Commit Graph

856579 Commits

Author SHA1 Message Date
Aneesh Kumar K.V
a6f197f889 powerpc/book3s64: Export has_transparent_hugepage() related functions.
In later patch, we want to use hash_transparent_hugepage() in a kernel module.
Export two related functions.

Acked-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Link: https://lore.kernel.org/r/20190924042440.27946-1-aneesh.kumar@linux.ibm.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2019-09-24 10:22:29 -07:00
Aneesh Kumar K.V
5b26db95fe libnvdimm: Use PAGE_SIZE instead of SZ_4K for align check
Architectures have different page size than 4K. Use the PAGE_SIZE
to make sure ranges are correctly aligned.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Link: https://lore.kernel.org/r/20190905154603.10349-7-aneesh.kumar@linux.ibm.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2019-09-05 16:11:14 -07:00
Aneesh Kumar K.V
047e0eff1f libnvdimm/label: Remove the dpa align check
There's no strict requirement why slot_valid() needs to check for page alignment
and it would seem to actively hurt cross-page-size compatibility. Let's
delete the check and rely on checksum validation.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Link: https://lore.kernel.org/r/20190905154603.10349-6-aneesh.kumar@linux.ibm.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2019-09-05 16:11:14 -07:00
Aneesh Kumar K.V
edbb52c244 libnvdimm/pfn_dev: Add page size and struct page size to pfn superblock
This is needed so that pmem probe don't wrongly initialize a namespace
which doesn't have enough space reserved for holding struct pages
with the current kernel.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Link: https://lore.kernel.org/r/20190905154603.10349-5-aneesh.kumar@linux.ibm.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2019-09-05 16:11:14 -07:00
Aneesh Kumar K.V
e96f0bf2ec libnvdimm/pfn_dev: Add a build check to make sure we notice when struct page size change
Namespaces created with PFN_MODE_PMEM mode stores struct page in the reserve
block area. We need to make sure we account for the right struct page
size while doing this. Instead of directly depending on sizeof(struct page)
which can change based on different kernel config option, use the max struct
page size (64) while calculating the reserve block area. This makes sure pmem
device can be used across kernels built with different configs.

If the above assumption of max struct page size change, we need to update the
reserve block allocation space for new namespaces created.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Link: https://lore.kernel.org/r/20190905154603.10349-4-aneesh.kumar@linux.ibm.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2019-09-05 16:11:14 -07:00
Aneesh Kumar K.V
1c97afa714 libnvdimm/pmem: Advance namespace seed for specific probe errors
In order to support marking namespaces with unsupported feature/versions
disabled, nvdimm core should advance the namespace seed on these
probe failures. Otherwise, these failed namespaces will be considered a
seed namespace and will be wrongly used while creating new namespaces.

Add -EOPNOTSUPP as return from pmem probe callback to indicate a namespace
initialization failures due to pfn superblock feature/version mismatch.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Link: https://lore.kernel.org/r/20190905154603.10349-3-aneesh.kumar@linux.ibm.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2019-09-05 16:11:14 -07:00
Dan Williams
a2d1c7a61d libnvdimm/region: Rewrite _probe_success() to _advance_seeds()
The nd_region_probe_success() helper collides seed management with
nvdimm->busy tracking. Given the 'busy' increment is handled internal to the
nd_region driver 'probe' path move the decrement to the 'remove' path.
With that cleanup the routine can be renamed to the more descriptive
nd_region_advance_seeds().

The change is prompted by an incoming need to optionally advance the
seeds on other events besides 'probe' success.

Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Link: https://lore.kernel.org/r/20190905154603.10349-2-aneesh.kumar@linux.ibm.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2019-09-05 16:11:14 -07:00
Dan Williams
7b60422cb7 libnvdimm/security: Consolidate 'security' operations
The security operations are exported from libnvdimm/security.c to
libnvdimm/dimm_devs.c, and libnvdimm/security.c is optionally compiled
based on the CONFIG_NVDIMM_KEYS config symbol.

Rather than export the operations across compile objects, just move the
__security_store() entry point to live with the helpers.

Acked-by: Jeff Moyer <jmoyer@redhat.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/156686730515.184120.10522747907309996674.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2019-08-29 13:51:57 -07:00
Dan Williams
bc4f2199ca libnvdimm/security: Tighten scope of nvdimm->busy vs security operations
An attempt to freeze DIMMs currently runs afoul of default blocking of
all security operations in the entry to the 'store' routine for the
'security' sysfs attribute.

The blanket blocking of all security operations while the DIMM is in
active use in a region is too restrictive. The only security operations
that need to be aware of the ->busy state are those that mutate the
state of data, i.e. erase and overwrite.

Refactor the ->busy checks to be applied at the entry common entry point
in __security_store() rather than each of the helper routines to enable
freeze to be run regardless of busy state.

Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
Link: https://lore.kernel.org/r/156686729996.184120.3458026302402493937.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2019-08-29 13:51:57 -07:00
Dan Williams
d78c620a2e libnvdimm/security: Introduce a 'frozen' attribute
In the process of debugging a system with an NVDIMM that was failing to
unlock it was found that the kernel is reporting 'locked' while the DIMM
security interface is 'frozen'. Unfortunately the security state is
tracked internally as an enum which prevents it from communicating the
difference between 'locked' and 'locked + frozen'. It follows that the
enum also prevents the kernel from communicating 'unlocked + frozen'
which would be useful for debugging why security operations like 'change
passphrase' are disabled.

Ditch the security state enum for a set of flags and introduce a new
sysfs attribute explicitly for the 'frozen' state. The regression risk
is low because the 'frozen' state was already blocked behind the
'locked' state, but will need to revisit if there were cases where
applications need 'frozen' to show up in the primary 'security'
attribute. The expectation is that communicating 'frozen' is mostly a
helper for debug and status monitoring.

Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reported-by: Jeff Moyer <jmoyer@redhat.com>
Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
Link: https://lore.kernel.org/r/156686729474.184120.5835135644278860826.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2019-08-29 13:49:13 -07:00
Gustavo A. R. Silva
2b90cb2233 libnvdimm, region: Use struct_size() in kzalloc()
One of the more common cases of allocation size calculations is finding
the size of a structure that has a zero-sized array at the end, along
with memory for some number of elements for that array. For example:

struct nd_region {
	...
        struct nd_mapping mapping[0];
};

instance = kzalloc(sizeof(struct nd_region) + sizeof(struct nd_mapping) *
                          count, GFP_KERNEL);

Instead of leaving these open-coded and prone to type mistakes, we can
now use the new struct_size() helper:

instance = kzalloc(struct_size(instance, mapping, count), GFP_KERNEL);

This code was detected with the help of Coccinelle.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Vishal Verma <vishal.l.verma@intel.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20190610210613.GA21989@embeddedor
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2019-08-29 13:49:00 -07:00
Dan Williams
5518ba4ebd tools/testing/nvdimm: Fix fallthrough warning
Use the expected 'fall through' designation to fix:

    tools/testing/nvdimm/test/nfit.c: In function ‘nd_intel_test_finish_query’:
    tools/testing/nvdimm/test/nfit.c:433:13: warning: this statement may fall through [-Wimplicit-fallthrough=]
       fw->state = FW_STATE_UPDATED;
       ~~~~~~~~~~^~~~~~~~~~~~~~~~~~
    tools/testing/nvdimm/test/nfit.c:435:2: note: here
      case FW_STATE_UPDATED:
      ^~~~

