories contains all files/directories of the specified arch.

Note that only cris and tile have more directories than only asm:
 - arch-v[10|32] for cris;
 - arch for tile.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-05-11 00:22:17 +09:00
Nicolas Dichtel
fcc8487d47 uapi: export all headers under uapi directories
Regularly, when a new header is created in include/uapi/, the developer
forgets to add it in the corresponding Kbuild file. This error is usually
detected after the release is out.

In fact, all headers under uapi directories should be exported, thus it's
useless to have an exhaustive list.

After this patch, the following files, which were not exported, are now
exported (with make headers_install_all):
asm-arc/kvm_para.h
asm-arc/ucontext.h
asm-blackfin/shmparam.h
asm-blackfin/ucontext.h
asm-c6x/shmparam.h
asm-c6x/ucontext.h
asm-cris/kvm_para.h
asm-h8300/shmparam.h
asm-h8300/ucontext.h
asm-hexagon/shmparam.h
asm-m32r/kvm_para.h
asm-m68k/kvm_para.h
asm-m68k/shmparam.h
asm-metag/kvm_para.h
asm-metag/shmparam.h
asm-metag/ucontext.h
asm-mips/hwcap.h
asm-mips/reg.h
asm-mips/ucontext.h
asm-nios2/kvm_para.h
asm-nios2/ucontext.h
asm-openrisc/shmparam.h
asm-parisc/kvm_para.h
asm-powerpc/perf_regs.h
asm-sh/kvm_para.h
asm-sh/ucontext.h
asm-tile/shmparam.h
asm-unicore32/shmparam.h
asm-unicore32/ucontext.h
asm-x86/hwcap2.h
asm-xtensa/kvm_para.h
drm/armada_drm.h
drm/etnaviv_drm.h
drm/vgem_drm.h
linux/aspeed-lpc-ctrl.h
linux/auto_dev-ioctl.h
linux/bcache.h
linux/btrfs_tree.h
linux/can/vxcan.h
linux/cifs/cifs_mount.h
linux/coresight-stm.h
linux/cryptouser.h
linux/fsmap.h
linux/genwqe/genwqe_card.h
linux/hash_info.h
linux/kcm.h
linux/kcov.h
linux/kfd_ioctl.h
linux/lightnvm.h
linux/module.h
linux/nbd-netlink.h
linux/nilfs2_api.h
linux/nilfs2_ondisk.h
linux/nsfs.h
linux/pr.h
linux/qrtr.h
linux/rpmsg.h
linux/sched/types.h
linux/sed-opal.h
linux/smc.h
linux/smc_diag.h
linux/stm.h
linux/switchtec_ioctl.h
linux/vfio_ccw.h
linux/wil6210_uapi.h
rdma/bnxt_re-abi.h

Note that I have removed from this list the files which are generated in every
exported directories (like .install or .install.cmd).

Thanks to Julien Floret <julien.floret@6wind.com> for the tip to get all
subdirs with a pure makefile command.

For the record, note that exported files for asm directories are a mix of
files listed by:
 - include/uapi/asm-generic/Kbuild.asm;
 - arch/<arch>/include/uapi/asm/Kbuild;
 - arch/<arch>/include/asm/Kbuild.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Acked-by: Mark Salter <msalter@redhat.com>
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-05-11 00:21:54 +09:00
Nicolas Dichtel
bd73a328cb Makefile.headersinst: remove destination-y option
This option was added in commit c7bb349e7c ("kbuild: introduce destination-y
for exported headers") but never used in-tree.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-05-11 00:18:37 +09:00
Nicolas Dichtel
7c025b2afc Makefile.headersinst: cleanup input files
After the last three patches, all exported headers are under uapi/, thus
input-files2 are not needed anymore.
The side effect is that input-files1-name is exactly header-y.

Note also that input-files3-name is genhdr-y.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-05-11 00:18:37 +09:00
Joe Perches
8ac1ed7914 treewide: spelling: correct diffrent[iate] and banlance typos
Add these misspellings to scripts/spelling.txt too

Link: http://lkml.kernel.org/r/962aace119675e5fe87be2a88ddac1a5486f8e60.1490931810.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-05-08 17:15:13 -07:00
Masahiro Yamada
6e7c2b4dd3 scripts/spelling.txt: add "intialise(d)" pattern and fix typo instances
Fix typos and add the following to the scripts/spelling.txt:

  intialisation||initialisation
  intialised||initialised
  intialise||initialise

This commit does not intend to change the British spelling itself.

Link: http://lkml.kernel.org/r/1481573103-11329-18-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-05-08 17:15:13 -07:00
Stephen Boyd
ad61dd303a scripts/spelling.txt: add regsiter -> register spelling mistake
This typo is quite common.  Fix it and add it to the spelling file so
that checkpatch catches it earlier.

Link: http://lkml.kernel.org/r/20170317011131.6881-2-sboyd@codeaurora.org
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-05-08 17:15:13 -07:00
Stephen Boyd
d1b7c9344b scripts/spelling.txt: add "memory" pattern and fix typos
Fix typos and add the following to the scripts/spelling.txt:

      momery||memory

Link: http://lkml.kernel.org/r/20170317011131.6881-1-sboyd@codeaurora.org
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-05-08 17:15:13 -07:00
Joe Perches
f6950a735f checkpatch: improve the SUSPECT_CODE_INDENT test
The current SUSPECT_CODE_INDENT test does not recognize several
defective code style defects where code following a logical test is
inappropriately indented.

Before this patch, for code like:

	if (foo)
	bar();

checkpatch would not emit a warning.

Improve the test to warn when code after a logical test has the same
indentation as the logical test.

Perform the same indentation test for "else" blocks too.

Link: http://lkml.kernel.org/r/df2374b68c4a68af2b7ef08afe486584811f610a.1493683942.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-05-08 17:15:11 -07:00
Joe Perches
74fd4f347b checkpatch: improve the embedded function name test for patch contexts
The current test works only for a single patch context as it is done in
the foreach ($rawlines) loop that precedes the loop where the actual
$context_function variable is used.

Move the set of $context_function into the foreach (@lines) loop where
it is useful for each patch context.

Link: http://lkml.kernel.org/r/6c675a31c74fbfad4fc45b9f462303d60ca2a283.1493486091.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-05-08 17:15:11 -07:00
Jerome Forissier
75ad8c575a checkpatch: add --typedefsfile
When using checkpatch on out-of-tree code, it may occur that some
project-specific types are used, which will cause spurious warnings.
Add the --typedefsfile option as a way to extend the known types and
deal with this issue.

This was developed for OP-TEE [1].  We run a Travis job on all pull
requests [2], and checkpatch is part of that.  The typical false warning
we get on a regular basis is with some pointers to functions returning
TEE_Result [3], which is a typedef from the GlobalPlatform APIs.  We
consider it is acceptable to use GP types in the OP-TEE core
implementation, that's why this patch would be helpful for us.

[1] https://github.com/OP-TEE/optee_os
[2] https://travis-ci.org/OP-TEE/optee_os/builds
[3] https://travis-ci.org/OP-TEE/optee_os/builds/193355335#L1733

Link: http://lkml.kernel.org/r/ba1124d6dfa599bb0dd1d8919dd45dd09ce541a4.1492702192.git.jerome.forissier@linaro.org
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Cc: Joe Perches <joe@perches.com>
Cc: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-05-08 17:15:11 -07:00
Joe Perches
1b4a2ed4c8 checkpatch: improve k.alloc with multiplication and sizeof test
Find multi-line uses of k.alloc by using the $stat variable and not the
$line variable.  This can still --fix only the single line variant
though.

Link: http://lkml.kernel.org/r/3f4b23d37cd4c7d8628eefc25afe83ba8fb3ab55.1493167076.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-05-08 17:15:11 -07:00
Wei Wang
e882dbfc24 checkpatch: special audit for revert commit line
Currently checkpatch.pl does not recognize git's default commit revert
message and will complain about the hash format.  Add special audit for
revert commit message line to fix it.

Link: http://lkml.kernel.org/r/20170411191532.74381-1-wvw@google.com
Signed-off-by: Wei Wang <wvw@google.com>
Acked-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-05-08 17:15:11 -07:00
Joe Perches
e4b7d3091d checkpatch: clarify the EMBEDDED_FUNCTION_NAME message
Try to make the conversion of embedded function names to "%s: ", __func__
a bit clearer.

Add a bit more information to the comment describing the test too.

Link: http://lkml.kernel.org/r/38f5d32f0aec1cd98cb9ceeedd6a736cc9a802db.1491759835.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-05-08 17:15:11 -07:00
Joe Perches
e795556a58 checkpatch: improve MULTISTATEMENT_MACRO_USE_DO_WHILE test
The logic currrently misses macros that start with an if statement.

e.g.:    #define foo(bar)   if (bar) baz;

Add a test for macro content that starts with if

Link: http://lkml.kernel.org/r/a9d41aafe1673889caf1a9850208fb7fd74107a0.1491783914.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Reported-by: Andreas Mohr <andi@lisas.de>
Original-patch-by: Alfonso Lima <alfonsolimaastor@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-05-08 17:15:11 -07:00
Joe Perches
d9190e4e1a checkpatch: avoid suggesting struct definitions should be const
Many structs are generally used const and there is a known list of these
structs.

struct definitions should not be generally be declared const.

Add a test for the lack of an open brace immediately after the struct to
avoid definitions.

This avoids the false positive "struct foo should normally be const"
message only when the open brace is on the same line as the definition.

Link: http://lkml.kernel.org/r/0dce709150d712e66f1b90b03827634b53b28085.1491845946.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Arthur Brainville <ybalrid@ybalrid.info>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-05-08 17:15:11 -07:00
Joe Perches
eb3a58de3e checkpatch: allow space leading blank lines in email headers
Allow a leading space and otherwise blank link in the email headers as
it can be a line wrapped Spamassassin multiple line string or any other
valid rfc 2822/5322 email header.

The line with space causes checkpatch to erroneously think that it's in
the content body, as opposed to headers and thus flag a mail header as
an unwrapped long comment line.

Link: http://lkml.kernel.org/r/d75a9f0b78b3488078429f4037d9fff3bdfa3b78.1490247180.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>Reported-by: Darren Hart (VMware) <dvhart@infradead.org>
Tested-by: Darren Hart (VMware) <dvhart@infradead.org>
Reviewed-by: Darren Hart (VMware) <dvhart@vmware.com>
Original-patch-by: John 'Warthog9' Hawley (VMware) <warthog9@eaglescrag.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-05-08 17:15:11 -07:00
Joe Perches
4dbed76f24 checkpatch: improve EMBEDDED_FUNCTION_NAME test
The existing behavior relies on patch context to identify function
declarations.  Add the ability to find function declarations when there
is an open brace in column 1.

This finds function declarations only in specific single line forms
where the function name is on a single line like:

  int foo(args...)
  {

and

  int
  foo(args...)
  {

It does not recognize function declarations like:

  int foo(int bar,
          int baz)
  {

Link: http://lkml.kernel.org/r/738d74bbbe1a06b80f11ed504818107c68903095.1488155636.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-05-08 17:15:11 -07:00
Joe Perches
0b523769eb checkpatch: add ability to find bad uses of vsprintf %p<foo> extensions
%pK was at least once misused at %pk in an out-of-tree module.  This
lead to some security concerns.  Add the ability to track single and
multiple line statements for misuses of %p<foo>.

[akpm@linux-foundation.org: add helpful comment into lib/vsprintf.c]
[akpm@linux-foundation.org: text tweak]
Link: http://lkml.kernel.org/r/163a690510e636a23187c0dc9caa09ddac6d4cde.1488228427.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Kees Cook <keescook@chromium.org>
Acked-by: William Roberts <william.c.roberts@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-05-08 17:15:10 -07:00
Ruslan Bilovol
cd8618ab3d checkpatch: remove obsolete CONFIG_EXPERIMENTAL checks
Config EXPERIMENTAL has been removed from kernel in 2013 (see commit
3d374d09f1: "final removal of CONFIG_EXPERIMENTAL"), there is no any
reason to do these checks now.

Link: http://lkml.kernel.org/r/1488234097-20119-1-git-send-email-ruslan.bilovol@gmail.com
Signed-off-by: Ruslan Bilovol <ruslan.bilovol@gmail.com>
Acked-by: Kees Cook <keescook@chromium.org>
Acked-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-05-08 17:15:10 -07:00
Masahiro Yamada
f55813b4d8 kbuild: dtbinst: remove unnecessary __dtbs_install_prep target
Since commit 5399eb9b39 ("dtbsinstall: don't move target directory
out of the way"), the target __dtbs_install_prep is invoked just for
creating the install directory, but all the necessary directories
are automatically created by:
   cmd_dtb_install = mkdir -p $(2); cp $< $(2)

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-05-08 07:26:06 +09:00
Linus Torvalds
3ef2bc099d DeviceTree for 4.12:
- Fix sparse warnings in drivers/of/.
 
 - Add more overlay unittests.
 
 - Update dtc to v1.4.4-8-g756ffc4f52f6. This adds more checks on dts
 files such as unit-address formatting and stricter character sets for
 node and property names.
 
 - Add a common DT modalias function.
 
 - Move trivial-devices.txt up and out of i2c dir.
 
 - ARM NVIC interrupt controller binding.
 
 - Vendor prefixes for Sensirion, Dioo, Nordic, ROHM.
 
 - Correct some binding file locations.
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Merge tag 'devicetree-for-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull DeviceTree updates from Rob Herring:

 - fix sparse warnings in drivers/of/

 - add more overlay unittests

 - update dtc to v1.4.4-8-g756ffc4f52f6. This adds more checks on dts
   files such as unit-address formatting and stricter character sets for
   node and property names

 - add a common DT modalias function

 - move trivial-devices.txt up and out of i2c dir

 - ARM NVIC interrupt controller binding

 - vendor prefixes for Sensirion, Dioo, Nordic, ROHM

 - correct some binding file locations

* tag 'devicetree-for-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (24 commits)
  of: fix sparse warnings in fdt, irq, reserved mem, and resolver code
  of: fix sparse warning in of_pci_range_parser_one
  of: fix sparse warnings in of_find_next_cache_node
  of/unittest: Missing unlocks on error
  of: fix uninitialized variable warning for overlay test
  of: fix unittest build without CONFIG_OF_OVERLAY
  of: Add unit tests for applying overlays
  of: per-file dtc compiler flags
  fpga: region: add missing DT documentation for config complete timeout
  of: Add vendor prefix for ROHM Semiconductor
  of: fix "/cpus" reference leak in of_numa_parse_cpu_nodes()
  of: Add vendor prefix for Nordic Semiconductor
  dt-bindings: arm,nvic: Binding for ARM NVIC interrupt controller on Cortex-M
  dtc: update warning settings for new bus and node/property name checks
  scripts/dtc: Update to upstream version v1.4.4-8-g756ffc4f52f6
  scripts/dtc: automate getting dtc version and log in update script
  of: Add function for generating a DT modalias with a newline
  of: fix of_device_get_modalias returned length when truncating buffers
  Documentation: devicetree: move trivial-devices out of I2C realm
  dt-bindings: add vendor prefix for Dioo
  ..
2017-05-05 19:33:07 -07:00
Linus Torvalds
af82455f7d char/misc patches for 4.12-rc1
Here is the big set of new char/misc driver drivers and features for
 4.12-rc1.
 
 There's lots of new drivers added this time around, new firmware drivers
 from Google, more auxdisplay drivers, extcon drivers, fpga drivers, and
 a bunch of other driver updates.  Nothing major, except if you happen to
 have the hardware for these drivers, and then you will be happy :)
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver updates from Greg KH:
 "Here is the big set of new char/misc driver drivers and features for
  4.12-rc1.

  There's lots of new drivers added this time around, new firmware
  drivers from Google, more auxdisplay drivers, extcon drivers, fpga
  drivers, and a bunch of other driver updates. Nothing major, except if
  you happen to have the hardware for these drivers, and then you will
  be happy :)

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'char-misc-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (136 commits)
  firmware: google memconsole: Fix return value check in platform_memconsole_init()
  firmware: Google VPD: Fix return value check in vpd_platform_init()
  goldfish_pipe: fix build warning about using too much stack.
  goldfish_pipe: An implementation of more parallel pipe
  fpga fr br: update supported version numbers
  fpga: region: release FPGA region reference in error path
  fpga altera-hps2fpga: disable/unprepare clock on error in alt_fpga_bridge_probe()
  mei: drop the TODO from samples
  firmware: Google VPD sysfs driver
  firmware: Google VPD: import lib_vpd source files
  misc: lkdtm: Add volatile to intentional NULL pointer reference
  eeprom: idt_89hpesx: Add OF device ID table
  misc: ds1682: Add OF device ID table
  misc: tsl2550: Add OF device ID table
  w1: Remove unneeded use of assert() and remove w1_log.h
  w1: Use kernel common min() implementation
  uio_mf624: Align memory regions to page size and set correct offsets
  uio_mf624: Refactor memory info initialization
  uio: Allow handling of non page-aligned memory regions
  hangcheck-timer: Fix typo in comment
  ...
2017-05-04 19:15:35 -07:00
Linus Torvalds
a1be8edda4 Modules updates for v4.12
Summary of modules changes for the 4.12 merge window:
 
 - Minor code cleanups
 
 - Fix section alignment for .init_array
 
 Signed-off-by: Jessica Yu <jeyu@redhat.com>
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Merge tag 'modules-for-v4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux

Pull modules updates from Jessica Yu:

 - Minor code cleanups

 - Fix section alignment for .init_array

* tag 'modules-for-v4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux:
  kallsyms: Use bounded strnchr() when parsing string
  module: Unify the return value type of try_module_get
  module: set .init_array alignment to 8
2017-05-03 19:12:27 -07:00
Linus Torvalds
4c174688ee New features for this release:
o Pretty much a full rewrite of the processing of function plugins.
    i.e. echo do_IRQ:stacktrace > set_ftrace_filter
 
  o The rewrite was needed to add plugins to be unique to tracing instances.
    i.e. mkdir instance/foo; cd instances/foo; echo do_IRQ:stacktrace > set_ftrace_filter
    The old way was written very hacky. This removes a lot of those hacks.
 
  o New "function-fork" tracing option. When set, pids in the set_ftrace_pid
    will have their children added when the processes with their pids
    listed in the set_ftrace_pid file forks.
 
  o Exposure of "maxactive" for kretprobe in kprobe_events
 
  o Allow for builtin init functions to be traced by the function tracer
    (via the kernel command line). Module init function tracing will come
    in the next release.
 
  o Added more selftests, and have selftests also test in an instance.
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Merge tag 'trace-v4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing updates from Steven Rostedt:
 "New features for this release:

   - Pretty much a full rewrite of the processing of function plugins.
     i.e. echo do_IRQ:stacktrace > set_ftrace_filter

   - The rewrite was needed to add plugins to be unique to tracing
     instances. i.e. mkdir instance/foo; cd instances/foo; echo
     do_IRQ:stacktrace > set_ftrace_filter The old way was written very
     hacky. This removes a lot of those hacks.

   - New "function-fork" tracing option. When set, pids in the
     set_ftrace_pid will have their children added when the processes
     with their pids listed in the set_ftrace_pid file forks.

   - Exposure of "maxactive" for kretprobe in kprobe_events

   - Allow for builtin init functions to be traced by the function
     tracer (via the kernel command line). Module init function tracing
     will come in the next release.