Reviewed-by: Vishal Verma <vishal.l.verma@intel.com>
Link: https://lore.kernel.org/r/156521347159.1442374.1381360879102718899.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2019-08-14 18:04:39 -07:00
Aneesh Kumar K.V
49bddc73d1 libnvdimm/of_pmem: Provide a unique name for bus provider
ndctl binaries, v66 and older, mistakenly require the ndbus to have
unique names. If not while enumerating the bus in userspace it drops bus
with similar names.  This results in us not listing devices beneath the
bus.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Tested-by: Vaibhav Jain <vaibhav@linux.ibm.com>
Link: https://lore.kernel.org/r/20190807040029.11344-1-aneesh.kumar@linux.ibm.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2019-08-13 20:31:57 -07:00
Linus Torvalds
d45331b00d Linux 5.3-rc4 2019-08-11 13:26:41 -07:00
Linus Torvalds
b6c0649caf dax fixes v5.3-rc4
- Fix dax_layout_busy_page() to not discard private cow pages of fs/dax
   private mappings.
 
 - Update the memremap_pages core to properly cleanup on behalf of
   internal reference-count users like device-dax.
 -----BEGIN PGP SIGNATURE-----
 
 iQIcBAABAgAGBQJdUGLxAAoJEB7SkWpmfYgC62IP/3aHwBbdedlXves4NQ0QhN5z
 3jooOqpayfgkdPZp4U2XnNolsbKDME6h7m7Mn+GzzRSCfNGsdcnLHDWwXt4tTWE8
 rvDNPat+22oWSVqnZOTb5GfnZKGmAbk5eC2HI9HT2VPf/BWMIoU6/QhvIzeLCEf7
 g72XTEouitGgRk2Cn8Wi3+y+fvbMdur/0qofBH9rxfQEgTWiDtCJvxZ5KyH18hlt
 qbvJR0CG2mxIxEbM1qx/1/HysXgs3UeTJVzHioF5SLdGcyQP14Djp0MCuqTGiB6l
 aEgMYSJcca7nilJNMcc2gNEsNNuga6UDWaF52FJuAoy+3vs837iexP6L+VbthqTT
 70vAvEOnDyzgKe/jll8INjzSc+RDCbMXoFdSmGXTt9KHVMbZ+taGOeEIaY+UkYKk
 g1BAWiZZEedJZXZmltGPDOXuPdzmK1uMR13gjz/FS298ffmznsqfEAKkSuzxWsKH
 vheQnQjbEQoRNk4uI/mjxz/XYCEgnVqXX/9OlQ3WrJHWdOtBLEfykAem2RqeDGc7
 QF3EZ+IGCD4xPRJWbWXtJdUK7EtGTPrzyiKHEPnXsj8xYDo6oAYK+erychiSI7y5
 9htSyCWNZ5ccE8hqewKD5qN1XNqX6XmmmxgMX4i2w9fSdWFgzAkWPw/xTvw6BkfC
 Bn5b/9LcFIfTX9/oAlwh
 =Se2X
 -----END PGP SIGNATURE-----

Merge tag 'dax-fixes-5.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm

Pull dax fixes from Dan Williams:
 "A filesystem-dax and device-dax fix for v5.3.

  The filesystem-dax fix is tagged for stable as the implementation has
  been mistakenly throwing away all cow pages on any truncate or hole
  punch operation as part of the solution to coordinate device-dma vs
  truncate to dax pages.

  The device-dax change fixes up a regression this cycle from the
  introduction of a common 'internal per-cpu-ref' implementation.

  Summary:

   - Fix dax_layout_busy_page() to not discard private cow pages of
     fs/dax private mappings.

   - Update the memremap_pages core to properly cleanup on behalf of
     internal reference-count users like device-dax"

* tag 'dax-fixes-5.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  mm/memremap: Fix reuse of pgmap instances with internal references
  dax: dax_layout_busy_page() should not unmap cow pages
2019-08-11 13:15:10 -07:00
Linus Torvalds
f6192cb742 Bug fix for NTB MSI kernel compile warning
-----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEEoE9b9c3U2JxX98mqbmZLrHqL0iMFAl1Ih1cACgkQbmZLrHqL
 0iPHXg//VPe9Zkiw4hH6HtxOFh8osLaAYXkC45R0ue2TJFpSTK1kWzICRC2sW9WO
 yC6IYdPiLZ25oxIhxGF8OZYo/SFTZF0d6IaaKqWZsyQvySSZxk3i/xnAoGydbgMb
 h6wD52Bm640xy54ZbK0Y4t85DdAPY+mpo26/bRhRoGJKl7BHK79sT4GcHHzhBFdN
 iXkqLFoXCc/Wa8KjOqh46bNB86bf8DSda18nbPX8qdhIUuxOShhP4Mub0nnf6PpY
 8oxQE94ze6VmPcYCfNOQB+eoW2/nn0sdCV+U8JfbtMVR28YtcGu3yGm7DiroASHj
 aaJ9Ud9E+vJutqh6175OgI0DlpelQPdNnuEnR8/EUPE+QJ4wEfzwNOWTZfIbWCmr
 /HsxXQRCpoPql2xg/bMI1lUL3J0dWDb4Fd58b070rKSB0YpqwZv44kQXaDRxJw5r
 /mCtBXZ5uo56jqA8ISx0/30M6Xi4TXD8bAuOeMd+8ct2wicf/v5ZLQVIDzTKMdUh
 nYYewlbgUaCGXp3N1FQgPRTJm3lKkLz7AaV24p4tUfq5tV5PdFdaD9eIAErswKwx
 ndmw5lrAz5JGHP1Ew2EgsRFNGewl9ZK7lZ22wgP9y31VpZUVgPjg0hAQndqgxicd
 EofZgmAtqc6Vi947fjEzBQHI4tnvmVXgmfs0ivvLsrIRwr4zWjM=
 =5aN/
 -----END PGP SIGNATURE-----

Merge tag 'ntb-5.3-bugfixes' of git://github.com/jonmason/ntb

Pull NTB fix from Jon Mason:
 "Bug fix for NTB MSI kernel compile warning"

* tag 'ntb-5.3-bugfixes' of git://github.com/jonmason/ntb:
  NTB/msi: remove incorrect MODULE defines
2019-08-11 10:13:53 -07:00
Linus Torvalds
296d05cb0d RISC-V updates for v5.3-rc4
A few minor RISC-V updates for v5.3-rc4:
 
 - Remove __udivdi3() from the 32-bit Linux port, converting the only
   upstream user to use do_div(), per Linux policy
 
 - Convert the RISC-V standard clocksource away from per-cpu data structures,
   since only one is used by Linux, even on a multi-CPU system
 