   - Added more selftests, and have selftests also test in an instance"

* tag 'trace-v4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (60 commits)
  ring-buffer: Return reader page back into existing ring buffer
  selftests: ftrace: Allow some event trigger tests to run in an instance
  selftests: ftrace: Have some basic tests run in a tracing instance too
  selftests: ftrace: Have event tests also run in an tracing instance
  selftests: ftrace: Make func_event_triggers and func_traceonoff_triggers tests do instances
  selftests: ftrace: Allow some tests to be run in a tracing instance
  tracing/ftrace: Allow for instances to trigger their own stacktrace probes
  tracing/ftrace: Allow for the traceonoff probe be unique to instances
  tracing/ftrace: Enable snapshot function trigger to work with instances
  tracing/ftrace: Allow instances to have their own function probes
  tracing/ftrace: Add a better way to pass data via the probe functions
  ftrace: Dynamically create the probe ftrace_ops for the trace_array
  tracing: Pass the trace_array into ftrace_probe_ops functions
  tracing: Have the trace_array hold the list of registered func probes
  ftrace: If the hash for a probe fails to update then free what was initialized
  ftrace: Have the function probes call their own function
  ftrace: Have each function probe use its own ftrace_ops
  ftrace: Have unregister_ftrace_function_probe_func() return a value
  ftrace: Add helper function ftrace_hash_move_and_update_ops()
  ftrace: Remove data field from ftrace_func_probe structure
  ...
2017-05-03 18:41:21 -07:00
Linus Torvalds
dd23f273d9 Merge branch 'akpm' (patches from Andrew)
Merge misc updates from Andrew Morton:

 - a few misc things

 - most of MM

 - KASAN updates

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (102 commits)
  kasan: separate report parts by empty lines
  kasan: improve double-free report format
  kasan: print page description after stacks
  kasan: improve slab object description
  kasan: change report header
  kasan: simplify address description logic
  kasan: change allocation and freeing stack traces headers
  kasan: unify report headers
  kasan: introduce helper functions for determining bug type
  mm: hwpoison: call shake_page() after try_to_unmap() for mlocked page
  mm: hwpoison: call shake_page() unconditionally
  mm/swapfile.c: fix swap space leak in error path of swap_free_entries()
  mm/gup.c: fix access_ok() argument type
  mm/truncate: avoid pointless cleancache_invalidate_inode() calls.
  mm/truncate: bail out early from invalidate_inode_pages2_range() if mapping is empty
  fs/block_dev: always invalidate cleancache in invalidate_bdev()
  fs: fix data invalidation in the cleancache during direct IO
  zram: reduce load operation in page_same_filled
  zram: use zram_free_page instead of open-coded
  zram: introduce zram data accessor
  ...
2017-05-03 17:55:59 -07:00
Colin Ian King
672934d247 scripts/spelling.txt: add several more common spelling mistakes
Here are some of the more common spelling mistakes that I've found while
fixing up spelling mistakes in kernel error message text.  They probably
should be added to this list so we don't keep on seeing them appearing
again.

Link: http://lkml.kernel.org/r/20170421122534.5378-1-colin.king@canonical.com
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Joe Perches <joe@perches.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-05-03 15:52:07 -07:00
Linus Torvalds
2f34c1231b main drm pull request for 4.12 kernel
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Merge tag 'drm-for-v4.12' of git://people.freedesktop.org/~airlied/linux

Pull drm u pdates from Dave Airlie:
 "This is the main drm pull request for v4.12. Apart from two fixes
  pulls, everything should have been in drm-next for at least 2 weeks.

  The biggest thing in here is AMD released the public headers for their
  upcoming VEGA GPUs. These as always are quite a sizeable chunk of
  header files. They've also added initial non-display support for those
  GPUs, though they aren't available in production yet.

  Otherwise it's pretty much normal.

  New bridge drivers:
   - megachips-stdpxxxx-ge-b850v3-fw LVDS->DP++
   - generic LVDS bridge support.

  Core:
   - Displayport link train failure reporting to userspace
   - debugfs interface cleaned up
   - subsystem TODO in kerneldoc now
   - Extended fbdev support (flipping and vblank wait)
   - drm_platform removed
   - EDP CRC support in helper
   - HF-VSDB SCDC support in EDID parser
   - Lots of code cleanups and header extraction
   - Thunderbolt external GPU awareness
   - Atomic helper improvements
   - Documentation improvements

  panel:
   - Sitronix and Samsung new panel support

  amdgpu:
   - Preliminary vega10 support
   - Multi-level page table support
   - GPU sensor support for userspace
   - PRT support for sparse buffers
   - SR-IOV improvements
   - Non-contig VRAM CPU mapping

  i915:
   - Atomic modesetting enabled by default on Gen5+
   - LSPCON improvements
   - Atomic state handling for cdclk
   - GPU reset improvements
   - In-kernel unit tests
   - Geminilake improvements and color manager support
   - Designware i2c fixes
   - vblank evasion improvements
   - Hotplug safe connector iterators
   - GVT scheduler QoS support
   - GVT Kabylake support

  nouveau:
   - Acceleration support for Pascal (GP10x).
   - Rearchitecture of code handling proprietary signed firmware
   - Fix GTX 970 with odd MMU configuration
   - GP10B support
   - GP107 acceleration support

  vmwgfx:
   - Atomic modesetting support for vmwgfx

  omapdrm:
   - Support for render nodes
   - Refactor omapdss code
   - Fix some probe ordering issues
   - Fix too dark RGB565 rendering

  sunxi:
   - prelim rework for multiple pipes.

  mali-dp:
   - Color management support
   - Plane scaling
   - Power management improvements

  imx-drm:
   - Prefetch Resolve Engine/Gasket on i.MX6QP
   - Deferred plane disabling
   - Separate alpha support

  mediatek:
   - Mediatek SoC MT2701 support

  rcar-du:
   - Gen3 HDMI support

  msm:
   - 4k support for newer chips
   - OPP bindings for gpu
   - prep work for per-process pagetables

  vc4:
   - HDMI audio support
   - fixes

  qxl:
   - minor fixes.

  dw-hdmi:
   - PHY improvements
   - CSC fixes
   - Amlogic GX SoC support"

* tag 'drm-for-v4.12' of git://people.freedesktop.org/~airlied/linux: (1778 commits)
  drm/nouveau/fb/gf100-: Fix 32 bit wraparound in new ram detection
  drm/nouveau/secboot/gm20b: fix the error return code in gm20b_secboot_tegra_read_wpr()
  drm/nouveau/kms: Increase max retries in scanout position queries.
  drm/nouveau/bios/bitP: check that table is long enough for optional pointers
  drm/nouveau/fifo/nv40: no ctxsw for pre-nv44 mpeg engine
  drm: mali-dp: use div_u64 for expensive 64-bit divisions
  drm/i915: Confirm the request is still active before adding it to the await
  drm/i915: Avoid busy-spinning on VLV_GLTC_PW_STATUS mmio
  drm/i915/selftests: Allocate inode/file dynamically
  drm/i915: Fix system hang with EI UP masked on Haswell
  drm/i915: checking for NULL instead of IS_ERR() in mock selftests
  drm/i915: Perform link quality check unconditionally during long pulse
  drm/i915: Fix use after free in lpe_audio_platdev_destroy()
  drm/i915: Use the right mapping_gfp_mask for final shmem allocation
  drm/i915: Make legacy cursor updates more unsynced
  drm/i915: Apply a cond_resched() to the saturated signaler
  drm/i915: Park the signaler before sleeping
  drm: mali-dp: Check the mclk rate and allow up/down scaling
  drm: mali-dp: Enable image enhancement when scaling
  drm: mali-dp: Add plane upscaling support
  ...
2017-05-03 11:44:24 -07:00
Linus Torvalds
0302e28dee Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull security subsystem updates from James Morris:
 "Highlights:

  IMA:
   - provide ">" and "<" operators for fowner/uid/euid rules

  KEYS:
   - add a system blacklist keyring

   - add KEYCTL_RESTRICT_KEYRING, exposes keyring link restriction
     functionality to userland via keyctl()

  LSM:
   - harden LSM API with __ro_after_init

   - add prlmit security hook, implement for SELinux

   - revive security_task_alloc hook

  TPM:
   - implement contextual TPM command 'spaces'"

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (98 commits)
  tpm: Fix reference count to main device
  tpm_tis: convert to using locality callbacks
  tpm: fix handling of the TPM 2.0 event logs
  tpm_crb: remove a cruft constant
  keys: select CONFIG_CRYPTO when selecting DH / KDF
  apparmor: Make path_max parameter readonly
  apparmor: fix parameters so that the permission test is bypassed at boot
  apparmor: fix invalid reference to index variable of iterator line 836
  apparmor: use SHASH_DESC_ON_STACK
  security/apparmor/lsm.c: set debug messages
  apparmor: fix boolreturn.cocci warnings
  Smack: Use GFP_KERNEL for smk_netlbl_mls().
  smack: fix double free in smack_parse_opts_str()
  KEYS: add SP800-56A KDF support for DH
  KEYS: Keyring asymmetric key restrict method with chaining
  KEYS: Restrict asymmetric key linkage using a specific keychain
  KEYS: Add a lookup_restriction function for the asymmetric key type
  KEYS: Add KEYCTL_RESTRICT_KEYRING
  KEYS: Consistent ordering for __key_link_begin and restrict check
  KEYS: Add an optional lookup_restriction hook to key_type
  ...
2017-05-03 08:50:52 -07:00
Jiri Slaby
e8a3118e1f objtool: make it visible in make V=1 output
It is currently impossible to see what is going on with objtool when
building, so call echo-cmd to see the actions:
  gcc -Wp,-MD,arch/x86/entry/.entry_64.o.d  -nostdinc -isystem ...
  ./tools/objtool/objtool check "arch/x86/entry/entry_64.o";

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Michal Marek <mmarek@suse.com>
Cc: linux-kbuild@vger.kernel.org
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-05-03 13:39:37 +09:00
Linus Torvalds
89c9fea3c8 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial tree updates from Jiri Kosina.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial:
  tty: fix comment for __tty_alloc_driver()
  init/main: properly align the multi-line comment
  init/main: Fix double "the" in comment
  Fix dead URLs to ftp.kernel.org
  drivers: Clean up duplicated email address
  treewide: Fix typo in xml/driver-api/basics.xml
  tools/testing/selftests/powerpc: remove redundant CFLAGS in Makefile: "-Wall -O2 -Wall" -> "-O2 -Wall"
  selftests/timers: Spelling s/privledges/privileges/
  HID: picoLCD: Spelling s/REPORT_WRTIE_MEMORY/REPORT_WRITE_MEMORY/
  net: phy: dp83848: Fix Typo
  UBI: Fix typos
  Documentation: ftrace.txt: Correct nice value of 120 priority
  net: fec: Fix typo in error msg and comment
  treewide: Fix typos in printk
2017-05-02 19:09:35 -07:00
Linus Torvalds
c58d4055c0 A reasonably busy cycle for documentation this time around. There is a new
guide for user-space API documents, rather sparsely populated at the
 moment, but it's a start.  Markus improved the infrastructure for
 converting diagrams.  Mauro has converted much of the USB documentation
 over to RST.  Plus the usual set of fixes, improvements, and tweaks.
 
 There's a bit more than the usual amount of reaching out of Documentation/
 to fix comments elsewhere in the tree; I have acks for those where I could
 get them.
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Merge tag 'docs-4.12' of git://git.lwn.net/linux

Pull documentation update from Jonathan Corbet:
 "A reasonably busy cycle for documentation this time around. There is a
  new guide for user-space API documents, rather sparsely populated at
  the moment, but it's a start. Markus improved the infrastructure for
  converting diagrams. Mauro has converted much of the USB documentation
  over to RST. Plus the usual set of fixes, improvements, and tweaks.

  There's a bit more than the usual amount of reaching out of
  Documentation/ to fix comments elsewhere in the tree; I have acks for
  those where I could get them"

* tag 'docs-4.12' of git://git.lwn.net/linux: (74 commits)
  docs: Fix a couple typos
  docs: Fix a spelling error in vfio-mediated-device.txt
  docs: Fix a spelling error in ioctl-number.txt
  MAINTAINERS: update file entry for HSI subsystem
  Documentation: allow installing man pages to a user defined directory
  Doc/PM: Sync with intel_powerclamp code behavior
  zr364xx.rst: usb/devices is now at /sys/kernel/debug/
  usb.rst: move documentation from proc_usb_info.txt to USB ReST book
  convert philips.txt to ReST and add to media docs
  docs-rst: usb: update old usbfs-related documentation
  arm: Documentation: update a path name
  docs: process/4.Coding.rst: Fix a couple of document refs
  docs-rst: fix usb cross-references
  usb: gadget.h: be consistent at kernel doc macros
  usb: composite.h: fix two warnings when building docs
  usb: get rid of some ReST doc build errors
  usb.rst: get rid of some Sphinx errors
  usb/URB.txt: convert to ReST and update it
  usb/persist.txt: convert to ReST and add to driver-api book
  usb/hotplug.txt: convert to ReST and add to driver-api book
  ...
2017-05-02 10:21:17 -07:00
Linus Torvalds
6dc2cce932 Merge branch 'x86-process-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pul x86/process updates from Ingo Molnar:
 "The main change in this cycle was to add the ARCH_[GET|SET]_CPUID
  prctl() ABI extension to control the availability of the CPUID
  instruction, analogously to the existing PR_GET|SET_TSC ABI that
  controls RDTSC.

  Motivation: the 'rr' user-space record-and-replay execution debugger
  would like to trap and emulate the CPUID instruction - which
  instruction is normally unprivileged.

  Trapping CPUID is possible on IvyBridge and later Intel CPUs - expose
  this hardware capability"

* 'x86-process-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/syscalls/32: Ignore arch_prctl for other architectures
  um/arch_prctl: Fix fallout from x86 arch_prctl() rework
  x86/arch_prctl: Add ARCH_[GET|SET]_CPUID
  x86/cpufeature: Detect CPUID faulting support
  x86/syscalls/32: Wire up arch_prctl on x86-32
  x86/arch_prctl: Add do_arch_prctl_common()
  x86/arch_prctl/64: Rename do_arch_prctl() to do_arch_prctl_64()
  x86/arch_prctl/64: Use SYSCALL_DEFINE2 to define sys_arch_prctl()
  x86/arch_prctl: Rename 'code' argument to 'option'
  x86/msr: Rename MISC_FEATURE_ENABLES to MISC_FEATURES_ENABLES
  x86/process: Optimize TIF_NOTSC switch
  x86/process: Correct and optimize TIF_BLOCKSTEP switch
  x86/process: Optimize TIF checks in __switch_to_xtra()
2017-05-01 19:57:58 -07:00
Linus Torvalds
2dbf3d5c32 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/egtvedt/linux-avr32
Pull AVR32 removal from Hans-Christian Noren Egtvedt:
 "This will remove support for AVR32 architecture from the kernel and
  clean away the most obvious architecture related parts. Removing dead
  code in drivers is the next step"

Notes from previous discussion about this:
 "The AVR32 architecture is not keeping up with the development of the
  kernel, and since it shares so much of the drivers with Atmel ARM SoC,
  it is starting to hinder these drivers to develop swiftly.

  Also, all AVR32 AP7 SoC processors are end of lifed from Atmel (now
  Microchip).

  Finally, the GCC toolchain is stuck at version 4.2.x, and has not
  received any patches since the last release from Atmel;
  4.2.4-atmel.1.1.3.avr32linux.1.

  When building kernel v4.10, this toolchain is no longer able to
  properly link the network stack.

  Haavard and I have came to the conclusion that we feel keeping AVR32
  on life support offers more obstacles for Atmel ARMs, than it gives
  joy to AVR32 users. I also suspect there are very few AVR32 users left
  today, if anybody at all"

That discussion was acked by Andy Shevchenko, Boris Brezillon, Nicolas
Ferre, and Haavard Skinnemoen.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/egtvedt/linux-avr32:
  mm: remove AVR32 arch special handling in mm/Kconfig
  lib: remove check for AVR32 arch in test_user_copy
  lib: remove AVR32 entry in Kconfig.debug compile with frame pointers
  scripts: remove AVR32 support from checkstack.pl
  docs: remove all references to AVR32 architecture
  avr32: remove support for AVR32 architecture
2017-05-01 15:02:19 -07:00
Hans-Christian Noren Egtvedt
1e06d1f872 scripts: remove AVR32 support from checkstack.pl
The AVR32 architecture support has been removed from the kernel, hence
remove the related bits from checkstack.pl script.

Signed-off-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no>
Signed-off-by: Håvard Skinnemoen <hskinnemoen@gmail.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-05-01 09:27:15 +02:00
Frank Rowand
331f741679 of: per-file dtc compiler flags
The dtc compiler version that adds initial support was available
in 4.11-rc1.  Add the ability to set an additional dtc compiler
flag is needed by overlays.

Signed-off-by: Frank Rowand <frank.rowand@sony.com>
Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2017-04-27 17:23:54 -05:00
Vinícius Tinti
433db3e260 kbuild: Add support to generate LLVM assembly files
Add rules to kbuild in order to generate LLVM assembly files with the .ll
extension when using clang.

  # from c code
  make CC=clang kernel/pid.ll

Signed-off-by: Vinícius Tinti <viniciustinti@gmail.com>
Signed-off-by: Behan Webster <behanw@converseincode.com>
Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-04-25 08:13:52 +09:00
Andrew Donnellan
9eb3c95896 builddeb: fix typo
Signed-off-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-04-25 08:07:55 +09:00
Riku Voipio
1d34992385 builddeb: Update a few outdated and hardcoded strings
The builddeb script has some hardcoded references to Linux version 2.6
which is ancient. Drop Provides as the virtual packages provided are not
useful anymore. Leave the Provides for linux-kernel-headers, as someone
might still be referring to it.

While at it, updated copyright date and drop Standards-Version: since
the package isn't Debian Standards compliant anyways.

Cc: Timo Sigurdsson <public_timo.s@silentcreek.de>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-04-25 08:06:35 +09:00
Masahiro Yamada
a0ae981eba kbuild: drop -Wno-unknown-warning-option from clang options
Since commit c3f0d0bc5b ("kbuild, LLVMLinux: Add -Werror to
cc-option to support clang"), cc-option and friends work nicely
for clang.

However, -Wno-unknown-warning-option makes clang happy with any
unknown warning options even if -Werror is specified.

Once -Wno-unknown-warning-option is added, any succeeding call of
cc-disable-warning is evaluated positive, then unknown warning
options are accepted.  This should be dropped.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-04-23 16:09:15 +09:00
Jeroen Hofstee
cf0c3e68aa kbuild: fix asm-offset generation to work with clang
KBuild abuses the asm statement to write to a file and
clang chokes about these invalid asm statements. Hack it
even more by fooling this is actual valid asm code.

[masahiro:
 Import Jeroen's work for U-Boot:
 http://patchwork.ozlabs.org/patch/375026/
 Tweak sed script a little to avoid garbage '#' for GCC case, like
 #define NR_PAGEFLAGS 23 /* __NR_PAGEFLAGS       # */ ]

Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Tested-by: Matthias Kaehlcke <mka@chromium.org>
2017-04-23 15:51:26 +09:00
Masahiro Yamada
7dd47b95b0 kbuild: consolidate redundant sed script ASM offset generation
This part ended up in redundant code after touched by multiple
people.

[1] Commit 3234282f33 ("x86, asm: Fix CFI macro invocations to
deal with shortcomings in gas") added parentheses for defined
expressions to support old gas for x86.

[2] Commit a22dcdb003 ("x86, asm: Fix ancient-GAS workaround")
split the pattern into two to avoid parentheses for non-numeric
expressions.

[3] Commit 95a2f6f72d ("Partially revert patch that encloses
asm-offset.h numbers in brackets") removed parentheses from numeric
expressions as well because parentheses in MN10300 assembly have a
special meaning (pointer access).

Apparently, there is a conflict between [1] and [3].  After all,
[3] took precedence, and a long time has passed since then.

Now, merge the two patterns again because the first one is covered
by the other.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
2017-04-23 15:51:21 +09:00
Todd E Brandt
bc167c7de8 tools: power: pm-graph: AnalyzeSuspend v4.6
Moved from scripts into tools, and updated from 4.5 to 4.6
- Changed the tool title to SleepGraph
- Reformatted the code so analyze_suspend can be used as a library
- Reorganized all html/js/css handling code to be used by other tools
- upgraded the -summary feature to work faster with better readability

Signed-off-by: Todd Brandt <todd.e.brandt@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-04-19 23:26:40 +02:00
James Morris
fa5b5b26e2 Merge branch 'stable-4.12' of git://git.infradead.org/users/pcmoore/selinux into next 2017-04-19 08:30:08 +10:00
Matthias Kaehlcke
ebf003f0cf kbuild: Consolidate header generation from ASM offset information
Largely redundant code is used in different places to generate C headers
from offset information extracted from assembly language output.
Consolidate the code in Makefile.lib and use this instead.

Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-04-13 05:43:37 +09:00
Mark Charlebois
c3f0d0bc5b kbuild, LLVMLinux: Add -Werror to cc-option to support clang
Clang will warn about unknown warnings but will not return false
unless -Werror is set. GCC will return false if an unknown
warning is passed.

Adding -Werror make both compiler behave the same.

[arnd: it turns out we need the same patch for testing whether -ffunction-sections
       works right with gcc. I've build tested extensively with this patch
       applied, so let's just merge this one now.]

Signed-off-by: Mark Charlebois <charlebm@gmail.com>
Signed-off-by: Behan Webster <behanw@converseincode.com>
Reviewed-by: Jan-Simon Möller <dl9pf@gmx.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-04-12 04:34:20 +09:00
Dave Airlie
b769fefb68 Linux 4.11-rc6
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Backmerge tag 'v4.11-rc6' into drm-next

Linux 4.11-rc6

drm-misc needs 4.11-rc5, may as well fix conflicts with rc6.
2017-04-11 07:40:42 +10:00
Saul Wold
8af11c1cdd ver_linux: Use /usr/bin/awk instead of /bin/awk
Most Linux distributions contain awk in /usr/bin by default,
not in /bin. This script's suggested use is for creating version
information for bug reporting.

This has been tested on a number of different distributions,
including Fedora, Ubuntu, OpenSUSE, Debian, Centos, Arch Linuxi,
and Poky!

Signed-off-by: Saul Wold <sgw@linux.intel.com>
Reviewed-by: Alexander Kapshuk <alexander.kapshuk@gmail.com>
Reviewed-by: Mark Gross <mgross@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-08 18:03:42 +02:00
Linus Torvalds
9f0bffa18c Kbuild fixes for v4.11
- Hand-off primary maintainership of Kbuild
 - Fix build warnings
 - Fix build error when GCOV is enabled with old compiler
 - Fix HAVE_ASM_GOTO check when GCC plugin is enabled
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Merge tag 'kbuild-fixes-v4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild fixes from Masahiro Yamada:

 - hand-off primary maintainership of Kbuild

 - fix build warnings

 - fix build error when GCOV is enabled with old compiler

 - fix HAVE_ASM_GOTO check when GCC plugin is enabled

* tag 'kbuild-fixes-v4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  gconfig: remove misleading parentheses around a condition
  jump label: fix passing kbuild_cflags when checking for asm goto support
  Kbuild: use cc-disable-warning consistently for maybe-uninitialized
  kbuild: external module build warnings when KBUILD_OUTPUT set and W=1
  MAINTAINERS: add Masahiro Yamada as a Kbuild maintainer
2017-04-05 08:37:28 -07:00
Mauro Carvalho Chehab
f9b5c5304c scripts/kernel-doc: fix handling of parameters with parenthesis
lib/crc32c defines one parameter as:
	const u32 (*tab)[256]

Better handle parenthesis, to avoid those warnings:

./lib/crc32.c:149: warning: No description found for parameter 'tab)[256]'
./lib/crc32.c:149: warning: Excess function parameter 'tab' description in 'crc32_le_generic'
./lib/crc32.c:294: warning: No description found for parameter 'tab)[256]'
./lib/crc32.c:294: warning: Excess function parameter 'tab' description in 'crc32_be_generic'

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-04-02 14:06:56 -06:00
Mauro Carvalho Chehab
b97f193abf scripts/kernel-doc: fix parser for apostrophes
On ReST, adding a text like ``literal`` is valid. However,
the kernel-doc script won't handle it fine.

We really need this feature, in order to escape things like
%ph, with is found on some C files.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-04-02 14:06:50 -06:00
Josh Poimboeuf
3f135e57a4 x86/build: Mostly disable '-maccumulate-outgoing-args'
The GCC '-maccumulate-outgoing-args' flag is enabled for most configs,
mostly because of issues which are no longer relevant.  For most
configs, and with most recent versions of GCC, it's no longer needed.

Clarify which cases need it, and only enable it for those cases.  Also
produce a compile-time error for the ftrace graph + mcount + '-Os' case,
which will otherwise cause runtime failures.

The main benefit of '-maccumulate-outgoing-args' is that it prevents an
ugly prologue for functions which have aligned stacks.  But removing the
option also has some benefits: more readable argument saves, smaller
text size, and (presumably) slightly improved performance.

Here are the object size savings for 32-bit and 64-bit defconfig
kernels:

      text	   data	    bss	     dec	    hex	filename
  10006710	3543328	1773568	15323606	 e9d1d6	vmlinux.x86-32.before
   9706358	3547424	1773568	15027350	 e54c96	vmlinux.x86-32.after

      text	   data	    bss	     dec	    hex	filename
  10652105	4537576	 843776	16033457	 f4a6b1	vmlinux.x86-64.before
  10639629	4537576	 843776	16020981	 f475f5	vmlinux.x86-64.after

That comes out to a 3% text size improvement on x86-32 and a 0.1% text
size improvement on x86-64.

Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Andrew Lutomirski <luto@kernel.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20170316193133.zrj6gug53766m6nn@treble
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-03-30 11:53:04 +02:00
Rob Herring
8654cb8d03 dtc: update warning settings for new bus and node/property name checks
dtc gained new warnings checking PCI and simple buses, unit address
formatting, and stricter node and property name checking. Disable the
new dtc warnings by default as there are 1000s. As before, warnings are
enabled with W=1 or W=2. The strict node and property name checks are a
bit subjective, so they are only enabled for W=2.

Signed-off-by: Rob Herring <robh@kernel.org>
2017-03-29 16:49:41 -05:00
SeongJae Park
4f6cce3910 Fix dead URLs to ftp.kernel.org
URLs to ftp.kernel.org are still exist though the service is closed [0].
This commit fixes the URLs to use www.kernel.org instead.

[0] https://www.kernel.org/shutting-down-ftp-services.html

Signed-off-by: SeongJae Park <sj38.park@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2017-03-28 16:16:52 +02:00
Steven Rostedt (VMware)
42c269c88d ftrace: Allow for function tracing to record init functions on boot up
Adding a hook into free_reserve_area() that informs ftrace that boot up init
text is being free, lets ftrace safely remove those init functions from its
records, which keeps ftrace from trying to modify text that no longer
exists.

Note, this still does not allow for tracing .init text of modules, as
modules require different work for freeing its init code.

Link: http://lkml.kernel.org/r/1488502497.7212.24.camel@linux.intel.com

Cc: linux-mm@kvack.org
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Peter Zijlstra <peterz@infradead.org>
Requested-by: Todd Brandt <todd.e.brandt@linux.intel.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2017-03-24 20:51:49 -04:00
Arnd Bergmann
f3e4559781 x86/syscalls/32: Ignore arch_prctl for other architectures
sys_arch_prctl is only provided on x86, and there is no reason
to add it elsewhere. However, including it on the 32-bit syscall
table caused a warning for most configurations on non-x86:

:1328:2: warning: #warning syscall arch_prctl not implemented [-Wcpp]

This adds an exception to the syscall table checking script.

Fixes: 79170fda31 ("x86/syscalls/32: Wire up arch_prctl on x86-32")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Kyle Huey <khuey@kylehuey.com>
Link: http://lkml.kernel.org/r/20170323151904.706286-1-arnd@arndb.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2017-03-24 14:13:55 +01:00
Dave Airlie
65d1086c44 Linux 4.11-rc3
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BackMerge tag 'v4.11-rc3' into drm-next

Linux 4.11-rc3 as requested by Daniel
2017-03-23 12:05:13 +10:00
Rob Herring
89d123106a scripts/dtc: Update to upstream version v1.4.4-8-g756ffc4f52f6
This adds the following commits from upstream:

756ffc4f52f6 Build pylibfdt as part of the normal build process
8cb3896358e9 Adjust libfdt.h to work with swig
b40aa8359aff Mention pylibfdt in the documentation
12cfb740cc76 Add tests for pylibfdt
50f250701631 Add an initial Python library for libfdt
cdbb2b6c7a3a checks: Warn on node name unit-addresses with '0x' or leading 0s
4c15d5da17cc checks: Add bus checks for simple-bus buses
33c3985226d3 checks: Add bus checks for PCI buses
558cd81bdd43 dtc: Bump version to v1.4.4
c17a811c62eb fdtput: Remove star from value_len documentation
194d5caaefcb fdtget: Use @return to document the return value
d922ecdd017b tests: Make realloc_fdt() really allocate *fdt
921cc17fec29 libfdt: overlay: Check the value of the right variable
9ffdf60bf463 dtc: Simplify asm_emit_string() implementation
881012e44386 libfdt: Change names of sparse helper macros
bad5b28049e5 Fix assorted sparse warnings
672ac09ea04d Clean up gcc attributes
49300f2ade6a dtc: Don't abuse struct fdt_reserve_entry
fa8bc7f928ac dtc: Bump version to v1.4.3
34a9886a177f Add printf format attributes
f72508e2b6ca Correct some broken printf() like format mismatches
397d5ef0203c libfdt: Add fdt_setprop_empty()
69a1bd6ad3f9 libfdt: Remove undefined behaviour setting empty properties
acd1b534a592 Print output filename as part of warning messages
120775eb1cf3 dtc: Use streq() in preference to strcmp()
852e9ecbe197 checks: Add Warning for stricter node name character checking
ef0e8f061534 checks: Add Warning for stricter property name character checking
00d7bb1f4b0e dtc: pos parameter to srcpos_string() can't be NULL
95d57726bca4 livetree.c: Fix memory leak
3b9c97093d6e dtc: Fix NULL pointer use in dtlabel + dtref case
43eb551426ea manual: Fix typo it -> in
4baf15f7f13f Makefile: Add tags rule

Signed-off-by: Rob Herring <robh@kernel.org>
2017-03-22 14:56:14 -05:00
Rob Herring
86cef6144d scripts/dtc: automate getting dtc version and log in update script
Further automate the dtc update script to fill in the dtc version and
commit log.

Signed-off-by: Rob Herring <robh@kernel.org>
2017-03-22 14:56:13 -05:00
Nicolas Iooss
9be3213b14 gconfig: remove misleading parentheses around a condition
When building the kernel with clang, the compiler complains about the
presence of a condition inside two pairs of parentheses:

    scripts/kconfig/gconf.c:917:19: error: equality comparison with
    extraneous parentheses [-Werror,-Wparentheses-equality]
                    } else if ((col == COL_OPTION)) {
                                ~~~~^~~~~~~~~~~~~
    scripts/kconfig/gconf.c:917:19: note: remove extraneous parentheses
    around the comparison to silence this warning
                    } else if ((col == COL_OPTION)) {
                               ~    ^            ~
    scripts/kconfig/gconf.c:917:19: note: use '=' to turn this equality
    comparison into an assignment
                    } else if ((col == COL_OPTION)) {
                                    ^~
                                    =

Silence this warning by removing a level of parentheses.

Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-03-22 02:56:33 +09:00
Michal Marek
09549aa1ba deb-pkg: Remove the KBUILD_IMAGE workaround
The arch Makefile are fixed to set KBUILD_IMAGE to the full patch, so
the workaround is no longer needed.

Signed-off-by: Michal Marek <mmarek@suse.com>
Reviewed-by: Riku Voipio <riku.voipio@linaro.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-03-20 22:42:21 +09:00
David Daney
5bd933fe44 module: set .init_array alignment to 8
The proper idiom for aligning linker sections in modules is different
than for built-in sections.  ". = ALIGN();" followed by a forced
output address of 0 does nothing, as forcing the address changes the
value of ".".

Use output section alignment specifier instead.

Fixes: 9ddf82521c ("kernel: add support for .init_array.* constructors")
Reviewed-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Signed-off-by: David Daney <david.daney@cavium.com>
Signed-off-by: Jessica Yu <jeyu@redhat.com>
2017-03-13 09:40:28 -07:00
Allan, Bruce W
4607ebf04b kbuild: external module build warnings when KBUILD_OUTPUT set and W=1
Commit db547ef190 ("Kbuild: don't add obj tree in additional includes")
causes warnings (-Wmissing-include-dirs) when compiling external modules
with KBUILD_OUTPUT set and W=1.  This is because $src can be an absolute
path to the external module source which when prefixed with -I$(srctree)/
generates an incorrect directory path.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-03-11 11:25:57 +09:00
Stephen Boyd
65ba6fa439 scripts: objdiff: Ignore debug info when comparing
If the kernel is configured to be built with debug symbols, or
has bug tables, comparing files may not work if line numbers
change. This makes comparing object files with these options
harder to do. Let's strip out the debug info and drop the
__bug_table here so that we don't see false positives. There may
be other things to drop later, and it may be architecture
specific, but this works for me with my ARM64 build.

Signed-off-by: Stephen Boyd <stephen.boyd@linaro.org>
Reviewed-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-03-11 11:13:38 +09:00
Nicolas Iooss
c017c71ce0 selinux: include sys/socket.h in host programs to have PF_MAX
Compiling with clang and -Wundef makes the compiler report a usage of
undefined PF_MAX macro in security/selinux/include/classmap.h:

    In file included from scripts/selinux/mdp/mdp.c:48:
    security/selinux/include/classmap.h:37:31: warning: no previous
    extern declaration for non-static variable 'secclass_map'
    [-Wmissing-variable-declarations]
    struct security_class_mapping secclass_map[] = {
                                  ^
    security/selinux/include/classmap.h:235:5: error: 'PF_MAX' is not
    defined, evaluates to 0 [-Werror,-Wundef]
    #if PF_MAX > 43
        ^
    In file included from scripts/selinux/genheaders/genheaders.c:17:
    security/selinux/include/classmap.h:37:31: warning: no previous
    extern declaration for non-static variable 'secclass_map'
    [-Wmissing-variable-declarations]
    struct security_class_mapping secclass_map[] = {
                                  ^
    security/selinux/include/classmap.h:235:5: error: 'PF_MAX' is not
    defined, evaluates to 0 [-Werror,-Wundef]
    #if PF_MAX > 43
        ^

PF_MAX is defined in include/linux/socket.h but not in
include/uapi/linux/socket.h. Therefore host programs have to rely on the
definition from libc's /usr/include/bits/socket.h, included by
<sys/socket.h>.

Fix the issue by using sys/socket.h in mdp and genheaders. When
classmap.h is included by security/selinux/avc.c, it uses the kernel
definition of PF_MAX, which makes the test consistent.

Signed-off-by: Nicolas Iooss <nicolas.iooss@m4x.org>
Signed-off-by: Paul Moore <paul@paul-moore.com>
2017-03-10 15:09:27 -05:00
Linus Torvalds
8fe3ccaed0 Merge branch 'akpm' (patches from Andrew)
Merge fixes from Andrew Morton:
 "26 fixes"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (26 commits)
  userfaultfd: remove wrong comment from userfaultfd_ctx_get()
  fat: fix using uninitialized fields of fat_inode/fsinfo_inode
  sh: cayman: IDE support fix
  kasan: fix races in quarantine_remove_cache()
  kasan: resched in quarantine_remove_cache()
  mm: do not call mem_cgroup_free() from within mem_cgroup_alloc()
  thp: fix another corner case of munlock() vs. THPs
  rmap: fix NULL-pointer dereference on THP munlocking
  mm/memblock.c: fix memblock_next_valid_pfn()
  userfaultfd: selftest: vm: allow to build in vm/ directory
  userfaultfd: non-cooperative: userfaultfd_remove revalidate vma in MADV_DONTNEED
  userfaultfd: non-cooperative: fix fork fctx->new memleak
  mm/cgroup: avoid panic when init with low memory
  drivers/md/bcache/util.h: remove duplicate inclusion of blkdev.h
  mm/vmstats: add thp_split_pud event for clarity
  include/linux/fs.h: fix unsigned enum warning with gcc-4.2
  userfaultfd: non-cooperative: release all ctx in dup_userfaultfd_complete
  userfaultfd: non-cooperative: robustness check
  userfaultfd: non-cooperative: rollback userfaultfd_exit
  x86, mm: unify exit paths in gup_pte_range()
  ...
2017-03-10 08:34:42 -08:00
Masahiro Yamada
ef44bca87c Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Pull Michal's unmerged branch into the new Kbuild repository.

* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  genksyms: Regenerate parser
  genksyms: Fix segfault with invalid declarations
2017-03-11 01:18:25 +09:00
Linus Torvalds
794fe7891d Fixes a typo in sancov plugin, exposed in earlier compiler versions
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Merge tag 'gcc-plugins-v4.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull gcc-plugins fix from Kees Cook:
 "Fixes a typo in sancov plugin, exposed in earlier compiler versions"

* tag 'gcc-plugins-v4.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  gcc-plugins: fix sancov_plugin for gcc-5
2017-03-09 18:05:41 -08:00
Masahiro Yamada
505d3085d7 scripts/spelling.txt: add "overide" pattern and fix typo instances
Fix typos and add the following to the scripts/spelling.txt:

  overide||override

While we are here, fix the doubled "address" in the touched line
Documentation/devicetree/bindings/regulator/ti-abb-regulator.txt.

Also, fix the comment block style in the touched hunks in
drivers/media/dvb-frontends/drx39xyj/drx_driver.h.

Link: http://lkml.kernel.org/r/1481573103-11329-21-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-03-09 17:01:09 -08:00
Masahiro Yamada
8a1115ff6b scripts/spelling.txt: add "disble(d)" pattern and fix typo instances
Fix typos and add the following to the scripts/spelling.txt:

  disble||disable
  disbled||disabled

I kept the TSL2563_INT_DISBLED in /drivers/iio/light/tsl2563.c
untouched.  The macro is not referenced at all, but this commit is
touching only comment blocks just in case.

Link: http://lkml.kernel.org/r/1481573103-11329-20-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-03-09 17:01:09 -08:00
Linus Torvalds
f26db9649a There was some breakage with the changes for jump labels in the 4.11 merge
window. Namely powerpc broke as jump labels uses the two LSB bits as flags
 in initialization. A check was added to make sure that all jump label
 entries were 4 bytes aligned, but powerpc didn't work that way for modules.
 Adding an alignment in the module linker script appeared to be the best
 solution.
 
 Jump labels also added an anonymous union to access those LSB bits as a
 normal long. But because this structure had static initialization, it broke
 older compilers that could not statically initialize anonymous unions
 without brackets.
 
 The command line parameter for setting function graph filter broke the
 "EMPTY_HASH" descriptor by modifying it instead of creating a new hash to
 hold the entries.
 
 The command line parameter ftrace_graph_max_depth was added to allow its
 setting at boot time. It uses existing code and only the command line hook
 was added. This is not really a fix, but as it uses existing code without
 affecting anything else, I added it to this release. It was ready before the
 merge window closed, but I wanted to let it sit in linux-next for a couple
 of days first.
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Merge tag 'trace-v4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing fixes from Steven Rostedt:
 "There was some breakage with the changes for jump labels in the 4.11
  merge window:

   - powerpc broke as jump labels uses the two LSB bits as flags in
     initialization.

     A check was added to make sure that all jump label entries were 4
     bytes aligned, but powerpc didn't work that way for modules. Adding
     an alignment in the module linker script appeared to be the best
     solution.

   - Jump labels also added an anonymous union to access those LSB bits
     as a normal long. But because this structure had static
     initialization, it broke older compilers that could not statically
     initialize anonymous unions without brackets.

   - The command line parameter for setting function graph filter broke
     the "EMPTY_HASH" descriptor by modifying it instead of creating a
     new hash to hold the entries.

   - The command line parameter ftrace_graph_max_depth was added to
     allow its setting at boot time. It uses existing code and only the
     command line hook was added.