 - A set of DT binding updates that remove an obsolete text binding in
   favor of a YAML binding, fix a bogus compatible string in the schema
     (thus fixing a "make dtbs_check" warning), and clarifies the future
       values expected in one of the RISC-V CPU properties
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEElRDoIDdEz9/svf2Kx4+xDQu9KksFAl1PO50ACgkQx4+xDQu9
 Kks+aA//d2HVbYpsQT4dnK9HHySTEN8COpxAtXEyprqEqFvhGWiXHf/o5DZJS+KA
 J0T4tnfajUxNzN+/B+Wvg8QRZyojad1gPQ8WpKGsRjVMtSZJuvo/knW1aVJPFr5S
 28AjXyR5XVugvt5mNSNJTrPBeJ/bzNSZOLfat+gCsHBblNipdWwZhOwcM4mi3sQM
 9fc8R5Mg0LHwNF0yVoA47WEwWgjXINkOE5ntvgNydiwoTc4noB046gy0ciZF04WS
 YZMNRmr3BCL30zGZv6Ewu7xvcRYf84wjhIvPFkuaJHfxBzwAd4gulsytqGCQmFIC
 Na7/5HOtzXpsS27hSev+1SGljv81p3rlKIBVxB2E1OH/eDl1U+yhm/AtM0wbXkpD
 2UMHmKoSL/oYIXKOXwpWSKTGxNJbF1c56q4lwDVjq/kvg88GhFXQV/cQV1pS2Aao
 KkqKl8AfxzoG3KNGKNJD42ztMW+3a3Wp215pGbrVVAwVOD8kFgCiM9RtqH2pTZrA
 AjD/wpAaH9glGkCcwPovzOJ1XA9VKLy4nWLowv5zB9To1wbbAuYRj/7pUNm6LTWF
 kcU0E6Yza5b2kKvwSzLdZa4W837XQrf3fRKMTTgH+fcjwma+GlLwx+f6Yk8AmTpP
 TMSpV9C6M5RKLVqdzNWUT7q4dzTsNPXse5DhhhnMh3cBPHIGlzQ=
 =DIhv
 -----END PGP SIGNATURE-----

Merge tag 'riscv/for-v5.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull RISC-V updates from Paul Walmsley:
 "A few minor RISC-V updates for v5.3-rc4:

   - Remove __udivdi3() from the 32-bit Linux port, converting the only
     upstream user to use do_div(), per Linux policy

   - Convert the RISC-V standard clocksource away from per-cpu data
     structures, since only one is used by Linux, even on a multi-CPU
     system

   - A set of DT binding updates that remove an obsolete text binding in
     favor of a YAML binding, fix a bogus compatible string in the
     schema (thus fixing a "make dtbs_check" warning), and clarifies the
     future values expected in one of the RISC-V CPU properties"

* tag 'riscv/for-v5.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  dt-bindings: riscv: fix the schema compatible string for the HiFive Unleashed board
  dt-bindings: riscv: remove obsolete cpus.txt
  RISC-V: Remove udivdi3
  riscv: delay: use do_div() instead of __udivdi3()
  dt-bindings: Update the riscv,isa string description
  RISC-V: Remove per cpu clocksource
2019-08-10 16:31:47 -07:00
Linus Torvalds
6d8f809cb5 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
 "A few fixes for x86:

   - Don't reset the carefully adjusted build flags for the purgatory
     and remove the unwanted flags instead. The 'reset all' approach led
     to build fails under certain circumstances.

   - Unbreak CLANG build of the purgatory by avoiding the builtin
     memcpy/memset implementations.

   - Address missing prototype warnings by including the proper header

   - Fix yet more fall-through issues"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/lib/cpu: Address missing prototypes warning
  x86/purgatory: Use CFLAGS_REMOVE rather than reset KBUILD_CFLAGS
  x86/purgatory: Do not use __builtin_memcpy and __builtin_memset
  x86: mtrr: cyrix: Mark expected switch fall-through
  x86/ptrace: Mark expected switch fall-through
2019-08-10 16:24:03 -07:00
Linus Torvalds
d2359a5153 Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf tooling fixes from Thomas Gleixner:
 "Perf tooling fixes all over the place:

   - Fix the selection of the main thread COMM in db-export

   - Fix the disassemmbly display for BPF in annotate

   - Fix cpumap mask setup in perf ftrace when only one CPU is present

   - Add the missing 'cpu_clk_unhalted.core' event

   - Fix CPU 0 bindings in NUMA benchmarks

   - Fix the module size calculations for s390

   - Handle the gap between kernel end and module start on s390
     correctly

   - Build and typo fixes"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf pmu-events: Fix missing "cpu_clk_unhalted.core" event
  perf annotate: Fix s390 gap between kernel end and module start
  perf record: Fix module size on s390
  perf tools: Fix include paths in ui directory
  perf tools: Fix a typo in a variable name in the Documentation Makefile
  perf cpumap: Fix writing to illegal memory in handling cpumap mask
  perf ftrace: Fix failure to set cpumask when only one cpu is present
  perf db-export: Fix thread__exec_comm()
  perf annotate: Fix printing of unaugmented disassembled instructions from BPF
  perf bench numa: Fix cpu0 binding
2019-08-10 16:19:02 -07:00
Linus Torvalds
dcbb4a1539 Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Thomas Gleixner:
 "Three fixlets for the scheduler:

   - Avoid double bandwidth accounting in the push & pull code

   - Use a sane FIFO priority for the Pressure Stall Information (PSI)
     thread.

   - Avoid permission checks when setting the scheduler params for the
     PSI thread"

* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/psi: Do not require setsched permission from the trigger creator
  sched/psi: Reduce psimon FIFO priority
  sched/deadline: Fix double accounting of rq/running bw in push & pull
2019-08-10 15:48:02 -07:00
Linus Torvalds
ed254bb54f Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fix from Thomas Gleixner:
 "A small fix for the affinity spreading code.

  It failed to handle situations where a single vector was requested
  either due to only one CPU being available or vector exhaustion
  causing only a single interrupt to be granted.

  The fix is to simply remove the requirement in the affinity spreading
  code for more than one interrupt being available"

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  genirq/affinity: Create affinity mask for single vector
2019-08-10 15:46:25 -07:00
Linus Torvalds
6054f4ecdc Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull objtool warning fix from Thomas Gleixner:
 "The recent objtool fixes/enhancements unearthed a unbalanced CLAC in
  the i915 driver.

  Chris asked me to pick the fix up and route it through"

* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  drm/i915: Remove redundant user_access_end() from __copy_from_user() error path
2019-08-10 15:44:09 -07:00
Linus Torvalds
829890d266 Fix incorrect lseek / fiemap results
-----BEGIN PGP SIGNATURE-----
 
 iQIcBAABAgAGBQJdTsiNAAoJENW/n+sDE2U6NAQP/3sffDXhuA3smLw41OjPs/wu
 kFbf0GdDrxouPfCEzpqdOaETcdsb9LVnJWmWKexDNjgzj4+5NdvwjD8UdEHUUsfp
 FBl2ALYobAmyEyKlzgcJ+CA40DMrsWWe8cqwcDqukz5nuyK/XwKJAtUa36TXhZx5
 1takFgd2FSpxCbBkyS/4SboG3xuXFyuKMJ3j3iSHiZFFlasf1WijLZEE4WnLeKTU
 BJYhf3SWPHKjwJb+vHJrXEwibluK4yfcYUPJUx+unZLsIoAw1DRj4uU6DrQTGc0t
 vJov4B56TQcwWIt3ZO24GrO0bZ7/xYruucgrYfhx8C9enWsN/bDcrcePeNJJaAd6
 fv2dmZAP/x5MQZWIz5wB2Kj3MwZ51gOru4pRJylJsqi2GwBt3TXyj/fXcOf3gs/6
 JjuxDxorg3lRrv67SFYzhmPxHYKhAEG+0pj+hci+BXoBnfY71Rs2qnzmynf3z6Yg
 /n5lZwfGRv0QqSaaDtQsXcyhjMAhewJhSabWwgFIc80xgARyA3KpsbIXRI8vrnFo
 bs07P8eROaPVaL4lkVJCil9nJhh2K+XZsal5QpUGHDKaM5NIT0JG+Iho5D34vrF/
 B62+GlAoaJwiOU4A86U7lY99zk7HYFuz5chkjNpFnrki3Y6umM+i4U2faO92kAIw
 /SCEBYH7oACnN4uwKxYZ
 =nHlX
 -----END PGP SIGNATURE-----