     This is not really a fix, but as it uses existing code without
     affecting anything else, I added it to this release. It was ready
     before the merge window closed, but I wanted to let it sit in
     linux-next for a couple of days first"

* tag 'trace-v4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  ftrace/graph: Add ftrace_graph_max_depth kernel parameter
  tracing: Add #undef to fix compile error
  jump_label: Add comment about initialization order for anonymous unions
  jump_label: Fix anonymous union initialization
  module: set __jump_table alignment to 8
  ftrace/graph: Do not modify the EMPTY_HASH for the function_graph filter
  tracing: Fix code comment for ftrace_ops_get_func()
2017-03-07 09:37:28 -08:00
Dave Airlie
b558dfd56a Merge tag 'drm-misc-next-2017-03-06' of git://anongit.freedesktop.org/git/drm-misc into drm-next
First slice of drm-misc-next for 4.12:

Core/subsystem-wide:
- link status core patch from Manasi, for signalling link train fail
  to userspace. I also had the i915 patch in here, but that had a
  small buglet in our CI, so reverted.
- more debugfs_remove removal from Noralf, almost there now (Noralf
  said he'll try to follow up with the stragglers).
- drm todo moved into kerneldoc, for better visibility (see
  Documentation/gpu/todo.rst), lots of starter tasks in there.
- devm_ of helpers + use it in sti (from Ben Gaignard, acked by Rob
  Herring)
- extended framebuffer fbdev support (for fbdev flipping), and vblank
  wait ioctl fbdev support (Maxime Ripard)
- misc small things all over, as usual
- add vblank callbacks to drm_crtc_funcs, plus make lots of good use
  of this to simplify drivers (Shawn Guo)
- new atomic iterator macros to unconfuse old vs. new state

Small drivers:
- vc4 improvements from Eric
- vc4 kerneldocs (Eric)!
- tons of improvements for dw-mipi-dsi in rockchip from John Keeping
  and Chris Zhong.
- MAINTAINERS entries for drivers managed in drm-misc. It's not yet
  official, still an experiment, but definitely not complete fail and
  better to avoid confusion. We kinda screwed that up with drm-misc a
  bit when we started committers last year.
- qxl atomic conversion (Gabriel Krisman)
- bunch of virtual driver polish (qxl, virgl, ...)
- misc tiny patches all over

This is the first time we've done the same merge-window blackout for
drm-misc as we've done for drm-intel for ages, hence why we have a
_lot_ of stuff queued already. But it's still only half of drm-intel
(room to grow!), and the drivers in drm-misc experiment seems to work
at least insofar as that you also get lots of driver updates here
alredy.

* tag 'drm-misc-next-2017-03-06' of git://anongit.freedesktop.org/git/drm-misc: (141 commits)
  drm/vc4: Fix OOPSes from trying to cache a partially constructed BO.
  drm/vc4: Fulfill user BO creation requests from the kernel BO cache.
  Revert "drm/i915: Implement Link Rate fallback on Link training failure"
  drm/fb-helper: implement ioctl FBIO_WAITFORVSYNC
  drm: Update drm_fbdev_cma_init documentation
  drm/rockchip/dsi: add dw-mipi power domain support
  drm/rockchip/dsi: fix insufficient bandwidth of some panel
  dt-bindings: add power domain node for dw-mipi-rockchip
  drm/rockchip/dsi: remove mode_valid function
  drm/rockchip/dsi: dw-mipi: correct the coding style
  drm/rockchip/dsi: dw-mipi: support RK3399 mipi dsi
  dt-bindings: add rk3399 support for dw-mipi-rockchip
  drm/rockchip: dw-mipi-dsi: add reset control
  drm/rockchip: dw-mipi-dsi: support non-burst modes
  drm/rockchip: dw-mipi-dsi: defer probe if panel is not loaded
  drm/rockchip: vop: test for P{H,V}SYNC
  drm/rockchip: dw-mipi-dsi: use positive check for N{H, V}SYNC
  drm/rockchip: dw-mipi-dsi: use specific poll helper
  drm/rockchip: dw-mipi-dsi: improve PLL configuration
  drm/rockchip: dw-mipi-dsi: properly configure PHY timing
  ...
2017-03-07 13:59:53 +10:00
David Daney
ab42632156 module: set __jump_table alignment to 8
For powerpc the __jump_table section in modules is not aligned, this
causes a WARN_ON() splat when loading a module containing a __jump_table.

Strict alignment became necessary with commit 3821fd35b5
("jump_label: Reduce the size of struct static_key"), currently in
linux-next, which uses the two least significant bits of pointers to
__jump_table elements.

Fix by forcing __jump_table to 8, which is the same alignment used for
this section in the kernel proper.

Link: http://lkml.kernel.org/r/20170301220453.4756-1-david.daney@cavium.com

Reviewed-by: Jason Baron <jbaron@akamai.com>
Acked-by: Jessica Yu <jeyu@redhat.com>
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Tested-by: Sachin Sant <sachinp@linux.vnet.ibm.com>
Signed-off-by: David Daney <david.daney@cavium.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2017-03-03 09:44:59 -05:00
Josh Poimboeuf
e390f9a968 objtool, modules: Discard objtool annotation sections for modules
The '__unreachable' and '__func_stack_frame_non_standard' sections are
only used at compile time.  They're discarded for vmlinux but they
should also be discarded for modules.

Since this is a recurring pattern, prefix the section names with
".discard.".  It's a nice convention and vmlinux.lds.h already discards
such sections.

Also remove the 'a' (allocatable) flag from the __unreachable section
since it doesn't make sense for a discarded section.

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Jessica Yu <jeyu@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes: d1091c7fa3 ("objtool: Improve detection of BUG() and other dead ends")
Link: http://lkml.kernel.org/r/20170301180444.lhd53c5tibc4ns77@treble
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-03-01 20:32:25 +01:00
Thierry Reding
6472e5090b drm: Introduce drm_property_blob_{get,put}()
For consistency with other reference counting APIs in the kernel, add
drm_property_blob_get() and drm_property_blob_put() to reference count
DRM blob properties.

Compatibility aliases are added to keep existing code working. To help
speed up the transition, all the instances of the old functions in the
DRM core are already replaced in this commit.

A semantic patch is provided that can be used to convert all drivers to
the new helpers.

Reviewed-by: Sean Paul <seanpaul@chromium.org>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170228144643.5668-7-thierry.reding@gmail.com
2017-02-28 16:16:46 +01:00
Thierry Reding
e6b62714e8 drm: Introduce drm_gem_object_{get,put}()
For consistency with other reference counting APIs in the kernel, add
drm_gem_object_get() and drm_gem_object_put(), as well as an unlocked
variant of the latter, to reference count GEM buffer objects.

Compatibility aliases are added to keep existing code working. To help
speed up the transition, all the instances of the old functions in the
DRM core are already replaced in this commit.

The existing semantic patch for the DRM subsystem-wide conversion is
extended to account for these new helpers.

Reviewed-by: Sean Paul <seanpaul@chromium.org>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170228144643.5668-6-thierry.reding@gmail.com
2017-02-28 16:16:43 +01:00
Thierry Reding
a4a69da06b drm: Introduce drm_framebuffer_{get,put}()
For consistency with other reference counting APIs in the kernel, add
drm_framebuffer_get() and drm_framebuffer_put() to reference count DRM
framebuffers.

Compatibility aliases are added to keep existing code working. To help
speed up the transition, all the instances of the old functions in the
DRM core are already replaced in this commit.

The existing semantic patch for the DRM subsystem-wide conversion is
extended to account for these new helpers.

Reviewed-by: Sean Paul <seanpaul@chromium.org>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170228144643.5668-5-thierry.reding@gmail.com
2017-02-28 16:15:03 +01:00
Thierry Reding
ad09360750 drm: Introduce drm_connector_{get,put}()
For consistency with other reference counting APIs in the kernel, add
drm_connector_get() and drm_connector_put() functions to reference count
connectors.

Compatibility aliases are added to keep existing code working. To help
speed up the transition, all the instances of the old functions in the
DRM core are already replaced in this commit.

The existing semantic patch for mode object reference count conversion
is extended for these new helpers.

Reviewed-by: Sean Paul <seanpaul@chromium.org>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170228144643.5668-4-thierry.reding@gmail.com
2017-02-28 16:15:00 +01:00
Thierry Reding
020a218f95 drm: Introduce drm_mode_object_{get,put}()
For consistency with other reference counting APIs in the kernel, add
drm_mode_object_get() and drm_mode_object_put() to reference count DRM
mode objects.

Compatibility aliases are added to keep existing code working. To help
speed up the transition, all the instances of the old functions in the
DRM core are already replaced in this commit.

A semantic patch is provided that can be used to convert all drivers to
the new helpers.

Reviewed-by: Sean Paul <seanpaul@chromium.org>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170228144643.5668-3-thierry.reding@gmail.com
2017-02-28 16:14:55 +01:00
Alexey Dobriyan
522b837c67 checkpatch: warn when formats use %Z and suggest %z
vsnprintf extension %Z<foo> is non-standard C.  Suggest the use of %z
instead.

Miscellanea:

 - Correct the misuse of type string PRINTF_0xDECIMAL type strings are
   supposed to be uppercase only. Fix this and add tr/[a-z]/[A-Z] to the
   type check in case I forget this again sometime in the future.

 - Improve the mechanism to find these defects so all 3 current checks
   are done on the format string

[joe@perches.com: correct the misuse of type string PRINTF_0xDECIMAL, improve the mechanism to find these defects]
  Link: http://lkml.kernel.org/r/4e3ad74b0c9dc229b06018a2d79655308ddbbebd.1484014173.git.joe@perches.com
Link: http://lkml.kernel.org/r/20170109235955.GA6787@avx2
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:48 -08:00
Jinbum Park
d7f6724366 scripts/spelling.txt: add some typo-words
I wrote a simple script to find new typo not in spelling.txt.
(https://github.com/jinb-park/find-linux-kernel-typo)

and get following result:

	[ rank ]
	63 paramaters
	18 alignement
	9 strucuture
	....

The number means how many files include the typo.
This patch adds these common typo.

Link: http://lkml.kernel.org/r/20170112113452.GA7042@pjb1027-Latitude-E5410
Signed-off-by: Jinbum Park <jinb.park7@gmail.com>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:47 -08:00
Masahiro Yamada
4091fb95b5 scripts/spelling.txt: add "followings" pattern and fix typo instances
Fix typos and add the following to the scripts/spelling.txt:

  followings||following

While we are here, add a missing colon in the boilerplate in DT binding
documents.  The "you SoC" in allwinner,sunxi-pinctrl.txt was fixed as
well.

I reworded "as the followings:" to "as follows:" for
drivers/usb/gadget/udc/renesas_usb3.c.

Link: http://lkml.kernel.org/r/1481573103-11329-32-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:47 -08:00
Masahiro Yamada
608595ed9b scripts/spelling.txt: add "therfore" pattern and fix typo instances
Fix typos and add the following to the scripts/spelling.txt:

  therfore||therefore

Besides, tidy up comment blocks for 80-col wrapping.

Link: http://lkml.kernel.org/r/1481573103-11329-31-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:47 -08:00
Masahiro Yamada
b8a14f3379 scripts/spelling.txt: add "overwriten" pattern and fix typo instances
Fix typos and add the following to the scripts/spelling.txt:

  overwrien||overwritten

Link: http://lkml.kernel.org/r/1481573103-11329-30-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:47 -08:00
Masahiro Yamada
9a284e5c9e scripts/spelling.txt: add "overwritting" pattern and fix typo instances
Fix typos and add the following to the scripts/spelling.txt:

  overwritting||overwriting

Link: http://lkml.kernel.org/r/1481573103-11329-29-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:47 -08:00
Masahiro Yamada
1cce200081 scripts/spelling.txt: add "deintialize(d)" pattern and fix typo instances
Fix typos and add the following to the scripts/spelling.txt:

  deintializing||deinitializing
  deintialize||deinitialize
  deintialized||deinitialized

Link: http://lkml.kernel.org/r/1481573103-11329-28-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:47 -08:00
Masahiro Yamada
66f0044908 scripts/spelling.txt: add "disassocation" pattern and fix typo instances
Fix typos and add the following to the scripts/spelling.txt:

  disassocation||disassociation

Link: http://lkml.kernel.org/r/1481573103-11329-27-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:47 -08:00
Masahiro Yamada
0cf2a848ef scripts/spelling.txt: add "omited" pattern and fix typo instances
Fix typos and add the following to the scripts/spelling.txt:

  omited||omitted
  omiting||omitting

Link: http://lkml.kernel.org/r/1481573103-11329-26-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:47 -08:00
Masahiro Yamada
34dcaf40c1 scripts/spelling.txt: add "explictely" pattern and fix typo instances
Fix typos and add the following to the scripts/spelling.txt:

  explictely||explicitly

Link: http://lkml.kernel.org/r/1481573103-11329-25-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:47 -08:00
Masahiro Yamada
a6ab4eff19 scripts/spelling.txt: add "applys" pattern and fix typo instances
Fix typos and add the following to the scripts/spelling.txt:

  applys||applies

The "applyes" in drivers/video/fbdev/aty/radeon_monitor.c is a different
pattern but it was fixed in this commit.  The "This functions" in the
same line was fixed as well.

Link: http://lkml.kernel.org/r/1481573103-11329-24-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:47 -08:00
Masahiro Yamada
2c14960100 scripts/spelling.txt: add "configuartion" pattern and fix typo instances
Fix typos and add the following to the scripts/spelling.txt:

  configuartion||configuration

While we are here, fix the "ouput" as well in the touched hunk in
drivers/media/dvb-frontends/drx39xyj/drx_driver.h.

Link: http://lkml.kernel.org/r/1481573103-11329-23-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:47 -08:00
Masahiro Yamada
03671057c3 scripts/spelling.txt: add "overrided" pattern and fix typo instances
Fix typos and add the following to the scripts/spelling.txt:

  overrided||overridden

Link: http://lkml.kernel.org/r/1481573103-11329-22-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:47 -08:00
Masahiro Yamada
3f8b6fb7f2 scripts/spelling.txt: add "comsume(r)" pattern and fix typo instances
Fix typos and add the following to the scripts/spelling.txt:

  comsume||consume
  comsumer||consumer
  comsuming||consuming

I see some variable names with this pattern, but this commit is only
touching comment blocks to avoid unexpected impact.

Link: http://lkml.kernel.org/r/1481573103-11329-19-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:47 -08:00
Masahiro Yamada
d7f3153e22 scripts/spelling.txt: add "initialiazation" pattern and fix typo instances
Fix typos and add the following to the scripts/spelling.txt:

  initialiazation||initialization

While we are here, fix the "overriden" in the touched line in
drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c.

Link: http://lkml.kernel.org/r/1481573103-11329-17-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:47 -08:00
Masahiro Yamada
183b8021fc scripts/spelling.txt: add "intialization" pattern and fix typo instances
Fix typos and add the following to the scripts/spelling.txt:

  intialization||initialization

The "inintialization" in drivers/acpi/spcr.c is a different pattern but
I fixed it as well in this commit.

Link: http://lkml.kernel.org/r/1481573103-11329-16-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:47 -08:00
Masahiro Yamada
4d39f0ac8e scripts/spelling.txt: add "unneded" pattern and fix typo instances
Fix typos and add the following to the scripts/spelling.txt:

  unneded||unneeded

Link: http://lkml.kernel.org/r/1481573103-11329-15-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:47 -08:00
Masahiro Yamada
176180c2b4 scripts/spelling.txt: add "neded" pattern and fix typo instances
Fix typos and add the following to the scripts/spelling.txt:

  neded||needed

While we are here, fix the "overriden", "wont", and "etc" in the same
hunk in drivers/media/usb/tm6000/tm6000-input.c.

Link: http://lkml.kernel.org/r/1481573103-11329-14-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:47 -08:00
Masahiro Yamada
57366a8d0b scripts/spelling.txt: add "againt" pattern and fix typo instances
Fix typos and add the following to the scripts/spelling.txt:

  againt||against

While we are here, fix the "capabilites" as well in the touched hunk in
drivers/gpu/drm/drm_probe_helper.c.

Link: http://lkml.kernel.org/r/1481573103-11329-13-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:47 -08:00
Masahiro Yamada
b43daedc0e scripts/spelling.txt: add "embeded" pattern and fix typo instances
Fix typos and add the following to the scripts/spelling.txt:

  embeded||embedded

Link: http://lkml.kernel.org/r/1481573103-11329-12-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:47 -08:00
Masahiro Yamada
b564d62e67 scripts/spelling.txt: add "varible" pattern and fix typo instances
Fix typos and add the following to the scripts/spelling.txt:

  varible||variable

While we are here, tidy up the comment blocks that fit in a single line
for drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c and
net/sctp/transport.c.

Link: http://lkml.kernel.org/r/1481573103-11329-11-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:47 -08:00
Masahiro Yamada
4e0385dd74 scripts/spelling.txt: add "efective" pattern and fix typo instances
Fix typos and add the following to the scripts/spelling.txt:

  efective||effective

While we are here, fix the "addres" as well in the touched line in
arch/openrisc/kernel/entry.S.

Link: http://lkml.kernel.org/r/1481573103-11329-10-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:46 -08:00
Masahiro Yamada
89d790ab31 scripts/spelling.txt: add "algined" pattern and fix typo instances
Fix typos and add the following to the scripts/spelling.txt:

  algined||aligned

While we are here, fix the "appplication" in the touched line in
drivers/block/loop.c.  Also, fix the "may not naturally ..." to
"may not be naturally ..." in the touched line in mm/page_alloc.

Link: http://lkml.kernel.org/r/1481573103-11329-9-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:46 -08:00
Masahiro Yamada
550116d21a scripts/spelling.txt: add "aligment" pattern and fix typo instances
Fix typos and add the following to the scripts/spelling.txt:

  aligment||alignment

I did not touch the "N_BYTE_ALIGMENT" macro in
drivers/net/wireless/realtek/rtlwifi/wifi.h to avoid unpredictable
impact.

I fixed "_aligment_handler" in arch/openrisc/kernel/entry.S because
it is surrounded by #if 0 ... #endif.  It is surely safe and I
confirmed "_alignment_handler" is correct.

I also fixed the "controler" I found in the same hunk in
arch/openrisc/kernel/head.S.

Link: http://lkml.kernel.org/r/1481573103-11329-8-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:46 -08:00
Masahiro Yamada
0f5e155830 scripts/spelling.txt: add "an one" pattern and fix typo instances
Fix typos and add the following to the scripts/spelling.txt:

  an one||a one

I dropped the "an" before "one or more" in
drivers/net/ethernet/sfc/mcdi_pcol.h.

Link: http://lkml.kernel.org/r/1481573103-11329-6-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:46 -08:00
Masahiro Yamada
03440c4e5e scripts/spelling.txt: add "an union" pattern and fix typo instances
Fix typos and add the following to the scripts/spelling.txt:

  an union||a union

Link: http://lkml.kernel.org/r/1481573103-11329-5-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:46 -08:00
Masahiro Yamada
9332ef9dbd scripts/spelling.txt: add "an user" pattern and fix typo instances
Fix typos and add the following to the scripts/spelling.txt:

  an user||a user
  an userspace||a userspace

I also added "userspace" to the list since it is a common word in Linux.
I found some instances for "an userfaultfd", but I did not add it to the
list.  I felt it is endless to find words that start with "user" such as
"userland" etc., so must draw a line somewhere.

Link: http://lkml.kernel.org/r/1481573103-11329-4-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:46 -08:00
Masahiro Yamada
c6efb58db4 scripts/spelling.txt: add "swithc" pattern and fix typo instances
Fix typos and add the following to the scripts/spelling.txt:

  swithc||switch
  swithced||switched
  swithcing||switching

Link: http://lkml.kernel.org/r/1481573103-11329-3-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:46 -08:00
Masahiro Yamada
08a7e621ff scripts/spelling.txt: add "swith" pattern and fix typo instances
Fix typos and add the following to the scripts/spelling.txt:

  swith||switch
  swithable||switchable
  swithed||switched
  swithing||switching

While we are here, fix the "update" to "updates" in the touched hunk in
drivers/net/wireless/marvell/mwifiex/wmm.c.

Link: http://lkml.kernel.org/r/1481573103-11329-2-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27 18:43:46 -08:00
Arnd Bergmann
dcc235279a gcc-plugins: fix sancov_plugin for gcc-5
The name of the local variable was inadvertantly changed from
sancov_plugin_pass_info to sancov_pass_info:

scripts/gcc-plugins/sancov_plugin.c: In function ‘int plugin_init(plugin_name_args*, plugin_gcc_version*)’:
scripts/gcc-plugins/sancov_plugin.c:136:67: error: ‘sancov_plugin_pass_info’ was not declared in this scope

This changes the conditional reference to this variable as well.

Fixes: 5a45a4c5c3 ("gcc-plugins: consolidate on PASS_INFO macro")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kees Cook <keescook@chromium.org>
2017-02-27 14:10:10 -08:00
Linus Torvalds
7b46588f36 Merge branch 'akpm' (patches from Andrew)
Merge more updates from Andrew Morton:

 - almost all of the rest of MM

 - misc bits

 - KASAN updates

 - procfs

 - lib/ updates

 - checkpatch updates

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (124 commits)
  checkpatch: remove false unbalanced braces warning
  checkpatch: notice unbalanced else braces in a patch
  checkpatch: add another old address for the FSF
  checkpatch: update $logFunctions
  checkpatch: warn on logging continuations
  checkpatch: warn on embedded function names
  lib/lz4: remove back-compat wrappers
  fs/pstore: fs/squashfs: change usage of LZ4 to work with new LZ4 version
  crypto: change LZ4 modules to work with new LZ4 module version
  lib/decompress_unlz4: change module to work with new LZ4 module version
  lib: update LZ4 compressor module
  lib/test_sort.c: make it explicitly non-modular
  lib: add CONFIG_TEST_SORT to enable self-test of sort()
  rbtree: use designated initializers
  linux/kernel.h: fix DIV_ROUND_CLOSEST to support negative divisors
  lib/find_bit.c: micro-optimise find_next_*_bit
  lib: add module support to atomic64 tests
  lib: add module support to glob tests
  lib: add module support to crc32 tests
  kernel/ksysfs.c: add __ro_after_init to bin_attribute structure
  ...
2017-02-25 10:29:09 -08:00
Linus Torvalds
9e31489029 OpenRISC updates for 4.11
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Merge tag 'openrisc-for-linus' of git://github.com/openrisc/linux

Pull OpenRISC updates from Stafford Horne:
 "Highlights include:

   - optimized memset and memcpy routines, ~20% boot time saving

   - support for cpu idling

   - adding support for l.swa and l.lwa atomic operations (in spec from
     2014)

   - use atomics to implement: bitops, cmpxchg, futex

   - the atomics are in preparation for SMP support"

* tag 'openrisc-for-linus' of git://github.com/openrisc/linux: (25 commits)
  openrisc: head: Init r0 to 0 on start
  openrisc: Export ioremap symbols used by modules
  arch/openrisc/lib/memcpy.c: use correct OR1200 option
  openrisc: head: Remove unused strings
  openrisc: head: Move init strings to rodata section
  openrisc: entry: Fix delay slot detection
  openrisc: entry: Whitespace and comment cleanups
  scripts/checkstack.pl: Add openrisc support
  MAINTAINERS: Add the openrisc official repository
  openrisc: Add .gitignore
  openrisc: Add optimized memcpy routine
  openrisc: Add optimized memset
  openrisc: Initial support for the idle state
  openrisc: Fix the bitmask for the unit present register
  openrisc: remove unnecessary stddef.h include
  openrisc: add futex_atomic_* implementations
  openrisc: add optimized atomic operations
  openrisc: add cmpxchg and xchg implementations
  openrisc: add atomic bitops
  openrisc: add l.lwa/l.swa emulation
  ...
2017-02-24 18:37:03 -08:00
Sven Eckelmann
9533047363 checkpatch: remove false unbalanced braces warning
Lines containing "} else {" should not be detected as unbalanced braces.
But the second check can be reduced to ".+else\s*{" and it therefore
never checked if the beginning of a line contains any other character
(like the relevant "}").  This check would also return true for "} else
{" and create warnings like

    CHECK: Unbalanced braces around else statement
    #391: FILE: ./net/batman-adv/tvlv.c:391:
    +   } else {

The check can be changed to check the whole line for the missing "}" to
avoid this false positive.

Fixes: 0d1532456c26 ("checkpatch: notice unbalanced else braces in a patch")
Link: http://lkml.kernel.org/r/20170220121644.12209-1-sven@narfation.org
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Acked-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-24 17:46:57 -08:00
Joe Perches
e4c5babd32 checkpatch: notice unbalanced else braces in a patch
Patches that add or modify code like

	} else
		<foo>
or
	else {
		<bar>

where one branch appears to have a brace and the other branch does not
have a brace should emit a --strict style message.

Link: http://lkml.kernel.org/r/c6be32747fc725cbc235802991746700a0f54fdc.1486754390.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-24 17:46:57 -08:00
Matthew Wilcox
1bde561e47 checkpatch: add another old address for the FSF
We still have a lot of old addresses for the FSF in the kernel.

  willy@harry:~/kernel/idr$ git grep '675 Mass' |wc -l
  1502
  willy@harry:~/kernel/idr$ git grep '59 Temple' |wc -l
  2825
  willy@harry:~/kernel/idr$ git grep '51 Franklin' |wc -l
  2020

Let's discourage adding the oldest one too.

Link: http://lkml.kernel.org/r/20170128173052.GA23532@bombadil.infradead.org
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Acked-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-24 17:46:57 -08:00
Miles Chen
758d7aada7 checkpatch: update $logFunctions
Currently checkpatch.pl does not recognize printk_deferred* functions as
log functions and complains about the line length of printk_deferred*
functions.  Add printk_deferred* to logFunctions to fix it.

Link: http://lkml.kernel.org/r/1484537124-18083-1-git-send-email-miles.chen@mediatek.com
Signed-off-by: Miles Chen <miles.chen@mediatek.com>
Acked-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-24 17:46:57 -08:00
Joe Perches
45c55e92fc checkpatch: warn on logging continuations
pr_cont(...) and printk(KERN_CONT ...) uses should be discouraged
as their output can be interleaved by multiple logging processes.

Link: http://lkml.kernel.org/r/7100ba00098694ec81471a299583ed068975fd05.1483465888.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-24 17:46:57 -08:00
Joe Perches
77cb8546bc checkpatch: warn on embedded function names
Embedded function names are less appropriate to use when refactoring can
cause function renaming.  Prefer the use of "%s", __func__ to embedded
function names.

Link: http://lkml.kernel.org/r/ac9631fdbac5af3507c5bfe88ad9064f0ed764ec.1483510416.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-24 17:46:57 -08:00
Stafford Horne
f72deab378 scripts/checkstack.pl: Add openrisc support
Openrisc stack pointer is managed by decrementing r1. Add regexes to
recognize this.

Signed-off-by: Stafford Horne <shorne@gmail.com>
2017-02-25 04:30:50 +09:00
Linus Torvalds
bc49a7831b Merge branch 'akpm' (patches from Andrew)
Merge updates from Andrew Morton:
 "142 patches:

   - DAX updates

   - various misc bits

   - OCFS2 updates

   - most of MM"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (142 commits)
  mm/z3fold.c: limit first_num to the actual range of possible buddy indexes
  mm: fix <linux/pagemap.h> stray kernel-doc notation
  zram: remove obsolete sysfs attrs
  mm/memblock.c: remove unnecessary log and clean up
  oom-reaper: use madvise_dontneed() logic to decide if unmap the VMA
  mm: drop unused argument of zap_page_range()
  mm: drop zap_details::check_swap_entries
  mm: drop zap_details::ignore_dirty
  mm, page_alloc: warn_alloc nodemask is NULL when cpusets are disabled
  mm: help __GFP_NOFAIL allocations which do not trigger OOM killer
  mm, oom: do not enforce OOM killer for __GFP_NOFAIL automatically
  mm: consolidate GFP_NOFAIL checks in the allocator slowpath
  lib/show_mem.c: teach show_mem to work with the given nodemask
  arch, mm: remove arch specific show_mem
  mm, page_alloc: warn_alloc print nodemask
  mm, page_alloc: do not report all nodes in show_mem
  Revert "mm: bail out in shrink_inactive_list()"
  mm, vmscan: consider eligible zones in get_scan_count
  mm, vmscan: cleanup lru size claculations
  mm, vmscan: do not count freed pages as PGDEACTIVATE
  ...
2017-02-22 19:29:24 -08:00
Linus Torvalds
be5165a51d DeviceTree updates for 4.11:
- Sync dtc to upstream commit 0931cea3ba20. This picks up overlay
   support in dtc.
 
 - Set dma_ops for reserved memory users.
 
 - Make references to IOMMU consistent in DT bindings.
 
 - Cleanup references to pm_power_off in bindings.
 
 - Move some display bindings that snuck into the old bindings/video/
   path.
 
 - Fix some wrong documentation paths caused from binding restructuring.
 
 - Vendor prefixes for Faraday and Fujitsu.
 
 - Fix an of_node ref counting leak in of_find_node_opts_by_path
 
 - Introduce new graph helper of_graph_get_remote_node() which will be
   used by DRM drivers in 4.12.
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Merge tag 'devicetree-for-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull DeviceTree updates from Rob Herring:
 "Pretty standard stuff with dtc upstream sync being the biggest piece.

   - Sync dtc to upstream commit 0931cea3ba20. This picks up overlay
     support in dtc.

   - Set dma_ops for reserved memory users.

   - Make references to IOMMU consistent in DT bindings.

   - Cleanup references to pm_power_off in bindings.

   - Move some display bindings that snuck into the old bindings/video/
     path.

   - Fix some wrong documentation paths caused from binding
     restructuring.

   - Vendor prefixes for Faraday and Fujitsu.

   - Fix an of_node ref counting leak in of_find_node_opts_by_path

   - Introduce new graph helper of_graph_get_remote_node() which will be
     used by DRM drivers in 4.12"

* tag 'devicetree-for-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (27 commits)
  DT: add Faraday Tec. as vendor
  of: introduce of_graph_get_remote_node
  of: Add missing space at end of pr_fmt().
  of: make of_device_make_bus_id() static
  of: fix of_node leak caused in of_find_node_opts_by_path
  dt-bindings: net: remove reference to fixed link support
  dt-bindings: power: reset: qnap-poweroff: Drop reference to pm_power_off
  dt-bindings: power: reset: gpio-poweroff: Drop reference to pm_power_off
  dt-bindings: mfd: as3722: Drop reference to pm_power_off
  dt-bindings: display: move ANX7814 and SiI8620 bridge bindings
  of/unittest: Swap arguments of of_unittest_apply_overlay()
  Documentation: usb: fix wrong documentation paths
  serial: fsl-imx-uart.txt: Remove generic property
  devicetree: Add Fujitsu Ltd. vendor prefix
  Documentation: display: fix wrong documentation paths
  of: remove redundant memset in overlay
  bus:qcom : Fix typo in qcom,ebi2.txt
  dt-bindings: qman: Remove pool channel node
  Documentation: panel-dpi: fix path to display-timing.txt
  devicetree: bindings: clk: mvebu: fix description for sata1 on Armada XP
  ...
2017-02-22 19:23:14 -08:00
Linus Torvalds
c1aac62f36 A slightly quieter cycle for documentation this time around.
Three more DocBook template files have been converted to RST; only 21 to
 go.  There are various build improvements and the usual array of
 documentation improvements and fixes.
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Merge tag 'docs-4.11' of git://git.lwn.net/linux

Pull documentation updates from Jonathan Corbet:
 "A slightly quieter cycle for documentation this time around.

  Three more DocBook template files have been converted to RST; only 21
  to go. There are various build improvements and the usual array of
  documentation improvements and fixes"

* tag 'docs-4.11' of git://git.lwn.net/linux: (44 commits)
  docs / driver-api: Fix structure references in device_link.rst
  PM / docs: Fix structure references in device.rst
  Add a target to check broken external links in the Documentation
  Documentation: Fix linux-api list typo
  Documentation: DocBook/Makefile comment typo
  Improve sparse documentation
  Documentation: make Makefile.sphinx no-ops quieter
  Documentation: DMA-ISA-LPC.txt
  Documentation: input: fix path to input code definitions
  docs: Remove the copyright year from conf.py
  docs: Fix a warning in the Korean HOWTO.rst translation
  PM / sleep / docs: Convert PM notifiers document to reST
  PM / core / docs: Convert sleep states API document to reST
  PM / core: Update kerneldoc comments in pm.h
  doc-rst: Fix recursive make invocation from macros
  doc-rst: Delete output of failed dot-SVG conversion
  doc-rst: Break shell command sequences on failure
  Documentation/sphinx: make targets independent of Sphinx work for HAVE_SPHINX=0
  doc-rst: fixed cleandoc target when used with O=dir
  Documentation/sphinx: prevent generation of .pyc files in the source tree
  ...
2017-02-22 18:51:29 -08:00
Hou Tao
7659c655be scripts/tags.sh: include arch/Kconfig* for tags generation
Kconfig files under arch/ directory are ignored by all_kconfigs(),
so include them for tags generation.

Link: http://lkml.kernel.org/r/1486206053-38223-1-git-send-email-houtao1@huawei.com
Signed-off-by: Hou Tao <houtao1@huawei.com>
Cc: Michal Marek <mmarek@suse.com>
Cc: Joe Perches <joe@perches.com>
Cc: Mathieu Maret <mathieu.maret@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-22 16:41:26 -08:00
Cheah Kok Cheong
8087a5609d scripts/checkincludes.pl: add exit message for no duplicates found
If no duplicates found, inform user.

Link: http://lkml.kernel.org/r/1486391275-2843-1-git-send-email-thrust73@gmail.com
Signed-off-by: Cheah Kok Cheong <thrust73@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-22 16:41:26 -08:00
Tobias Klauser
0e5a47a8d3 scripts/checkstack.pl: add support for nios2
Adjust checkstack.pl for the nios2 architecture.

Link: http://lkml.kernel.org/r/20170116113052.15034-1-tklauser@distanz.ch
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Cc: Ley Foon Tan <lftan@altera.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-22 16:41:26 -08:00
Jean Delvare
78c5250296 scripts/Lindent: clean up and optimize
* Add a few blank lines to improve readability.
* Don't call cut 3 times when once is enough.
* Drop a useless semicolon.

Link: http://lkml.kernel.org/r/20170104140356.162abab2@endymion
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-22 16:41:26 -08:00
Ross Zwisler
10f24f75b3 scripts/spelling.txt: fix incorrect typo-words
Fix up some incorrect typo-words.

[akpm@linux-foundation.org: "licencing" is valid British spelling and should be kept, per Joe]
Link: http://lkml.kernel.org/r/1486409689-23335-1-git-send-email-ross.zwisler@linux.intel.com
Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-22 16:41:26 -08:00
Colin Ian King
8c32002657 scripts/spelling.txt: add several more common spelling mistakes
Lately I've been cleaning up spelling mistakes in kernel error messages
and here are some of the more common spelling mistakes that I've found
which probably should be added to this list so we don't keep on seeing
them appearing again.

Link: http://lkml.kernel.org/r/20161209173326.17662-1-colin.king@canonical.com
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-22 16:41:26 -08:00
Linus Torvalds
e30aee9e10 char/misc driver patches for 4.11-rc1
Here is the big char/misc driver patchset for 4.11-rc1.
 
 Lots of different driver subsystems updated here.  Rework for the hyperv
 subsystem to handle new platforms better, mei and w1 and extcon driver
 updates, as well as a number of other "minor" driver updates.  Full
 details are in the shortlog below.
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver updates from Greg KH:
 "Here is the big char/misc driver patchset for 4.11-rc1.

  Lots of different driver subsystems updated here: rework for the
  hyperv subsystem to handle new platforms better, mei and w1 and extcon
  driver updates, as well as a number of other "minor" driver updates.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'char-misc-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (169 commits)
  goldfish: Sanitize the broken interrupt handler
  x86/platform/goldfish: Prevent unconditional loading
  vmbus: replace modulus operation with subtraction
  vmbus: constify parameters where possible
  vmbus: expose hv_begin/end_read
  vmbus: remove conditional locking of vmbus_write
  vmbus: add direct isr callback mode
  vmbus: change to per channel tasklet
  vmbus: put related per-cpu variable together
  vmbus: callback is in softirq not workqueue
  binder: Add support for file-descriptor arrays
  binder: Add support for scatter-gather
  binder: Add extra size to allocator
  binder: Refactor binder_transact()
  binder: Support multiple /dev instances
  binder: Deal with contexts in debugfs
  binder: Support multiple context managers
  binder: Split flat_binder_object
  auxdisplay: ht16k33: remove private workqueue
  auxdisplay: ht16k33: rework input device initialization
  ...
2017-02-22 11:38:22 -08:00
Linus Torvalds
38705613b7 powerpc updates for 4.11 part 1.
Highlights include:
 
  - Support for direct mapped LPC on POWER9, giving Linux direct access to
    devices that may be on there such as a UART.
 
  - Memory hotplug support for the Power9 Radix MMU.
 
  - Add new AUX vectors describing the processor's cache geometry, to be used by
    glibc.
 
  - The ability for a guest to ask the hypervisor to resize the guest's hash
    table, and in addition support for doing so automatically when memory is
    hotplugged into/out-of the guest. This allows the hash table to be sized
    based on the current memory usage of the guest, rather than the maximum
    possible memory usage.
 
  - Implementation of optprobes (kprobe optimisation) for powerpc.
 
 In addition there's the topic branch shared with the KVM tree, which includes
 support for guests to use the Radix MMU on Power9.
 
 Thanks to:
   Alistair Popple, Andrew Donnellan, Aneesh Kumar K.V, Anju T, Anton Blanchard,
   Benjamin Herrenschmidt, Chris Packham, Daniel Axtens, Daniel Borkmann, David
   Gibson, Finn Thain, Gautham R. Shenoy, Gavin Shan, Greg Kurz, Joel Stanley,
   John Allen, Madhavan Srinivasan, Mahesh Salgaonkar, Markus Elfring, Michael
   Neuling, Nathan Fontenot, Naveen N. Rao, Nicholas Piggin, Paul Mackerras, Ravi
   Bangoria, Reza Arbab, Shailendra Singh, Vaibhav Jain, Wei Yongjun.
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Merge tag 'powerpc-4.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Michael Ellerman:
 "Highlights include:

   - Support for direct mapped LPC on POWER9, giving Linux direct access
     to devices that may be on there such as a UART.

   - Memory hotplug support for the Power9 Radix MMU.

   - Add new AUX vectors describing the processor's cache geometry, to
     be used by glibc.

   - The ability for a guest to ask the hypervisor to resize the guest's
     hash table, and in addition support for doing so automatically when
     memory is hotplugged into/out-of the guest. This allows the hash
     table to be sized based on the current memory usage of the guest,
     rather than the maximum possible memory usage.

   - Implementation of optprobes (kprobe optimisation) for powerpc.

  In addition there's the topic branch shared with the KVM tree, which
  includes support for guests to use the Radix MMU on Power9.