Merge tag 'gfs2-v5.3-rc3.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2

Pull gfs2 fix from Andreas Gruenbacher:
 "Fix incorrect lseek / fiemap results"

* tag 'gfs2-v5.3-rc3.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
  gfs2: gfs2_walk_metadata fix
2019-08-10 15:41:15 -07:00
Joe Perches
bfd77145f3 Makefile: Convert -Wimplicit-fallthrough=3 to just -Wimplicit-fallthrough for clang
A compilation -Wimplicit-fallthrough warning was enabled by commit
a035d552a9 ("Makefile: Globally enable fall-through warning")

Even though clang 10.0.0 does not currently support this warning without
a patch, clang currently does not support a value for this option.

  Link: https://bugs.llvm.org/show_bug.cgi?id=39382

The gcc default for this warning is 3 so removing the =3 has no effect
for gcc and enables the warning for patched versions of clang.

Also remove the =3 from an existing use in a parisc Makefile:
arch/parisc/math-emu/Makefile

Signed-off-by: Joe Perches <joe@perches.com>
Reviewed-and-tested-by: Nathan Chancellor <natechancellor@gmail.com>
Cc: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-08-10 12:45:37 -07:00
Linus Torvalds
5aa9100737 Char/misc fixes for 5.3-rc4
Here are some small char/misc driver fixes for 5.3-rc4.
 
 Two of these are for the habanalabs driver for issues found when running
 on a big-endian system (are they still alive?)  The others are tiny
 fixes reported by people, and a MAINTAINERS update about the location of
 the fpga development tree.
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 
 iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCXU6uwA8cZ3JlZ0Brcm9h
 aC5jb20ACgkQMUfUDdst+ymBrQCfRh8brBuZ4ZoeP9aVgjkPDhwdBLkAn38RdH6c
 96J1xGLZf1+CN7GVLnFD
 =YUWU
 -----END PGP SIGNATURE-----

Merge tag 'char-misc-5.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver fixes Greg KH:
 "Here are some small char/misc driver fixes for 5.3-rc4.

  Two of these are for the habanalabs driver for issues found when
  running on a big-endian system (are they still alive?) The others are
  tiny fixes reported by people, and a MAINTAINERS update about the
  location of the fpga development tree.

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

* tag 'char-misc-5.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  coresight: Fix DEBUG_LOCKS_WARN_ON for uninitialized attribute
  MAINTAINERS: Move linux-fpga tree to new location
  nvmem: Use the same permissions for eeprom as for nvmem
  habanalabs: fix host memory polling in BE architecture
  habanalabs: fix F/W download in BE architecture
2019-08-10 12:24:20 -07:00
Linus Torvalds
36e630ed98 Driver core fixes for 5.3-rc4
Here are 2 small fixes for some driver core issues that have been
 reported.  There is also a kernfs "fix" here, which was then reverted
 because it was found to cause problems in linux-next.
 
 The driver core fixes both resolve reported issues, one with gpioint
 stuff that showed up in 5.3-rc1, and the other finally (and hopefully)
 resolves a very long standing race when removing glue directories.  It's
 nice to get that issue finally resolved and the developers involved
 should be applauded for the persistence it took to get this patch
 finally accepted.
 
 All of these have been in linux-next for a while with no reported
 issues.  Well, the one reported issue, hence the revert :)
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 
 iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCXU6t8Q8cZ3JlZ0Brcm9h
 aC5jb20ACgkQMUfUDdst+yk1YgCgy7Mw/CYLBK5It+fItRuAWLdyzMkAoIyo8Qen
 GS7FeSwM237JlWhC/Jqc
 =IMyo
 -----END PGP SIGNATURE-----

Merge tag 'driver-core-5.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core fixes from Greg KH:
 "Here are two small fixes for some driver core issues that have been
  reported. There is also a kernfs "fix" here, which was then reverted
  because it was found to cause problems in linux-next.

  The driver core fixes both resolve reported issues, one with gpioint
  stuff that showed up in 5.3-rc1, and the other finally (and hopefully)
  resolves a very long standing race when removing glue directories.
  It's nice to get that issue finally resolved and the developers
  involved should be applauded for the persistence it took to get this
  patch finally accepted.

  All of these have been in linux-next for a while with no reported
  issues. Well, the one reported issue, hence the revert :)"

* tag 'driver-core-5.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  Revert "kernfs: fix memleak in kernel_ops_readdir()"
  kernfs: fix memleak in kernel_ops_readdir()
  driver core: Fix use-after-free and double free on glue directory
  driver core: platform: return -ENXIO for missing GpioInt
2019-08-10 12:20:02 -07:00
Linus Torvalds
c13f86701e TTY fix for 5.3-rc4
Here is a single tty kgdb fix for 5.3-rc4.
 
 It fixes an annoying log message that has caused kdb to become useless.
 It's another fallout from ddde3c18b7 ("vt: More locking checks") which
 tries to enforce locking checks more strictly in the tty layer,
 unfortunatly when kdb is stopped, there's no need for locks :)
 
 This patch has been linux-next for a while with no reported issues
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 
 iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCXU6sCg8cZ3JlZ0Brcm9h
 aC5jb20ACgkQMUfUDdst+ykBNwCgwbxPP9bmqcyCW+0gx3SfpHAxAAYAn19DGKgV
 o5Es4DDBbXkspoW7ck7D
 =dcGv
 -----END PGP SIGNATURE-----

Merge tag 'tty-5.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty fix from Greg KH:
 "Here is a single tty kgdb fix for 5.3-rc4.

  It fixes an annoying log message that has caused kdb to become
  useless. It's another fallout from commit ddde3c18b7 ("vt: More
  locking checks") which tries to enforce locking checks more strictly
  in the tty layer, unfortunatly when kdb is stopped, there's no need
  for locks :)

  This patch has been linux-next for a while with no reported issues"

* tag 'tty-5.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  kgdboc: disable the console lock when in kgdb
2019-08-10 12:17:12 -07:00
Linus Torvalds
15fa98e40e Staging / IIO driver fixes for 5.3-rc4
Here are some small staging and IIO driver fixes for 5.3-rc4.
 
 Nothing major, just resolutions for a number of small reported issues,
 full details in the shortlog.
 