  Thanks to:
    Alistair Popple, Andrew Donnellan, Aneesh Kumar K.V, Anju T, Anton
    Blanchard, Benjamin Herrenschmidt, Chris Packham, Daniel Axtens,
    Daniel Borkmann, David Gibson, Finn Thain, Gautham R. Shenoy, Gavin
    Shan, Greg Kurz, Joel Stanley, John Allen, Madhavan Srinivasan,
    Mahesh Salgaonkar, Markus Elfring, Michael Neuling, Nathan Fontenot,
    Naveen N. Rao, Nicholas Piggin, Paul Mackerras, Ravi Bangoria, Reza
    Arbab, Shailendra Singh, Vaibhav Jain, Wei Yongjun"

* tag 'powerpc-4.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (129 commits)
  powerpc/mm/radix: Skip ptesync in pte update helpers
  powerpc/mm/radix: Use ptep_get_and_clear_full when clearing pte for full mm
  powerpc/mm/radix: Update pte update sequence for pte clear case
  powerpc/mm: Update PROTFAULT handling in the page fault path
  powerpc/xmon: Fix data-breakpoint
  powerpc/mm: Fix build break with BOOK3S_64=n and MEMORY_HOTPLUG=y
  powerpc/mm: Fix build break when CMA=n && SPAPR_TCE_IOMMU=y
  powerpc/mm: Fix build break with RADIX=y & HUGETLBFS=n
  powerpc/pseries: Fix typo in parameter description
  powerpc/kprobes: Remove kprobe_exceptions_notify()
  kprobes: Introduce weak variant of kprobe_exceptions_notify()
  powerpc/ftrace: Fix confusing help text for DISABLE_MPROFILE_KERNEL
  powerpc/powernv: Fix opal_exit tracepoint opcode
  powerpc: Add a prototype for mcount() so it can be versioned
  powerpc: Drop GPL from of_node_to_nid() export to match other arches
  powerpc/kprobes: Optimize kprobe in kretprobe_trampoline()
  powerpc/kprobes: Implement Optprobes
  powerpc/kprobes: Fixes for kprobe_lookup_name() on BE
  powerpc: Add helper to check if offset is within relative branch range
  powerpc/bpf: Introduce __PPC_SH64()
  ...
2017-02-22 10:30:38 -08:00
Linus Torvalds
1e74a2eb1f Updates to the gcc-plugins:
- infrastructure updates (gcc-common.h)
 - introduce structleak plugin for forced initialization of some structures
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Merge tag 'gcc-plugins-v4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull gcc-plugins updates from Kees Cook:
 "This includes infrastructure updates and the structleak plugin, which
  performs forced initialization of certain structures to avoid possible
  information exposures to userspace.

  Summary:

   - infrastructure updates (gcc-common.h)

   - introduce structleak plugin for forced initialization of some
     structures"

* tag 'gcc-plugins-v4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  gcc-plugins: Add structleak for more stack initialization
  gcc-plugins: consolidate on PASS_INFO macro
  gcc-plugins: add PASS_INFO and build_const_char_string()
2017-02-22 09:05:47 -08:00
Kees Cook
c054ee3bbf Merge branch 'for-next/gcc-plugin/structleak' into for-linus/gcc-plugins 2017-02-21 21:12:57 -08:00
Linus Torvalds
0f002fddbe MIPS changes for v4.11
Miscellaneous:
  - Add IRQ stacks
  - Add cacheinfo support
  - Add "uzImage.bin" zboot target
  - Unify performance counter definitions
  - Export various (mainly assembly) symbols alongside their
    definitions
  - Audit and remove unnecessary uses of module.h
 
 kexec & kdump:
  - Lots of improvements and fixes
  - Add correct copy_regs implementations
  - Add debug logging of new kernel information
 
 Security:
  - Use Makefile.postlink to insert relocations into vmlinux
  - Provide plat_post_relocation hook (used for Octeon KASLR)
  - Add support for tuning mmap randomisation
  - Relocate DTB
 
 microMIPS:
  - A load of unwind fixes
  - Add some missing .insn to fix link errors
 
 MIPSr6:
  - Fix MULTU/MADDU/MSUBU sign extension in r2 emulation
  - Remove r2_emul_return and use ERETNC unconditionally on MIPSr6
  - Allow pre-r6 emulation on SMP MIPSr6 kernels
 
 Cache management:
  - Treat physically indexed dcache as non-aliasing
  - Add return errors to protected cache ops for KVM
  - CM3: Ensure L1 & L2 cache ECC checking matches
  - CM3: Indicate inclusive caches
  - I6400: Treat dcache as physically indexed
 
 Memory management:
  - Ensure bootmem doesn't corrupt reserved memory
  - Export some TLB exception generation functions for KVM
 
 OF
  - NULL check initial_boot_params before use in of_scan_flat_dt()
  - Fix unaligned access in of_alias_scan()
 
 SMP:
  - CPS: Don't BUG if a CPU fails to start
 
 Other fixes
  - Fix longstanding 64-bit IP checksum carry bug
  - Fix KERN_CONT fallout in cpu-bugs64.c and sync-r4k.c
  - Update defconfigs for NF_CT_PROTO_DCCP, DPLITE,
    CPU_FREQ_STAT,SCSI_DH changes
  - Disable certain builtin compiler options, stack-check (whole
    kernel), asynchronous-unwind-tables (VDSO).
  - A bunch of build fixes from kernelci.org testing
  - Various other minor cleanups & corrections
 
 BMIPS:
  - Migrate interrupts during bmips_cpu_disable
  - BCM47xx: Add Luxul devices
  - BCM47xx: Fix Asus WL-500W button inversion
  - BCM7xxx: Add SPI device nodes
 
 Generic (multiplatform):
  - Add kexec DTB passing
  - Fix big endian
  - Add cpp_its_S in ksym_dep_filter to silence build warning
 
 IP22:
  - Reformat inline assembler code to modern standards
  - Fix binutils 2.25 build error
 
 IP27:
  - Fix duplicate CAC_BASE definition build error
  - Disable qlge driver to workaround broken compiler
 
 Lantiq:
  - Refresh defconfig and activate more drivers
  - Lock DMA register access
  - Fix cascading IRQ setup
  - Fix build of VPE loader
  - xway: Fix ethernet packet header corruption over reboot
 
 Loongson1
  - Add watchdog support
  - 1B: Reduce DEFAULT_MEMSIZE to 64MB
  - 1B: Change OSC clock name to match rest of kernel
  - 1C: Remove ARCH_WANT_OPTIONAL_GPIOLIB
 
 Octeon:
  - Add KASLR support
  - Support Octeon III USB controller
  - Fix large copy_from_user corner case
  - Enable devtmpfs in defconfig
 
 Netlogic:
  - Fix non-default XLR build error due to netlogic,xlp-pic code
  - Fix assembler warning from smpboot.S
 
 pic32mzda:
  - Fix linker error when early printk is disabled
 
 Pistachio:
  - Add base device tree
  - Add Ci40 "Marduk" device tree
 
 Ralink:
  - Support raw appended DTB
  - Add missing I2C & I2S clocks
  - Add missing pinmux and fix pinmux function name typo
  - Add missing clk_round_rate()
  - Clean up prom_init()
  - MT7621: Set SoC type
  - MT7621: Support highmem
 
 TXx9:
  - Modernize printing of kernel messages and resolve KERN_CONT fallout
  - 7segled: use permission-specific DEVICE_ATTR variants
 
 XilFPGA:
  - Add IRQ controller and UART IRQ
  - Add AXI I2C and emaclite to DT & defconfig
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Merge tag 'mips_4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/mips

Pull MIPS updates from James Hogan:
 "Here's the main MIPS pull request for 4.11.

  It contains a few new features such as IRQ stacks, cacheinfo support,
  and KASLR for Octeon CPUs, and a variety of smaller improvements and
  fixes including devicetree additions, kexec cleanups, microMIPS stack
  unwinding fixes, and a bunch of build fixes to clean up continuous
  integration builds.

  Its all been in linux-next for at least a couple of days, most of it
  far longer.

  Miscellaneous:
   - Add IRQ stacks
   - Add cacheinfo support
   - Add "uzImage.bin" zboot target
   - Unify performance counter definitions
   - Export various (mainly assembly) symbols alongside their
     definitions
   - Audit and remove unnecessary uses of module.h

  kexec & kdump:
   - Lots of improvements and fixes
   - Add correct copy_regs implementations
   - Add debug logging of new kernel information

  Security:
   - Use Makefile.postlink to insert relocations into vmlinux
   - Provide plat_post_relocation hook (used for Octeon KASLR)
   - Add support for tuning mmap randomisation
   - Relocate DTB

  microMIPS:
   - A load of unwind fixes
   - Add some missing .insn to fix link errors

  MIPSr6:
   - Fix MULTU/MADDU/MSUBU sign extension in r2 emulation
   - Remove r2_emul_return and use ERETNC unconditionally on MIPSr6
   - Allow pre-r6 emulation on SMP MIPSr6 kernels

  Cache management:
   - Treat physically indexed dcache as non-aliasing
   - Add return errors to protected cache ops for KVM
   - CM3: Ensure L1 & L2 cache ECC checking matches
   - CM3: Indicate inclusive caches
   - I6400: Treat dcache as physically indexed

  Memory management:
   - Ensure bootmem doesn't corrupt reserved memory
   - Export some TLB exception generation functions for KVM

  OF:
   - NULL check initial_boot_params before use in of_scan_flat_dt()
   - Fix unaligned access in of_alias_scan()

  SMP:
   - CPS: Don't BUG if a CPU fails to start

  Other fixes:
   - Fix longstanding 64-bit IP checksum carry bug
   - Fix KERN_CONT fallout in cpu-bugs64.c and sync-r4k.c
   - Update defconfigs for NF_CT_PROTO_DCCP, DPLITE,
     CPU_FREQ_STAT,SCSI_DH changes
   - Disable certain builtin compiler options, stack-check (whole
     kernel), asynchronous-unwind-tables (VDSO).
   - A bunch of build fixes from kernelci.org testing
   - Various other minor cleanups & corrections

  BMIPS:
   - Migrate interrupts during bmips_cpu_disable
   - BCM47xx: Add Luxul devices
   - BCM47xx: Fix Asus WL-500W button inversion
   - BCM7xxx: Add SPI device nodes

  Generic (multiplatform):
   - Add kexec DTB passing
   - Fix big endian
   - Add cpp_its_S in ksym_dep_filter to silence build warning

  IP22:
   - Reformat inline assembler code to modern standards
   - Fix binutils 2.25 build error

  IP27:
   - Fix duplicate CAC_BASE definition build error
   - Disable qlge driver to workaround broken compiler

  Lantiq:
   - Refresh defconfig and activate more drivers
   - Lock DMA register access
   - Fix cascading IRQ setup
   - Fix build of VPE loader
   - xway: Fix ethernet packet header corruption over reboot

  Loongson1
   - Add watchdog support
   - 1B: Reduce DEFAULT_MEMSIZE to 64MB
   - 1B: Change OSC clock name to match rest of kernel
   - 1C: Remove ARCH_WANT_OPTIONAL_GPIOLIB

  Octeon:
   - Add KASLR support
   - Support Octeon III USB controller
   - Fix large copy_from_user corner case
   - Enable devtmpfs in defconfig

  Netlogic:
   - Fix non-default XLR build error due to netlogic,xlp-pic code
   - Fix assembler warning from smpboot.S

  pic32mzda:
   - Fix linker error when early printk is disabled

  Pistachio:
   - Add base device tree
   - Add Ci40 "Marduk" device tree

  Ralink:
   - Support raw appended DTB
   - Add missing I2C & I2S clocks
   - Add missing pinmux and fix pinmux function name typo
   - Add missing clk_round_rate()
   - Clean up prom_init()
   - MT7621: Set SoC type
   - MT7621: Support highmem

  TXx9:
   - Modernize printing of kernel messages and resolve KERN_CONT fallout
   - 7segled: use permission-specific DEVICE_ATTR variants

  XilFPGA:
   - Add IRQ controller and UART IRQ
   - Add AXI I2C and emaclite to DT & defconfig"

* tag 'mips_4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/mips: (148 commits)
  MIPS: VDSO: Explicitly use -fno-asynchronous-unwind-tables
  MIPS: BCM47XX: Fix button inversion for Asus WL-500W
  MIPS: DTS: Add img directory to Makefile
  MIPS: ip27: Disable qlge driver in defconfig
  MIPS: pic32mzda: Fix linker error for pic32_get_pbclk()
  MIPS: Lantiq: Keep ethernet enabled during boot
  MIPS: OCTEON: Fix copy_from_user fault handling for large buffers
  MIPS: Fix special case in 64 bit IP checksumming.
  MIPS: OCTEON: Enable DEVTMPFS
  MIPS: lantiq: Set physical_memsize
  MIPS: sysmips: Remove duplicated include from syscall.c
  Kbuild: Add cpp_its_S in ksym_dep_filter
  MIPS: Audit and remove any unnecessary uses of module.h
  MIPS: Unify perf counter register definitions
  MIPS: Disable stack checks on MIPS kernels
  MIPS: OCTEON: Platform support for OCTEON III USB controller
  MIPS: Lantiq: Fix cascaded IRQ setup
  MIPS: sync-r4k: Fix KERN_CONT fallout
  MIPS: IRQ Stack: Fix erroneous jal to plat_irq_dispatch
  MIPS: Fix distclean with Makefile.postlink
  ...
2017-02-21 14:21:11 -08:00
Linus Torvalds
c9341ee0af Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull security layer updates from James Morris:
 "Highlights:

   - major AppArmor update: policy namespaces & lots of fixes

   - add /sys/kernel/security/lsm node for easy detection of loaded LSMs

   - SELinux cgroupfs labeling support

   - SELinux context mounts on tmpfs, ramfs, devpts within user
     namespaces

   - improved TPM 2.0 support"

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (117 commits)
  tpm: declare tpm2_get_pcr_allocation() as static
  tpm: Fix expected number of response bytes of TPM1.2 PCR Extend
  tpm xen: drop unneeded chip variable
  tpm: fix misspelled "facilitate" in module parameter description
  tpm_tis: fix the error handling of init_tis()
  KEYS: Use memzero_explicit() for secret data
  KEYS: Fix an error code in request_master_key()
  sign-file: fix build error in sign-file.c with libressl
  selinux: allow changing labels for cgroupfs
  selinux: fix off-by-one in setprocattr
  tpm: silence an array overflow warning
  tpm: fix the type of owned field in cap_t
  tpm: add securityfs support for TPM 2.0 firmware event log
  tpm: enhance read_log_of() to support Physical TPM event log
  tpm: enhance TPM 2.0 PCR extend to support multiple banks
  tpm: implement TPM 2.0 capability to get active PCR banks
  tpm: fix RC value check in tpm2_seal_trusted
  tpm_tis: fix iTPM probe via probe_itpm() function
  tpm: Begin the process to deprecate user_read_timer
  tpm: remove tpm_read_index and tpm_write_index from tpm.h
  ...
2017-02-21 12:49:56 -08:00
Rafael J. Wysocki
eee77a8a0d Merge branch 'pm-tools'
* pm-tools:
  tools/power/x86: Debug utility for intel_pstate driver
  AnalyzeSuspend: fix drag and zoom bug in javascript
  scripts: analyze_suspend.py: Update to upstream v4.5
  scripts: analyze_suspend.py: Update to upstream v4.4
  scripts: analyze_suspend.py: Update to upstream v4.3
2017-02-20 14:26:34 +01:00
Todd E Brandt
b3fc275d54 AnalyzeSuspend: fix drag and zoom bug in javascript
Signed-off-by: Todd Brandt <todd.e.brandt@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-02-16 00:52:35 +01:00
Marcin Nowakowski
0d070d2b5c Kbuild: Add cpp_its_S in ksym_dep_filter
Add a new command cpp_its_S introduced in commit cf2a5e0bb4 ("MIPS:
Support generating Flattened Image Trees (.itb)") to ksym_dep_filter
handler - otherwise a warning is produced during the build of MIPS
platforms (when vmlinux.*.itb target is chosen).

Signed-off-by: Marcin Nowakowski <marcin.nowakowski@imgtec.com>
Cc: Michal Marek <mmarek@suse.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/15278/
Signed-off-by: James Hogan <james.hogan@imgtec.com>
2017-02-14 09:00:26 +00:00
Felix Fietkau
f86880175d sign-file: fix build error in sign-file.c with libressl
The sign-file tool failed to build against libressl. Fix this by extending
the PKCS7 check and thus making sign-file link against libressl without an
error.

Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
2017-02-10 12:43:47 +11:00
Greg Kroah-Hartman
17fa87fe5a Merge 4.10-rc7 into char-misc-next
We want the hv and other fixes in here as well to handle merge and
testing issues.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-06 09:39:13 +01:00
Ard Biesheuvel
56067812d5 kbuild: modversions: add infrastructure for emitting relative CRCs
This add the kbuild infrastructure that will allow architectures to emit
vmlinux symbol CRCs as 32-bit offsets to another location in the kernel
where the actual value is stored. This works around problems with CRCs
being mistaken for relocatable symbols on kernels that self relocate at
runtime (i.e., powerpc with CONFIG_RELOCATABLE=y)

For the kbuild side of things, this comes down to the following:

 - introducing a Kconfig symbol MODULE_REL_CRCS

 - adding a -R switch to genksyms to instruct it to emit the CRC symbols
   as references into the .rodata section

 - making modpost distinguish such references from absolute CRC symbols
   by the section index (SHN_ABS)

 - making kallsyms disregard non-absolute symbols with a __crc_ prefix

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-03 08:28:25 -08:00
Andrew Donnellan
65c059bcaa powerpc: Enable support for GCC plugins
Enable support for GCC plugins on powerpc.

Add an additional version check in gcc-plugins-check to advise users to
upgrade to gcc 5.2+ on powerpc to avoid issues with header files (gcc <=
4.6) or missing copies of rs6000-cpus.def (4.8 to 5.1 on 64-bit
targets).

Signed-off-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-02-03 21:59:28 +11:00
Andrew Donnellan
7b4010edff gcc-plugins: Fix definition of DISABLE_LATENT_ENTROPY_PLUGIN
The variable DISABLE_LATENT_ENTROPY_PLUGIN is defined when
CONFIG_PAX_LATENT_ENTROPY is set. This is leftover from the original PaX
version of the plugin code and doesn't actually exist. Change the condition
to depend on CONFIG_GCC_PLUGIN_LATENT_ENTROPY instead.

Fixes: 38addce8b6 ("gcc-plugins: Add latent_entropy plugin")
Signed-off-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-02-03 21:59:27 +11:00
Valentin Rothberg
3b28f4f2c2 checkkconfigsymbols.py: support Kconfig's 'imply' statement
Support the new imply statement in Kconfig.  The imply statement has
been added by commit 237e3ad0f1 ("Kconfig: Introduce the "imply"
keyword") and is a weak version of a select, but the target symbol can
still be turned off.

Signed-off-by: Andreas Ziegler <andreas.ziegler@fau.de>
Signed-off-by: Valentin Rothberg <valentinrothberg@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-03 11:49:06 +01:00
Todd E Brandt
03bc39beb7 scripts: analyze_suspend.py: Update to upstream v4.5
- Kernel errors shown in timeline
- Tool log: The tool output log is now available in the html timeline
- Selective ftrace filter: can choose phase and test run (for x2)
- further instrumentation of dev mode to cover wifi

Signed-off-by: Todd Brandt <todd.e.brandt@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-01-27 11:25:36 +01:00
Todd E Brandt
1ea39643b6 scripts: analyze_suspend.py: Update to upstream v4.4
- when running with sudo, change output dir back to SUDO_USER ownership
- replace all os.system/popen instances with subprocess.call/Popen
- graph pm device callbacks and async threads in separate sections
- remove kprobe config section and replaced it with timeline_functions
- added new kprobe config section for dev mode: dev_timeline_functions
- merge call loops in dev mode to create a single event with a count
- added hover text to all header entries to explain what they mean
- changed the -filter option to grep device driver/name for a string
- added new options for tuning the dev mode timeline/custom kprobes

Signed-off-by: Todd Brandt <todd.e.brandt@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-01-27 11:25:35 +01:00
Todd E Brandt
203f1f986a scripts: analyze_suspend.py: Update to upstream v4.3
- config file support added
- dev mode for monitoring kernel source calls and async kernel threads
- custom command support for executing a user cmd instead of suspend
- proc mode support for monitoring user processes with cpu exec data
- kprobe support for custom function tracing
- advanced callgraph support for function debug
- many bug fixes and formatting upgrades

Signed-off-by: Todd Brandt <todd.e.brandt@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-01-27 11:25:35 +01:00
Matthew Wilcox
5a0bc578e0 kernel-doc: Handle returning pointers to pointers
Clearly nobody ever tried to build the documentation for the radix tree
before:

include/linux/radix-tree.h:400: warning: cannot understand function
prototype: 'void ** radix_tree_iter_init(struct radix_tree_iter *iter,
unsigned long start) '

Indeed, the regexes only handled a single '*', not one-or-more.  I have
tried to fix that, but now I have perl regexes all over my hands, and
I fear I shall never be clean again.

Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-01-26 15:20:10 -07:00
Valentin Rothberg
8e8e333179 checkkconfigsymbols.py: don't sort similar symbols
Don't sort the list of string-similar Kconfig symbols alphabetically to
preserve the correct order of string similarity.

Signed-off-by: Valentin Rothberg <valentinrothberg@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-19 11:28:31 +01:00
Kees Cook
c61f13eaa1 gcc-plugins: Add structleak for more stack initialization
This plugin detects any structures that contain __user attributes and
makes sure it is being fully initialized so that a specific class of
information exposure is eliminated. (This plugin was originally designed
to block the exposure of siginfo in CVE-2013-2141.)

Ported from grsecurity/PaX. This version adds a verbose option to the
plugin and the Kconfig.

Signed-off-by: Kees Cook <keescook@chromium.org>
2017-01-18 12:02:35 -08:00
Kees Cook
5a45a4c5c3 gcc-plugins: consolidate on PASS_INFO macro
Now that PASS_INFO() exists, use it in the other existing gcc plugins,
instead of always open coding the same thing.

Based on updates to the grsecurity/PaX gcc plugins.

Signed-off-by: Kees Cook <keescook@chromium.org>
2017-01-13 14:20:03 -08:00
Gabriel Krisman Bertazi
ada5f446bb kernel-doc: properly document array arguments of function
Documentation for array parameters passed in a function, like the first
argument in the function below, weren't getting exported in the rst
format, although they work fine for html and pdf formats:

  void drm_clflush_pages(struct page * pages[], unsigned long num_pages)

That's because the string key to store the description in the
parameterdescs dictionary doesn't have the [] suffix.  This cleans up
the suffix from the key before accessing the dictionary.

Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
Fixes: c0d1b6ee78 ("kernel-doc: produce RestructuredText output")
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-01-13 10:53:24 -07:00
Kees Cook
8d4973a1c0 gcc-plugins: add PASS_INFO and build_const_char_string()
This updates the GCC plugins gcc-common.h from PaX Team to include
more helpers and header files, specifically adds the PASS_INFO()
macro to make plugin declarations nicer and a helper for proper
const string building.

Signed-off-by: Kees Cook <keescook@chromium.org>
2017-01-10 16:50:57 -08:00
Michal Marek
fde42bfcd2 genksyms: Regenerate parser
Regenerate the parser after d920f7c662 ("genksyms: Fix segfault with
invalid declarations").

Reported-and-tested-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Michal Marek <mmarek@suse.com>
2017-01-05 13:01:13 +01:00
Michal Marek
d920f7c662 genksyms: Fix segfault with invalid declarations
Do not try to recover too early and segfault when parsing invalid
declarations such as

echo 'int (int);' | scripts/genksyms/genksyms
echo 'int a, (int);' | scripts/genksyms/genksyms
echo 'extern void *__inline_memcpy((void *), (const void *), (__kernel_size_t));' | scripts/genksyms/genksyms

The last one was a real-life bug with
include/asm-generic/asm-prototypes.h on x86_64.

Reported-and-tested-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Michal Marek <mmarek@suse.com>
2017-01-05 13:00:54 +01:00
Paolo Bonzini
df31175bb4 kernel-doc: make highlights more homogenous for the various backends
$type_struct_full and friends are only used by the restructuredText
backend, because it needs to separate enum/struct/typedef/union from
the name of the type.  However, $type_struct is *also* used by the rST
backend.  This is confusing.

This patch replaces $type_struct's use in the rST backend with a new
$type_fallback; it modifies $type_struct so that it can be used in the
rST backend; and creates regular expressions like $type_struct
for enum/typedef/union, for use in all backends.

Note that, compared to $type_*_full, in the new regexes $1 includes both
the "kind" and the name (before, $1 was pretty much a constant).

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-01-04 15:08:14 -07:00
Paolo Bonzini
5267dd354b kernel-doc: make member highlighting available in all backends
Note that, in order to produce the correct Docbook markup, the "." or "->"
must be separated from the member name in the regex's captured fields.  For
consistency, this change is applied to $type_member and $type_member_func
too, not just to $type_member_xml.

List mode only prints the struct name, to avoid any undesired change in
the operation of docproc.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-01-04 15:08:03 -07:00
Paolo Bonzini
fc6d7af89f kernel-doc: include parameter type in docbook output
The restructuredText output includes both the parameter type and
the name for functions and function-typed members.  Do the same
for docbook.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-01-04 15:07:53 -07:00
Paolo Bonzini
b1aaa546b5 kernel-doc: strip attributes even if they have an argument
An inline function can have an attribute, as in include/linux/log2.h,
and kernel-doc handles this already for simple cases.  However,
some attributes have arguments (e.g. the "target" attribute).
Handle those too.

Furthermore, attributes could be at the beginning of a function
declaration, before the return type.  To correctly handle this case,
you need to strip spaces after the attributes; otherwise, dump_function
is left confused.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-01-04 15:07:42 -07:00
Paolo Bonzini
02a4f4fe52 kernel-doc: cleanup parameter type in function-typed arguments
A prototype like

    /**
     * foo - sample definition
     * @bar: a parameter
     */
    int foo(int (*bar)(int x,
                       int y));

is currently producing

    .. c:function:: int foo (int (*bar) (int x,                    int y)

       sample definition

    **Parameters**

    ``int (*)(int x,                    int y) bar``
      a parameter

Collapse the spaces so that the output is nicer.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-01-04 15:07:23 -07:00
Rob Herring
6f05afcbb0 scripts/dtc: Update to upstream version 0931cea3ba20
Sync to upstream dtc commit 0931cea3ba20 ("dtc: fdtdump: check fdt if
not in scanning mode"). In particular, this pulls in dtc overlay
support.

This adds the following commits from upstream:

f88865469b65 dtc: Fix memory leak in character literal parsing
00fbb8696b66 Rename boot_info
1ef86ad2c24f dtc: Clean up /dts-v1/ and /plugin/ handling in grammar
e3c769aa9c16 dtc: Don't always generate __symbols__ for plugins
c96cb3c0169e tests: Don't use -@ on plugin de/recompile tests
66381538ce24 tests: Remove "suppression of fixups" tests
ba765b273f0f tests: Clarify dtc overlay tests
6ea8cd944fcd tests: More thorough tests of libfdt overlay application without dtc
7d8ef6e1db97 tests: Correct fdt handling of overlays without fixups and base trees without symbols
b4dc0ed8b127 tests: Fix double expansion bugs in test code
3ea879dc0c8f tests: Split overlay tests into those with do/don't exercise dtc plugin generation
47b4d66a2f11 tests: Test auto-alias generation on base tree, not overlay
72e1ad811523 tests: Make overlay/plugin tests unconditional
e7b3c3b5951b tests: Add overlay tests
9637e3f772a9 tests: Add check_path test
20f29d8d41f6 dtc: Plugin and fixup support
a2c92cac53f8 dtc: Document the dynamic plugin internals
8f70ac39801d checks: Pass boot_info instead of root node
ea10f953878f libfdt: add missing errors to fdt_strerror()
daa75e8fa594 libfdt: fix fdt_stringlist_search()
e28eff5b787a libfdt: fix fdt_stringlist_count()
ae97c7722840 tests: overlay: Rename the device tree blobs to be more explicit
96162d2bd9cb tests: overlay: Add test suffix to the compiled blobs
5ce8634733b7 libfdt: Add fdt_overlay_apply to the exported symbols
804a9db90ad2 fdt: strerr: Remove spurious BADOVERLAY
e8c3a1a493fa tests: overlay: Move back the bad fixup tests
7a72d89d3f81 libfdt: overlay: Fix symbols and fixups nodes condition
cabbaa972cdd libfdt: overlay: Report a bad overlay for mismatching local fixups
deb0a5c1aeaa libfdt: Add BADPHANDLE error string
7b7a6be9ba15 libfdt: Don't use 'index' as a local variable name
aea8860d831e tests: Add tests cases for the overlay code
0cdd06c5135b libfdt: Add overlay application function
39240cc865cf libfdt: Extend the reach of FDT_ERR_BADPHANDLE
4aa3a6f5e6d9 libfdt: Add new errors for the overlay code
6d1832c9e64b dtc: Remove "home page" link
45fd440a9561 Fix some typing errors in libfdt.h and livetree.c
a59be4939c13 Merge tag 'v1.4.2'
a34bb721caca dtc: Fix assorted problems in the testcases for the -a option
874f40588d3e Implement the -a option to pad dtb aligned
ec02b34c05be dtc: Makefile improvements for release uploading
1ed45d40a137 dtc: Bump version to 1.4.2
36fd7331fb11 libfdt: simplify fdt_del_mem_rsv()
d877364e4a0f libfdt: Add fdt_setprop_inplace_namelen_partial
3e9037aaad44 libfdt: Add fdt_getprop_namelen_w
84e0e1346c68 libfdt: Add max phandle retrieval function
d29126c90acb libfdt: Add iterator over properties
902d0f0953d0 libfdt: Add a subnodes iterator macro
c539075ba8ba fdtput.c: Fix memory leak.
f79ddb83e185 fdtget.c: Fix memory leak
1074ee54b63f convert-dtsv0-lexer.l: fix memory leak
e24d39a024e6 fdtdump.c: make sure size_t argument to memchr is always unsigned.
44a59713cf05 Remove unused srcpos_dump() function
cb9241ae3453 DTC: Fix memory leak on flatname.
1ee0ae24ea09 Simplify check field and macro names
9d97527a8621 Remove property check functions
2e709d158e11 Remove tree check functions
c4cb12e193e3 Alter grammar to allow multiple /dts-v1/ tags
d71d25d76012 Use xasprintf() in srcpos
9dc404958e9c util: Add xasprintf portable asprintf variant
beef80b8b55f Correct a missing space in a fdt_header cast
68d43cec1253 Correct line lengths in libfdt.h
b0dbceafd49a Correct space-after-tab in libfdt.h

Signed-off-by: Rob Herring <robh@kernel.org>
2017-01-04 10:47:53 -06:00
Kees Cook
81d873a871 gcc-plugins: update gcc-common.h for gcc-7
This updates gcc-common.h from Emese Revfy for gcc 7. This fixes issues seen
by Kugan and Arnd. Build tested with gcc 5.4 and 7 snapshot.

Cc: stable@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
2017-01-03 12:08:59 -08:00
Kees Cook
9988f4d577 latent_entropy: fix ARM build error on earlier gcc
This fixes build errors seen on gcc-4.9.3 or gcc-5.3.1 for an ARM:

arm-soc/init/initramfs.c: In function 'error':
arm-soc/init/initramfs.c:50:1: error: unrecognizable insn:
 }
 ^
(insn 26 25 27 5 (set (reg:SI 111 [ local_entropy.243 ])
        (rotatert:SI (reg:SI 116 [ local_entropy.243 ])
            (const_int -30 [0xffffffffffffffe2]))) -1
     (nil))

Patch from PaX Team <pageexec@freemail.hu>

Reported-by: Arnd Bergmann <arnd@arndb.de>
Reported-by: Brad Spengler <spender@grsecurity.net>
Cc: stable@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
2017-01-03 12:08:59 -08:00
Linus Torvalds
67327145c4 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull SElinux fix from James Morris:
 "From Paul:
   'A small SELinux patch to fix some clang/llvm compiler warnings and
    ensure the tools under scripts work well in the face of kernel
    changes'"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
  selinux: use the kernel headers when building scripts/selinux
2016-12-22 10:03:52 -08:00
Paul Moore
bfc5e3a6af selinux: use the kernel headers when building scripts/selinux
Commit 3322d0d64f ("selinux: keep SELinux in sync with new capability
definitions") added a check on the defined capabilities without
explicitly including the capability header file which caused problems
when building genheaders for users of clang/llvm.  Resolve this by
using the kernel headers when building genheaders, which is arguably
the right thing to do regardless, and explicitly including the
kernel's capability.h header file in classmap.h.  We also update the
mdp build, even though it wasn't causing an error we really should
be using the headers from the kernel we are building.

Reported-by: Nicolas Iooss <nicolas.iooss@m4x.org>
Signed-off-by: Paul Moore <paul@paul-moore.com>
2016-12-21 10:39:25 -05:00
Linus Torvalds
135c919758 Merge branch 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Pull kbuild misc updates from Michal Marek:

 - one new coccinelle check and improvements to irqf_oneshot.cocci

 - 'make rpm' POSIX compatibility fix

 - 'make deb-pkg' arm64 cross-compiling fix. I forgot to send this one
   during the v4.9 rc-phase, therefor the pull request is based on -rc6
   and not -rc1

* 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  Coccinelle: misc: Add support for devm variant in all modes
  Coccinelle: misc: Improve the result given by context mode
  Coccinelle: misc: Improve the matching of rules
  kbuild/mkspec: avoid using brace expansion
  Coccinelle: Add misc/boolconv.cocci
  builddeb: fix cross-building to arm64 producing host-arch debs
2016-12-17 16:32:27 -08:00
Linus Torvalds
37861ffa8c Merge branch 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Pull kconfig updates from Michal Marek:

 - 'make xconfig' gui fixes

 - 'make nconfig' fix for options with long prompts

 - fix 'make nconfig' warning when pkg-config forces -D_GNU_SOURCE

* 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  xconfig: fix missing suboption and help panels on first run
  xconfig: fix 'Show Debug' functionality
  kconfig/nconf: Fix hang when editing symbol with a long prompt
  Scripts: kconfig: nconf: fix _GNU_SOURCE redefined warning
2016-12-17 16:30:24 -08:00
Linus Torvalds
41e0e24b45 Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Pull kbuild updates from Michal Marek:

 - prototypes for x86 asm-exported symbols (Adam Borowski) and a warning
   about missing CRCs (Nick Piggin)

 - asm-exports fix for LTO (Nicolas Pitre)

 - thin archives improvements (Nick Piggin)

 - linker script fix for CONFIG_LD_DEAD_CODE_DATA_ELIMINATION (Nick
   Piggin)

 - genksyms support for __builtin_va_list keyword

 - misc minor fixes

* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  x86/kbuild: enable modversions for symbols exported from asm
  kbuild: fix scripts/adjust_autoksyms.sh* for the no modules case
  scripts/kallsyms: remove last remnants of --page-offset option
  make use of make variable CURDIR instead of calling pwd
  kbuild: cmd_export_list: tighten the sed script
  kbuild: minor improvement for thin archives build
  kbuild: modpost warn if export version crc is missing
  kbuild: keep data tables through dead code elimination
  kbuild: improve linker compatibility with lib-ksyms.o build
  genksyms: Regenerate parser
  kbuild/genksyms: handle va_list type
  kbuild: thin archives for multi-y targets
  kbuild: kallsyms allow 3-pass generation if symbols size has changed
2016-12-17 16:24:13 -08:00
Linus Torvalds
de399813b5 powerpc updates for 4.10
Highlights include:
 
  - Support for the kexec_file_load() syscall, which is a prereq for secure and
    trusted boot.
 
  - Prevent kernel execution of userspace on P9 Radix (similar to SMEP/PXN).
 
  - Sort the exception tables at build time, to save time at boot, and store
    them as relative offsets to save space in the kernel image & memory.
 
  - Allow building the kernel with thin archives, which should allow us to build
    an allyesconfig once some other fixes land.
 
  - Build fixes to allow us to correctly rebuild when changing the kernel endian
    from big to little or vice versa.
 
  - Plumbing so that we can avoid doing a full mm TLB flush on P9 Radix.
 
  - Initial stack protector support (-fstack-protector).
 
  - Support for dumping the radix (aka. Linux) and hash page tables via debugfs.
 
  - Fix an oops in cxl coredump generation when cxl_get_fd() is used.
 
  - Freescale updates from Scott: "Highlights include 8xx hugepage support,
    qbman fixes/cleanup, device tree updates, and some misc cleanup."
 
  - Many and varied fixes and minor enhancements as always.
 
 Thanks to:
   Alexey Kardashevskiy, Andrew Donnellan, Aneesh Kumar K.V, Anshuman Khandual,
   Anton Blanchard, Balbir Singh, Bartlomiej Zolnierkiewicz, Christophe Jaillet,
   Christophe Leroy, Denis Kirjanov, Elimar Riesebieter, Frederic Barrat,
   Gautham R. Shenoy, Geliang Tang, Geoff Levand, Jack Miller, Johan Hovold,
   Lars-Peter Clausen, Libin, Madhavan Srinivasan, Michael Neuling, Nathan
   Fontenot, Naveen N. Rao, Nicholas Piggin, Pan Xinhui, Peter Senna Tschudin,
   Rashmica Gupta, Rui Teng, Russell Currey, Scott Wood, Simon Guo, Suraj
   Jitindar Singh, Thiago Jung Bauermann, Tobias Klauser, Vaibhav Jain.
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Merge tag 'powerpc-4.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Michael Ellerman:
 "Highlights include:

   - Support for the kexec_file_load() syscall, which is a prereq for
     secure and trusted boot.

   - Prevent kernel execution of userspace on P9 Radix (similar to
     SMEP/PXN).

   - Sort the exception tables at build time, to save time at boot, and
     store them as relative offsets to save space in the kernel image &
     memory.

   - Allow building the kernel with thin archives, which should allow us
     to build an allyesconfig once some other fixes land.

   - Build fixes to allow us to correctly rebuild when changing the
     kernel endian from big to little or vice versa.

   - Plumbing so that we can avoid doing a full mm TLB flush on P9
     Radix.

   - Initial stack protector support (-fstack-protector).

   - Support for dumping the radix (aka. Linux) and hash page tables via
     debugfs.

   - Fix an oops in cxl coredump generation when cxl_get_fd() is used.

   - Freescale updates from Scott: "Highlights include 8xx hugepage
     support, qbman fixes/cleanup, device tree updates, and some misc
     cleanup."

   - Many and varied fixes and minor enhancements as always.

  Thanks to:
    Alexey Kardashevskiy, Andrew Donnellan, Aneesh Kumar K.V, Anshuman
    Khandual, Anton Blanchard, Balbir Singh, Bartlomiej Zolnierkiewicz,
    Christophe Jaillet, Christophe Leroy, Denis Kirjanov, Elimar
    Riesebieter, Frederic Barrat, Gautham R. Shenoy, Geliang Tang, Geoff
    Levand, Jack Miller, Johan Hovold, Lars-Peter Clausen, Libin,
    Madhavan Srinivasan, Michael Neuling, Nathan Fontenot, Naveen N.
    Rao, Nicholas Piggin, Pan Xinhui, Peter Senna Tschudin, Rashmica
    Gupta, Rui Teng, Russell Currey, Scott Wood, Simon Guo, Suraj
    Jitindar Singh, Thiago Jung Bauermann, Tobias Klauser, Vaibhav Jain"

[ And thanks to Michael, who took time off from a new baby to get this
  pull request done.   - Linus ]

* tag 'powerpc-4.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (174 commits)
  powerpc/fsl/dts: add FMan node for t1042d4rdb
  powerpc/fsl/dts: add sg_2500_aqr105_phy4 alias on t1024rdb
  powerpc/fsl/dts: add QMan and BMan nodes on t1024
  powerpc/fsl/dts: add QMan and BMan nodes on t1023
  soc/fsl/qman: test: use DEFINE_SPINLOCK()
  powerpc/fsl-lbc: use DEFINE_SPINLOCK()
  powerpc/8xx: Implement support of hugepages
  powerpc: get hugetlbpage handling more generic
  powerpc: port 64 bits pgtable_cache to 32 bits
  powerpc/boot: Request no dynamic linker for boot wrapper
  soc/fsl/bman: Use resource_size instead of computation
  soc/fsl/qe: use builtin_platform_driver
  powerpc/fsl_pmc: use builtin_platform_driver
  powerpc/83xx/suspend: use builtin_platform_driver
  powerpc/ftrace: Fix the comments for ftrace_modify_code
  powerpc/perf: macros for power9 format encoding
  powerpc/perf: power9 raw event format encoding
  powerpc/perf: update attribute_group data structure
  powerpc/perf: factor out the event format field
  powerpc/mm/iommu, vfio/spapr: Put pages on VFIO container shutdown
  ...
2016-12-16 09:26:42 -08:00
Linus Torvalds
ed3c5a0be3 virtio, vhost: new device, fixes, speedups
This includes the new virtio crypto device, and fixes all over the
 place.  In particular enabling endian-ness checks for sparse builds
 found some bugs which this fixes.  And it appears that everyone is in
 agreement that disabling endian-ness sparse checks shouldn't be
 necessary any longer.
 