 All have been in linux-next for a while with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 
 iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCXU6s+Q8cZ3JlZ0Brcm9h
 aC5jb20ACgkQMUfUDdst+ymESgCgx89m2wjVxWJIvqpnUWwzSRdfE7sAnjOl5MG+
 oHxph0/GU8f1NZQ3ZOYF
 =pRYy
 -----END PGP SIGNATURE-----

Merge tag 'staging-5.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging / IIO driver fixes from Greg KH:
 "Here are some small staging and IIO driver fixes for 5.3-rc4.

  Nothing major, just resolutions for a number of small reported issues,
  full details in the shortlog.

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

* tag 'staging-5.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  iio: adc: gyroadc: fix uninitialized return code
  docs: generic-counter.rst: fix broken references for ABI file
  staging: android: ion: Bail out upon SIGKILL when allocating memory.
  Staging: fbtft: Fix GPIO handling
  staging: unisys: visornic: Update the description of 'poll_for_irq()'
  staging: wilc1000: flush the workqueue before deinit the host
  staging: gasket: apex: fix copy-paste typo
  Staging: fbtft: Fix reset assertion when using gpio descriptor
  Staging: fbtft: Fix probing of gpio descriptor
  iio: imu: mpu6050: add missing available scan masks
  iio: cros_ec_accel_legacy: Fix incorrect channel setting
  IIO: Ingenic JZ47xx: Set clock divider on probe
  iio: adc: max9611: Fix misuse of GENMASK macro
2019-08-10 12:13:39 -07:00
Linus Torvalds
1041f50921 USB fixes for 5.3-rc4
Here are some small USB fixes for 5.3-rc4.
 
 The "biggest" one here is moving code from one file to another in order
 to fix a long-standing race condition with the creation of sysfs files
 for USB devices.  Turns out that there are now userspace tools out there
 that are hitting this long-known bug, so it's time to fix them.
 Thankfully the tool-maker in this case fixed the issue :)
 
 The other patches in here are all fixes for reported issues.  Now that
 syzbot knows how to fuzz USB drivers better, and is starting to now fuzz
 the userspace facing side of them at the same time, there will be more
 and more small fixes like these coming, which is a good thing.
 
 All of these have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 
 iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCXU6vag8cZ3JlZ0Brcm9h
 aC5jb20ACgkQMUfUDdst+ynNZgCgs6tk3zfjbsiA1YuLtQ5PIazQFwsAn00qRiKi
 0MIt5mRc7lEsG1yJgvEQ
 =fb5s
 -----END PGP SIGNATURE-----

Merge tag 'usb-5.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here are some small USB fixes for 5.3-rc4.

  The "biggest" one here is moving code from one file to another in
  order to fix a long-standing race condition with the creation of sysfs
  files for USB devices. Turns out that there are now userspace tools
  out there that are hitting this long-known bug, so it's time to fix
  them. Thankfully the tool-maker in this case fixed the issue :)

  The other patches in here are all fixes for reported issues. Now that
  syzbot knows how to fuzz USB drivers better, and is starting to now
  fuzz the userspace facing side of them at the same time, there will be
  more and more small fixes like these coming, which is a good thing.

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

* tag 'usb-5.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  usb: setup authorized_default attributes using usb_bus_notify
  usb: iowarrior: fix deadlock on disconnect
  Revert "USB: rio500: simplify locking"
  usb: usbfs: fix double-free of usb memory upon submiturb error
  usb: yurex: Fix use-after-free in yurex_delete
  usb: typec: tcpm: Ignore unsupported/unknown alternate mode requests
  xhci: Fix NULL pointer dereference at endpoint zero reset.
  usb: host: xhci-rcar: Fix timeout in xhci_suspend()
  usb: typec: ucsi: ccg: Fix uninitilized symbol error
  usb: typec: tcpm: remove tcpm dir if no children
  usb: typec: tcpm: free log buf memory when remove debug file
  usb: typec: tcpm: Add NULL check before dereferencing config
2019-08-10 11:59:57 -07:00
Linus Torvalds
97946f59fe Some pin control fixes for the v5.4 series:
- Delay acquisition of regmaps in the Aspeed G5 driver.
 
 - Make a symbol static to reduce compiler noise.
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEElDRnuGcz/wPCXQWMQRCzN7AZXXMFAl1OhssACgkQQRCzN7AZ
 XXOZ8Q//cPbSRI8yYeEiAfCsC32UojzKzsZ42any/Qn2mw9lWjHuq8Qzkt8TVfoE
 +g1BEcM6aln4j4ZX3MEropULvZmBRsgYObQLqiq0LsT+C+cQUTBXOSEYneLfkXur
 9JncvOeymELU0BH6JMznhiKM6fuuepznhrhbWfHrMDddyrmzyTnjXExmKGap1+jZ
 mrKoDd7uVnpRSWjWXFm0wkwaPhJZBfPHC4Yh8T/VbmGlZ4KOGi/uR/QrjXfrnzec
 Ml78qbgrSCyv90nefI1ZnmKKTSlWTPhz5jvGD6xFr3C3jUMzKz+JnLH5DMRVsyLK
 O869nFmcnuLF/+DR0FCdx5HXSSB8uBDEdtZsUhXX0z+X05xX2LKA7VwxWbyHB5fm
 xcsig7qOvLYLjIhzuOkf4N+zIo32LqbKewkS9/X5J3aJBDkERvbwLZRdajSIruK+
 +uChqxD7FE8FMaWfT46aY5AWKLDxlOo1uNQGfh1xFzDMpxb3l6NdJd/4DXD++t5F
 mH3QpBMssgPLbwUctCkX3PRXDLnAntPZ7avrJgTnHXfhD1s3W/Ln1W6EY5oETGcJ
 rKO/z2ph5LEtn97iLfMdbIfweHY3dmFZwQAqJukx7zFocqtnM2c+dq14pt/YRAQ0
 xepb0u8w+ZOodOO857Omp/YhFwJwRXo9b7KVucs2vqzFlD3N+mE=
 =4BKY
 -----END PGP SIGNATURE-----

Merge tag 'pinctrl-v5.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control fixes from Linus Walleij:

 - Delay acquisition of regmaps in the Aspeed G5 driver.

 - Make a symbol static to reduce compiler noise.

* tag 'pinctrl-v5.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: aspeed: Make aspeed_pinmux_ips static
  pinctrl: aspeed-g5: Delay acquisition of regmaps
2019-08-10 10:21:25 -07:00
Linus Torvalds
23df57afe8 powerpc fixes for 5.3 #4
Just one fix, a revert of a commit that was meant to be a minor improvement to
 some inline asm, but ended up having no real benefit with GCC and broke booting
 32-bit machines when using Clang.
 
 Thanks to:
   Arnd Bergmann, Christophe Leroy, Nathan Chancellor, Nick Desaulniers, Segher
   Boessenkool.
 -----BEGIN PGP SIGNATURE-----
 
 iQJHBAABCAAxFiEEJFGtCPCthwEv2Y/bUevqPMjhpYAFAl1Oi1ATHG1wZUBlbGxl
 cm1hbi5pZC5hdQAKCRBR6+o8yOGlgDtbD/4wRJ0otvftdDX/1gurM4C9C9SUkmJA
 Om8YYaeyQ429mpQm6Hl8UJcnmeOZS0xOggOT4wNjUmyBYnc6UeFn8WBiCngdpPzp
 0ISVUOXh8iJWippllOdWYVLioirJJO4XEyKkUMbhMbwCfmaTI2axaxoo/woSTBWt
 1TuZybDTa1hB5jrJ60aHA4vUxxa2UH58MZP1UOME581mAy77N2RDzC5lBZcK2ob7
 mlCQn0HgLTuM/KZIRyZ7DpWehFIS0tFfbkB6PCcti9+dNxyK56/fzcp8U4cUg5iu
 w/ESFrtVL13MR0n8XkJ1gfvvh78l3l0jaDGrcGifkUTIJoDHaOVOtTG/0jFjF/TN
 e22IQ8kNJcqspfFu2Kazby16d97hKqUgIgYKheBGX9bIeWuQzrEWDxgTqa3Exr0v
 TX3V9LDQjSSNJFZaIrJU3Oa8xxErQKaNKtgNuUK7I3JUjr50UynzXaJFLdh+VNzg
 6uKtaO51CZMflFlqQ3qdhiPfh2mUCL2W7cGSMJ1ftduN2BZmezsYSwdrBQ53tYQ4
 M5n59vA4hy+8HxRd9lhrdsas2a21OhcDxU3Leq+OOBSWsvHSa6MoNrqqONeN7FS1
 +GqQP5NUefV57MSXojTnpPSRxoK5VgK1SMXkjhgoqYul2GLz8UdRzTl9U94UAAXY
 TM1s3o3/dGS7mQ==
 =cRJi
 -----END PGP SIGNATURE-----

Merge tag 'powerpc-5.3-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc fix from Michael Ellerman:
 "Just one fix, a revert of a commit that was meant to be a minor
  improvement to some inline asm, but ended up having no real benefit
  with GCC and broke booting 32-bit machines when using Clang.

  Thanks to: Arnd Bergmann, Christophe Leroy, Nathan Chancellor, Nick
  Desaulniers, Segher Boessenkool"

* tag 'powerpc-5.3-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  Revert "powerpc: slightly improve cache helpers"
2019-08-10 10:17:19 -07:00
Linus Torvalds
bf1881cf48 Wimplicit-fallthrough patches for 5.3-rc4
Hi Linus,
 
 Please, pull the following patches that mark switch cases where we are
 expecting to fall through.
 
  - Fix fall-through warnings in arm, sparc64, mips, i386 and s390.
 
 Thanks
 
 Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEEkmRahXBSurMIg1YvRwW0y0cG2zEFAl1OQ6EACgkQRwW0y0cG
 2zGyGBAAoUeSCRKJCmFutAbZaDAduhJ0rVschBM/F/FK7/PLf08Cwzdfz0ezTqtk
 yMmOeVEOoYBG8S1lBFxBdk1W1wJV7hcCxl33vtORnwDAIS0tDEpOuHGuLsrvzrDf
 16zDSHcKjEGETXXVku9asDbBvylXUybt2dXC77g26Qojj8h1pqBl0XYgk+BWNzat
 f4lZHhkyV2Pi5Q4PphC0W+JAKVQvfbqhnWC/q2McOsokdhxw/wNWqRLt49KD6PXX
 aCAWFbnUa1+11prdtBl1hQS/MWhqKjxSFfaIHXulgL7FxdPYo5A1a+v9V8v/fX9O
 JwEd0FLCS8xgfh1cFcpI1lR8HkRngSIbHvLaoITusogZu399cSkrj6ChtYDd1Hpv
 HwuXwXdlWDSeZkVI9LVrDIN2Rg8StuIgbwTXd98EM1x1aoCivsP0iQr5t0wyNF5W
 4Zy1WWOUXsKe1acK/kzzQ/8zBG/70ZroAXnadZtUY8p5QhH/HM9zkP4GfTedflZ4
 nw4vD8ZI0ZeIpYf+HDjV+wV7BF9TV552ArMym0CUHDsodeC/dQKWQZMVMGgNBvMU
 CvM5ByAUR2OTYzNssS4G97cxvWyiW+0OZxLSGyy5blJtNX+IgHZ9GKPSrGHwz9+2
 PdllXCYQCxk48vrrG0kczSm431ZajEwWat3j9BzdD5FrSfQXfqY=
 =6lSP
 -----END PGP SIGNATURE-----

Merge tag 'Wimplicit-fallthrough-5.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux

Pull fall-through fixes from Gustavo A. R. Silva:
 "Mark more switch cases where we are expecting to fall through, fixing
  fall-through warnings in arm, sparc64, mips, i386 and s390"

* tag 'Wimplicit-fallthrough-5.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux:
  ARM: ep93xx: Mark expected switch fall-through
  scsi: fas216: Mark expected switch fall-throughs
  pcmcia: db1xxx_ss: Mark expected switch fall-throughs
  video: fbdev: omapfb_main: Mark expected switch fall-throughs
  watchdog: riowd: Mark expected switch fall-through
  s390/net: Mark expected switch fall-throughs
  crypto: ux500/crypt: Mark expected switch fall-throughs
  watchdog: wdt977: Mark expected switch fall-through
  watchdog: scx200_wdt: Mark expected switch fall-through
  watchdog: Mark expected switch fall-throughs
  ARM: signal: Mark expected switch fall-through
  mfd: omap-usb-host: Mark expected switch fall-throughs
  mfd: db8500-prcmu: Mark expected switch fall-throughs
  ARM: OMAP: dma: Mark expected switch fall-throughs
  ARM: alignment: Mark expected switch fall-throughs
  ARM: tegra: Mark expected switch fall-through
  ARM/hw_breakpoint: Mark expected switch fall-throughs
2019-08-10 10:10:33 -07:00
Linus Torvalds
451577f3e3 Kbuild fixes for v5.3 (3rd)
- revive single target %.ko
 
  - do not create built-in.a where it is unneeded
 
  - do not create modules.order where it is unneeded
 
  - show a warning if subdir-y/m is used to visit a module Makefile
 -----BEGIN PGP SIGNATURE-----
 
 iQJSBAABCgA8FiEEbmPs18K1szRHjPqEPYsBB53g2wYFAl1OJkIeHHlhbWFkYS5t
 YXNhaGlyb0Bzb2Npb25leHQuY29tAAoJED2LAQed4NsG8U4P/3YKPF4zZdkE+bM2
 50hm4sphyexFfeCF5XdW+ppis+sybWrkotwVXAbmuvqdJFKXpJei3ftlqqtolCDy
 cwCKsNkiEF5fAu8MO4foG/QmORd2LGOWw4Iw6n78r7cppogB8CleSNA+DCQMew2Q
 O1Z8zIKpHnntksGesvpkNqaImM/lpZ3Vu+ihb26uIcrcSu+JVJq+3XGNxeneM9Yr
 jeVbGPhZXTVZoUUTbAQBnQ5mrvDwWWkZnDZkGxouEzHlRlFpJeZQJ/FFb503GySD
 qEbDF7VSMRM8LRDyRNqjwJ2/EqMIMG/eHl/1pXeo7+Pgm54PLpMHj55nkC0D9Y7X
 izus7ubm3fHF2J6MkuHYOkNBWOE5luwGJFPnEJbNlQjiBr4sYblX0GyvuPUrmkR2
 2XGqcO9REDO6y73X1Wp7lLeDOeP84yIYcsvtkf+eZxh43ZHQN60NxZpF2RxvHIMD
 ipQiOfNxt3ouiLa7TcvB4F9VAN8ZgfaB/bfUREf9dvMzbNoB8yqgh4joKWUE32NC
 2QHS23sHOYruHnRyoGYECSuRRMMqnHktuQyllTXa6/OAso1oQVR6N91nhcmgIdSE
 Cj0RChZJ8npeL0wKCcmdMrMCSAusz2sLkxmRc8Cgv5fFYcxeN4eqx+93noE19fOB
 5NOE/xliLlu6J2YbiH9KxCO/pada
 =6/wZ
 -----END PGP SIGNATURE-----