 So this enables them for everyone, and drops __CHECK_ENDIAN__
 and __bitwise__ APIs.
 
 IRQ handling in virtio has been refactored somewhat, the
 larger switch to IRQ_SHARED will have to wait as
 it proved too aggressive.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

Pull virtio updates from Michael Tsirkin:
 "virtio, vhost: new device, fixes, speedups

  This includes the new virtio crypto device, and fixes all over the
  place. In particular enabling endian-ness checks for sparse builds
  found some bugs which this fixes. And it appears that everyone is in
  agreement that disabling endian-ness sparse checks shouldn't be
  necessary any longer.

  So this enables them for everyone, and drops the __CHECK_ENDIAN__ and
  __bitwise__ APIs.

  IRQ handling in virtio has been refactored somewhat, the larger switch
  to IRQ_SHARED will have to wait as it proved too aggressive"

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (34 commits)
  Makefile: drop -D__CHECK_ENDIAN__ from cflags
  fs/logfs: drop __CHECK_ENDIAN__
  Documentation/sparse: drop __CHECK_ENDIAN__
  linux: drop __bitwise__ everywhere
  checkpatch: replace __bitwise__ with __bitwise
  Documentation/sparse: drop __bitwise__
  tools: enable endian checks for all sparse builds
  linux/types.h: enable endian checks for all sparse builds
  virtio_mmio: Set dev.release() to avoid warning
  vhost: remove unused feature bit
  virtio_ring: fix description of virtqueue_get_buf
  vhost/scsi: Remove unused but set variable
  tools/virtio: use {READ,WRITE}_ONCE() in uaccess.h
  vringh: kill off ACCESS_ONCE()
  tools/virtio: fix READ_ONCE()
  crypto: add virtio-crypto driver
  vhost: cache used event for better performance
  vsock: lookup and setup guest_cid inside vhost_vsock_lock
  virtio_pci: split vp_try_to_find_vqs into INTx and MSI-X variants
  virtio_pci: merge vp_free_vectors into vp_del_vqs
  ...
2016-12-15 18:13:41 -08:00
Michael S. Tsirkin
46d832f5e2 checkpatch: replace __bitwise__ with __bitwise
__bitwise__ is an implementation detail now.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-12-16 00:13:40 +02:00
Linus Torvalds
179a7ba680 This release has a few updates:
o STM can hook into the function tracer
  o Function filtering now supports more advance glob matching
  o Ftrace selftests updates and added tests
  o Softirq tag in traces now show only softirqs
  o ARM nop added to non traced locations at compile time
  o New trace_marker_raw file that allows for binary input
  o Optimizations to the ring buffer
  o Removal of kmap in trace_marker
  o Wakeup and irqsoff tracers now adhere to the set_graph_notrace file
  o Other various fixes and clean ups
 
 Note, there are two patches marked for stable. These were discovered
 near the end of the 4.9 rc release cycle. By the time I had them tested
 it was just a matter of days before 4.9 would be released, and I
 figured I would just submit them in the merge window. They are old
 bugs and not critical. Nothing non-root could abuse.
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Merge tag 'trace-v4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing updates from Steven Rostedt:
 "This release has a few updates:

   - STM can hook into the function tracer
   - Function filtering now supports more advance glob matching
   - Ftrace selftests updates and added tests
   - Softirq tag in traces now show only softirqs
   - ARM nop added to non traced locations at compile time
   - New trace_marker_raw file that allows for binary input
   - Optimizations to the ring buffer
   - Removal of kmap in trace_marker
   - Wakeup and irqsoff tracers now adhere to the set_graph_notrace file
   - Other various fixes and clean ups"

* tag 'trace-v4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (42 commits)
  selftests: ftrace: Shift down default message verbosity
  kprobes/trace: Fix kprobe selftest for newer gcc
  tracing/kprobes: Add a helper method to return number of probe hits
  tracing/rb: Init the CPU mask on allocation
  tracing: Use SOFTIRQ_OFFSET for softirq dectection for more accurate results
  tracing/fgraph: Have wakeup and irqsoff tracers ignore graph functions too
  fgraph: Handle a case where a tracer ignores set_graph_notrace
  tracing: Replace kmap with copy_from_user() in trace_marker writing
  ftrace/x86_32: Set ftrace_stub to weak to prevent gcc from using short jumps to it
  tracing: Allow benchmark to be enabled at early_initcall()
  tracing: Have system enable return error if one of the events fail
  tracing: Do not start benchmark on boot up
  tracing: Have the reg function allow to fail
  ring-buffer: Force rb_end_commit() and rb_set_commit_to_write() inline
  ring-buffer: Froce rb_update_write_stamp() to be inlined
  ring-buffer: Force inline of hotpath helper functions
  tracing: Make __buffer_unlock_commit() always_inline
  tracing: Make tracepoint_printk a static_key
  ring-buffer: Always inline rb_event_data()
  ring-buffer: Make rb_reserve_next_event() always inlined
  ...
2016-12-15 13:49:34 -08:00
Linus Torvalds
19c75bcbe0 Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu:
 "This fixes the following issues:

   - a crash regression in the new skcipher walker

   - incorrect return value in public_key_verify_signature

   - fix for in-place signing in the sign-file utility"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: skcipher - fix crash in virtual walk
  sign-file: Fix inplace signing when src and dst names are both specified
  crypto: asymmetric_keys - set error code on failure
2016-12-15 11:41:37 -08:00
Linus Torvalds
4d98ead183 Modules updates for v4.10
Summary of modules changes for the 4.10 merge window:
 
 * The rodata= cmdline parameter has been extended to additionally
   apply to module mappings
 
 * Fix a hard to hit race between module loader error/clean up
   handling and ftrace registration
 
 * Some code cleanups, notably panic.c and modules code use a
   unified taint_flags table now. This is much cleaner than
   duplicating the taint flag code in modules.c
 
 Signed-off-by: Jessica Yu <jeyu@redhat.com>
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Merge tag 'modules-for-v4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux

Pull modules updates from Jessica Yu:
 "Summary of modules changes for the 4.10 merge window:

   - The rodata= cmdline parameter has been extended to additionally
     apply to module mappings

   - Fix a hard to hit race between module loader error/clean up
     handling and ftrace registration

   - Some code cleanups, notably panic.c and modules code use a unified
     taint_flags table now. This is much cleaner than duplicating the
     taint flag code in modules.c"

* tag 'modules-for-v4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux:
  module: fix DEBUG_SET_MODULE_RONX typo
  module: extend 'rodata=off' boot cmdline parameter to module mappings
  module: Fix a comment above strong_try_module_get()
  module: When modifying a module's text ignore modules which are going away too
  module: Ensure a module's state is set accordingly during module coming cleanup code
  module: remove trailing whitespace
  taint/module: Clean up global and module taint flags handling
  modpost: free allocated memory
2016-12-14 20:12:43 -08:00
Linus Torvalds
a9042defa2 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial updates from Jiri Kosina.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial:
  NTB: correct ntb_spad_count comment typo
  misc: ibmasm: fix typo in error message
  Remove references to dead make variable LINUX_INCLUDE
  Remove last traces of ikconfig.h
  treewide: Fix printk() message errors
  Documentation/device-mapper: s/getsize/getsz/
2016-12-14 11:12:25 -08:00
Alex Yashchenko
efcae7c931 sign-file: Fix inplace signing when src and dst names are both specified
When src and dst both are specified and they point to the same file
the sign-file utility will write only signature to the dst file and
the module (.ko file) body will not be written.
That happens because we open the same file with "rb" and "wb" flags,
from fopen man:

 w      Truncate file to zero length or create text file for writing.
The stream is positioned at the beginning of the file.
...
	bm = BIO_new_file(module_name, "rb");
...
	bd = BIO_new_file(dest_name, "wb");
...
	while ((n = BIO_read(bm, buf, sizeof(buf))),
	       n > 0) {
		ERR(BIO_write(bd, buf, n) < 0, "%s", dest_name);
	}
...

Signed-off-by: Alex Yashchenko <alexhoppus111@gmail.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-12-14 18:33:14 +08:00
Masanari Iida
9165dabb25 treewide: Fix printk() message errors
This patch fix spelling typos in printk and kconfig.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2016-12-14 10:54:27 +01:00
Linus Torvalds
b78b499a67 Char/Misc driver patches for 4.10-rc1
Here's the big char/misc driver patches for 4.10-rc1.  Lots of tiny
 changes over lots of "minor" driver subsystems, the largest being some
 new FPGA drivers.  Other than that, a few other new drivers, but no new
 driver subsystems added for this kernel cycle, a nice change.
 
 All of these have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver updates from Greg KH:
 "Here's the big char/misc driver patches for 4.10-rc1. Lots of tiny
  changes over lots of "minor" driver subsystems, the largest being some
  new FPGA drivers. Other than that, a few other new drivers, but no new
  driver subsystems added for this kernel cycle, a nice change.

  All of these have been in linux-next with no reported issues"

* tag 'char-misc-4.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (107 commits)
  uio-hv-generic: store physical addresses instead of virtual
  Tools: hv: kvp: configurable external scripts path
  uio-hv-generic: new userspace i/o driver for VMBus
  vmbus: add support for dynamic device id's
  hv: change clockevents unbind tactics
  hv: acquire vmbus_connection.channel_mutex in vmbus_free_channels()
  hyperv: Fix spelling of HV_UNKOWN
  mei: bus: enable non-blocking RX
  mei: fix the back to back interrupt handling
  mei: synchronize irq before initiating a reset.
  VME: Remove shutdown entry from vme_driver
  auxdisplay: ht16k33: select framebuffer helper modules
  MAINTAINERS: add git url for fpga
  fpga: Clarify how write_init works streaming modes
  fpga zynq: Fix incorrect ISR state on bootup
  fpga zynq: Remove priv->dev
  fpga zynq: Add missing \n to messages
  fpga: Add COMPILE_TEST to all drivers
  uio: pruss: add clk_disable()
  char/pcmcia: add some error checking in scr24x_read()
  ...
2016-12-13 12:11:01 -08:00
Linus Torvalds
e7aa8c2eb1 These are the documentation changes for 4.10.
It's another busy cycle for the docs tree, as the sphinx conversion
 continues.  Highlights include:
 
  - Further work on PDF output, which remains a bit of a pain but should be
    more solid now.
 
  - Five more DocBook template files converted to Sphinx.  Only 27 to go...
    Lots of plain-text files have also been converted and integrated.
 
  - Images in binary formats have been replaced with more source-friendly
    versions.
 
  - Various bits of organizational work, including the renaming of various
    files discussed at the kernel summit.
 
  - New documentation for the device_link mechanism.
 
 ...and, of course, lots of typo fixes and small updates.
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Merge tag 'docs-4.10' of git://git.lwn.net/linux

Pull documentation update from Jonathan Corbet:
 "These are the documentation changes for 4.10.

  It's another busy cycle for the docs tree, as the sphinx conversion
  continues. Highlights include:

   - Further work on PDF output, which remains a bit of a pain but
     should be more solid now.

   - Five more DocBook template files converted to Sphinx. Only 27 to
     go... Lots of plain-text files have also been converted and
     integrated.

   - Images in binary formats have been replaced with more
     source-friendly versions.

   - Various bits of organizational work, including the renaming of
     various files discussed at the kernel summit.

   - New documentation for the device_link mechanism.

  ... and, of course, lots of typo fixes and small updates"

* tag 'docs-4.10' of git://git.lwn.net/linux: (193 commits)
  dma-buf: Extract dma-buf.rst
  Update Documentation/00-INDEX
  docs: 00-INDEX: document directories/files with no docs
  docs: 00-INDEX: remove non-existing entries
  docs: 00-INDEX: add missing entries for documentation files/dirs
  docs: 00-INDEX: consolidate process/ and admin-guide/ description
  scripts: add a script to check if Documentation/00-INDEX is sane
  Docs: change sh -> awk in REPORTING-BUGS
  Documentation/core-api/device_link: Add initial documentation
  core-api: remove an unexpected unident
  ppc/idle: Add documentation for powersave=off
  Doc: Correct typo, "Introdution" => "Introduction"
  Documentation/atomic_ops.txt: convert to ReST markup
  Documentation/local_ops.txt: convert to ReST markup
  Documentation/assoc_array.txt: convert to ReST markup
  docs-rst: parse-headers.pl: cleanup the documentation
  docs-rst: fix media cleandocs target
  docs-rst: media/Makefile: reorganize the rules
  docs-rst: media: build SVG from graphviz files
  docs-rst: replace bayer.png by a SVG image
  ...
2016-12-12 21:58:13 -08:00
Linus Torvalds
e34bac726d Merge branch 'akpm' (patches from Andrew)
Merge updates from Andrew Morton:

 - various misc bits

 - most of MM (quite a lot of MM material is awaiting the merge of
   linux-next dependencies)

 - kasan

 - printk updates

 - procfs updates

 - MAINTAINERS

 - /lib updates

 - checkpatch updates

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (123 commits)
  init: reduce rootwait polling interval time to 5ms
  binfmt_elf: use vmalloc() for allocation of vma_filesz
  checkpatch: don't emit unified-diff error for rename-only patches
  checkpatch: don't check c99 types like uint8_t under tools
  checkpatch: avoid multiple line dereferences
  checkpatch: don't check .pl files, improve absolute path commit log test
  scripts/checkpatch.pl: fix spelling
  checkpatch: don't try to get maintained status when --no-tree is given
  lib/ida: document locking requirements a bit better
  lib/rbtree.c: fix typo in comment of ____rb_erase_color
  lib/Kconfig.debug: make CONFIG_STRICT_DEVMEM depend on CONFIG_DEVMEM
  MAINTAINERS: add drm and drm/i915 irc channels
  MAINTAINERS: add "C:" for URI for chat where developers hang out
  MAINTAINERS: add drm and drm/i915 bug filing info
  MAINTAINERS: add "B:" for URI where to file bugs
  get_maintainer: look for arbitrary letter prefixes in sections
  printk: add Kconfig option to set default console loglevel
  printk/sound: handle more message headers
  printk/btrfs: handle more message headers
  printk/kdb: handle more message headers
  ...
2016-12-12 20:50:02 -08:00
Joe Perches
fe6bce8d30 treewide: Make remaining source files non-executable
.c and .h source files should not be executable, change
the permissions to 0644.

[ This would normally go through Andrew Morton, but his ancient
  patch-based toolchain doesn't do permission changes ]

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-12 20:41:52 -08:00
Linus Torvalds
9465d9cc31 Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer updates from Thomas Gleixner:
 "The time/timekeeping/timer folks deliver with this update:

   - Fix a reintroduced signed/unsigned issue and cleanup the whole
     signed/unsigned mess in the timekeeping core so this wont happen
     accidentaly again.

   - Add a new trace clock based on boot time

   - Prevent injection of random sleep times when PM tracing abuses the
     RTC for storage

   - Make posix timers configurable for real tiny systems

   - Add tracepoints for the alarm timer subsystem so timer based
     suspend wakeups can be instrumented

   - The usual pile of fixes and updates to core and drivers"

* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits)
  timekeeping: Use mul_u64_u32_shr() instead of open coding it
  timekeeping: Get rid of pointless typecasts
  timekeeping: Make the conversion call chain consistently unsigned
  timekeeping_Force_unsigned_clocksource_to_nanoseconds_conversion
  alarmtimer: Add tracepoints for alarm timers
  trace: Update documentation for mono, mono_raw and boot clock
  trace: Add an option for boot clock as trace clock
  timekeeping: Add a fast and NMI safe boot clock
  timekeeping/clocksource_cyc2ns: Document intended range limitation
  timekeeping: Ignore the bogus sleep time if pm_trace is enabled
  selftests/timers: Fix spelling mistake "Asyncrhonous" -> "Asynchronous"
  clocksource/drivers/bcm2835_timer: Unmap region obtained by of_iomap
  clocksource/drivers/arm_arch_timer: Map frame with of_io_request_and_map()
  arm64: dts: rockchip: Arch counter doesn't tick in system suspend
  clocksource/drivers/arm_arch_timer: Don't assume clock runs in suspend
  posix-timers: Make them configurable
  posix_cpu_timers: Move the add_device_randomness() call to a proper place
  timer: Move sys_alarm from timer.c to itimer.c
  ptp_clock: Allow for it to be optional
  Kconfig: Regenerate *.c_shipped files after previous changes
  ...
2016-12-12 19:56:15 -08:00
Andrew Jeffery
a82603a832 checkpatch: don't emit unified-diff error for rename-only patches
I generated a patch with `git format-patch` which checkpatch thinks is
invalid:

    $ ./scripts/checkpatch.pl lpc-dt/0006-mfd-dt-Move-syscon-bindings-to-syscon-subdirectory.patch
    WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
     Documentation/devicetree/bindings/mfd/{ => syscon}/aspeed-scu.txt         | 0

    ERROR: Does not appear to be a unified-diff format patch

    total: 1 errors, 1 warnings, 0 lines checked

    NOTE: For some of the reported defects, checkpatch may be able to
          mechanically convert to the typical style using --fix or --fix-inplace.

    lpc-dt/0006-mfd-dt-Move-syscon-bindings-to-syscon-subdirectory.patch has style problems, please review.

    NOTE: If any of the errors are false positives, please report
          them to the maintainer, see CHECKPATCH in MAINTAINERS.

The patch in question was all renames with no edits, giving 100%
similarity and thus no diff markers.

Set '$is_patch = 1;' in the add/remove/rename detection to avoid
generating spurious warnings.

Link: http://lkml.kernel.org/r/20161205232224.22685-1-andrew@aj.id.au
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Acked-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-12 18:55:10 -08:00
Tomas Winkler
fd39f904b1 checkpatch: don't check c99 types like uint8_t under tools
Tools contains user space code so uintX_t types are just fine.

Link: http://lkml.kernel.org/r/1479286379-853-1-git-send-email-tomas.winkler@intel.com
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Acked-by: Joe Perches <joe@perches.com>
Cc: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-12 18:55:10 -08:00
Joe Perches
11ca40a0f8 checkpatch: avoid multiple line dereferences
Code that puts a single dereferencing identifier on multiple lines like:

     struct_identifier->member[index].
	member = <foo>;

is generally hard to follow.

Prefer that dereferencing identifiers be single line.

Link: http://lkml.kernel.org/r/e9c191ae3f41bedc8ffd5c0fbcc5a1cec1d1d2df.1478120869.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-12 18:55:10 -08:00
Joe Perches
d6430f7180 checkpatch: don't check .pl files, improve absolute path commit log test
perl files (*.pl) are mostly inappropriate to check coding styles so
exempt them from long line checks and various .[ch] file type tests.

And as well, only scan absolute paths in the commit log, not in the
patch.

Link: http://lkml.kernel.org/r/85b101d50acafe6c0261d9f7df283c827da52c4a.1477340110.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Andy Whitcroft <apw@canonical.com>
Cc: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-12 18:55:10 -08:00
Andrew Morton
224236d9c3 scripts/checkpatch.pl: fix spelling
s/preceeded/preceded/

Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-12 18:55:10 -08:00
Jerome Forissier
f2c19c2f38 checkpatch: don't try to get maintained status when --no-tree is given
Fixes the following warning:

  Use of uninitialized value $root in concatenation (.) or string at /path/to/checkpatch.pl line 764.

Link: http://lkml.kernel.org/r/1476719709-16668-1-git-send-email-jerome.forissier@linaro.org
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Brian Norris <computersforpeace@gmail.com>
Acked-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-12 18:55:10 -08:00
Joe Perches
03aed214b2 get_maintainer: look for arbitrary letter prefixes in sections
Jani Nikula proposes patches to add a few new letter prefixes for "B:"
bug reporting and "C:" maintainer chatting to the various sections of
MAINTAINERS.

Add a generic mechanism to get_maintainer.pl to find sections that have
any combination of "[A-Z]" letter prefix types in a section.

Link: http://lkml.kernel.org/r/1477332323.1984.8.camel@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Dave Airlie <airlied@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-12-12 18:55:09 -08:00