Merge tag 'kbuild-fixes-v5.3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild fixes from Masahiro Yamada:

 - revive single target %.ko

 - do not create built-in.a where it is unneeded

 - do not create modules.order where it is unneeded

 - show a warning if subdir-y/m is used to visit a module Makefile

* tag 'kbuild-fixes-v5.3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  kbuild: show hint if subdir-y/m is used to visit module Makefile
  kbuild: generate modules.order only in directories visited by obj-y/m
  kbuild: fix false-positive need-builtin calculation
  kbuild: revive single target %.ko
2019-08-09 20:31:04 -07:00
Gustavo A. R. Silva
1f7585f30a ARM: ep93xx: Mark expected switch fall-through
Mark switch cases where we are expecting to fall through.

Fix the following warnings (Building: arm-ep93xx_defconfig arm):

arch/arm/mach-ep93xx/crunch.c: In function 'crunch_do':
arch/arm/mach-ep93xx/crunch.c:46:3: warning: this statement may
fall through [-Wimplicit-fallthrough=]
      memset(crunch_state, 0, sizeof(*crunch_state));
      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/arm/mach-ep93xx/crunch.c:53:2: note: here
     case THREAD_NOTIFY_EXIT:
     ^~~~

Notice that, in this particular case, the code comment is
modified in accordance with what GCC is expecting to find.

Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
2019-08-09 19:53:35 -05:00
Gustavo A. R. Silva
fccf01b647 scsi: fas216: Mark expected switch fall-throughs
Mark switch cases where we are expecting to fall through.

Fix the following warnings (Building: rpc_defconfig arm):

drivers/scsi/arm/fas216.c: In function ‘fas216_disconnect_intr’:
drivers/scsi/arm/fas216.c:913:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
   if (fas216_get_last_msg(info, info->scsi.msgin_fifo) == ABORT) {
      ^
drivers/scsi/arm/fas216.c:919:2: note: here
  default:    /* huh?     */
  ^~~~~~~
drivers/scsi/arm/fas216.c: In function ‘fas216_kick’:
drivers/scsi/arm/fas216.c:1959:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
   fas216_allocate_tag(info, SCpnt);
   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/arm/fas216.c:1960:2: note: here
  case TYPE_OTHER:
  ^~~~
drivers/scsi/arm/fas216.c: In function ‘fas216_busservice_intr’:
drivers/scsi/arm/fas216.c:1413:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
   fas216_stoptransfer(info);
   ^~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/arm/fas216.c:1414:2: note: here
  case STATE(STAT_STATUS, PHASE_SELSTEPS):/* Sel w/ steps -> Status       */
  ^~~~
drivers/scsi/arm/fas216.c:1424:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
   fas216_stoptransfer(info);
   ^~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/arm/fas216.c:1425:2: note: here
  case STATE(STAT_MESGIN, PHASE_COMMAND): /* Command -> Message In */
  ^~~~
drivers/scsi/arm/fas216.c: In function ‘fas216_funcdone_intr’:
drivers/scsi/arm/fas216.c:1573:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
   if ((stat & STAT_BUSMASK) == STAT_MESGIN) {
      ^
drivers/scsi/arm/fas216.c:1579:2: note: here
  default:
  ^~~~~~~
drivers/scsi/arm/fas216.c: In function ‘fas216_handlesync’:
drivers/scsi/arm/fas216.c:605:20: warning: this statement may fall through [-Wimplicit-fallthrough=]
   info->scsi.phase = PHASE_MSGOUT_EXPECT;
   ~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~
drivers/scsi/arm/fas216.c:607:2: note: here
  case async:
  ^~~~

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
2019-08-09 19:53:35 -05:00
Gustavo A. R. Silva
5f163f331b pcmcia: db1xxx_ss: Mark expected switch fall-throughs
Mark switch cases where we are expecting to fall through.

This patch fixes the following warnings (Building: db1xxx_defconfig mips):

drivers/pcmcia/db1xxx_ss.c:257:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
drivers/pcmcia/db1xxx_ss.c:269:3: warning: this statement may fall through [-Wimplicit-fallthrough=]

Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
2019-08-09 19:53:04 -05:00
Gustavo A. R. Silva
70a2783c18 video: fbdev: omapfb_main: Mark expected switch fall-throughs
Mark switch cases where we are expecting to fall through.

This patch fixes the following warning (Building: omap1_defconfig arm):

drivers/watchdog/wdt285.c:170:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
drivers/watchdog/ar7_wdt.c:237:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
drivers/video/fbdev/omap/omapfb_main.c:449:23: warning: this statement may fall through [-Wimplicit-fallthrough=]
drivers/video/fbdev/omap/omapfb_main.c:1549:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
drivers/video/fbdev/omap/omapfb_main.c:1547:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
drivers/video/fbdev/omap/omapfb_main.c:1545:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
drivers/video/fbdev/omap/omapfb_main.c:1543:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
drivers/video/fbdev/omap/omapfb_main.c:1540:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
drivers/video/fbdev/omap/omapfb_main.c:1538:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
drivers/video/fbdev/omap/omapfb_main.c:1535:3: warning: this statement may fall through [-Wimplicit-fallthrough=]

Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
2019-08-09 19:51:52 -05:00
Gustavo A. R. Silva
40ad2de37f watchdog: riowd: Mark expected switch fall-through
Mark switch cases where we are expecting to fall through.

This patch fixes the following warnings (Building: sparc64):

drivers/watchdog/riowd.c: In function ‘riowd_ioctl’:
drivers/watchdog/riowd.c:136:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
   riowd_writereg(p, riowd_timeout, WDTO_INDEX);
   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/watchdog/riowd.c:139:2: note: here
  case WDIOC_GETTIMEOUT:
  ^~~~

Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
2019-08-09 19:51:01 -05:00
Gustavo A. R. Silva
7b7331511e s390/net: Mark expected switch fall-throughs
Mark switch cases where we are expecting to fall through.

This patch fixes the following warnings (Building: s390):

drivers/s390/net/ctcm_fsms.c: In function ‘ctcmpc_chx_attnbusy’:
drivers/s390/net/ctcm_fsms.c:1703:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
   if (grp->changed_side == 1) {
      ^
drivers/s390/net/ctcm_fsms.c:1707:2: note: here
  case MPCG_STATE_XID0IOWAIX:
  ^~~~

drivers/s390/net/ctcm_mpc.c: In function ‘ctc_mpc_alloc_channel’:
drivers/s390/net/ctcm_mpc.c:358:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
   if (callback)
      ^
drivers/s390/net/ctcm_mpc.c:360:2: note: here
  case MPCG_STATE_XID0IOWAIT:
  ^~~~

drivers/s390/net/ctcm_mpc.c: In function ‘mpc_action_timeout’:
drivers/s390/net/ctcm_mpc.c:1469:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
   if ((fsm_getstate(rch->fsm) == CH_XID0_PENDING) &&
      ^
drivers/s390/net/ctcm_mpc.c:1472:2: note: here
  default:
  ^~~~~~~
drivers/s390/net/ctcm_mpc.c: In function ‘mpc_send_qllc_discontact’:
drivers/s390/net/ctcm_mpc.c:2087:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
   if (grp->estconnfunc) {
      ^
drivers/s390/net/ctcm_mpc.c:2092:2: note: here
  case MPCG_STATE_FLOWC:
  ^~~~

drivers/s390/net/qeth_l2_main.c: In function ‘qeth_l2_process_inbound_buffer’:
drivers/s390/net/qeth_l2_main.c:328:7: warning: this statement may fall through [-Wimplicit-fallthrough=]
    if (IS_OSN(card)) {
       ^
drivers/s390/net/qeth_l2_main.c:337:3: note: here
   default:
   ^~~~~~~

Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
2019-08-09 19:50:01 -05:00
Gustavo A. R. Silva
3d86c7ad56 crypto: ux500/crypt: Mark expected switch fall-throughs
Mark switch cases where we are expecting to fall through.

This patch fixes the following warning (Building: arm):

drivers/crypto/ux500/cryp/cryp.c: In function ‘cryp_save_device_context’:
drivers/crypto/ux500/cryp/cryp.c:316:16: warning: this statement may fall through [-Wimplicit-fallthrough=]
   ctx->key_4_r = readl_relaxed(&src_reg->key_4_r);
drivers/crypto/ux500/cryp/cryp.c:318:2: note: here
  case CRYP_KEY_SIZE_192:
  ^~~~
drivers/crypto/ux500/cryp/cryp.c:320:16: warning: this statement may fall through [-Wimplicit-fallthrough=]
   ctx->key_3_r = readl_relaxed(&src_reg->key_3_r);
drivers/crypto/ux500/cryp/cryp.c:322:2: note: here
  case CRYP_KEY_SIZE_128:
  ^~~~
drivers/crypto/ux500/cryp/cryp.c:324:16: warning: this statement may fall through [-Wimplicit-fallthrough=]
   ctx->key_2_r = readl_relaxed(&src_reg->key_2_r);
drivers/crypto/ux500/cryp/cryp.c:326:2: note: here
  default:
  ^~~~~~~
In file included from ./include/linux/io.h:13:0,
                 from drivers/crypto/ux500/cryp/cryp_p.h:14,
                 from drivers/crypto/ux500/cryp/cryp.c:15:
drivers/crypto/ux500/cryp/cryp.c: In function ‘cryp_restore_device_context’:
./arch/arm/include/asm/io.h:92:22: warning: this statement may fall through [-Wimplicit-fallthrough=]
 #define __raw_writel __raw_writel
                      ^
./arch/arm/include/asm/io.h:299:29: note: in expansion of macro ‘__raw_writel’
 #define writel_relaxed(v,c) __raw_writel((__force u32) cpu_to_le32(v),c)
                             ^~~~~~~~~~~~
drivers/crypto/ux500/cryp/cryp.c:363:3: note: in expansion of macro ‘writel_relaxed’
   writel_relaxed(ctx->key_4_r, &reg->key_4_r);
   ^~~~~~~~~~~~~~
drivers/crypto/ux500/cryp/cryp.c:365:2: note: here
  case CRYP_KEY_SIZE_192:
  ^~~~
In file included from ./include/linux/io.h:13:0,
                 from drivers/crypto/ux500/cryp/cryp_p.h:14,
                 from drivers/crypto/ux500/cryp/cryp.c:15:
./arch/arm/include/asm/io.h:92:22: warning: this statement may fall through [-Wimplicit-fallthrough=]
 #define __raw_writel __raw_writel
                      ^
./arch/arm/include/asm/io.h:299:29: note: in expansion of macro ‘__raw_writel’
 #define writel_relaxed(v,c) __raw_writel((__force u32) cpu_to_le32(v),c)
                             ^~~~~~~~~~~~
drivers/crypto/ux500/cryp/cryp.c:367:3: note: in expansion of macro ‘writel_relaxed’
   writel_relaxed(ctx->key_3_r, &reg->key_3_r);
   ^~~~~~~~~~~~~~
drivers/crypto/ux500/cryp/cryp.c:369:2: note: here
  case CRYP_KEY_SIZE_128:
  ^~~~
In file included from ./include/linux/io.h:13:0,
                 from drivers/crypto/ux500/cryp/cryp_p.h:14,
                 from drivers/crypto/ux500/cryp/cryp.c:15:
./arch/arm/include/asm/io.h:92:22: warning: this statement may fall through [-Wimplicit-fallthrough=]
 #define __raw_writel __raw_writel
                      ^
./arch/arm/include/asm/io.h:299:29: note: in expansion of macro ‘__raw_writel’
 #define writel_relaxed(v,c) __raw_writel((__force u32) cpu_to_le32(v),c)
                             ^~~~~~~~~~~~
drivers/crypto/ux500/cryp/cryp.c:371:3: note: in expansion of macro ‘writel_relaxed’
   writel_relaxed(ctx->key_2_r, &reg->key_2_r);
   ^~~~~~~~~~~~~~
drivers/crypto/ux500/cryp/cryp.c:373:2: note: here
  default:
  ^~~~~~~

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
2019-08-09 19:49:04 -05:00
Gustavo A. R. Silva
d51c61637b watchdog: wdt977: Mark expected switch fall-through
Mark switch cases where we are expecting to fall through.

This patch fixes the following warning (Building: arm):

drivers/watchdog/wdt977.c: In function ‘wdt977_ioctl’:
  LD [M]  drivers/media/platform/vicodec/vicodec.o
drivers/watchdog/wdt977.c:400:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
   wdt977_keepalive();
   ^~~~~~~~~~~~~~~~~~
drivers/watchdog/wdt977.c:403:2: note: here
  case WDIOC_GETTIMEOUT:
  ^~~~

Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
2019-08-09 19:48:41 -05:00
Gustavo A. R. Silva
24f2161887 watchdog: scx200_wdt: Mark expected switch fall-through
Mark switch cases where we are expecting to fall through.

This patch fixes the following warning (Building: i386):

drivers/watchdog/scx200_wdt.c: In function ‘scx200_wdt_ioctl’:
drivers/watchdog/scx200_wdt.c:188:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
   scx200_wdt_ping();
   ^~~~~~~~~~~~~~~~~
drivers/watchdog/scx200_wdt.c:189:2: note: here
  case WDIOC_GETTIMEOUT:
  ^~~~

Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
2019-08-09 19:48:13 -05:00
Gustavo A. R. Silva
d259f94f72 watchdog: Mark expected switch fall-throughs
Mark switch cases where we are expecting to fall through.

This patch fixes the following warnings:

drivers/watchdog/ar7_wdt.c: warning: this statement may fall
through [-Wimplicit-fallthrough=]:  => 237:3
drivers/watchdog/pcwd.c: warning: this statement may fall
through [-Wimplicit-fallthrough=]:  => 653:3
drivers/watchdog/sb_wdog.c: warning: this statement may fall
through [-Wimplicit-fallthrough=]:  => 204:3
drivers/watchdog/wdt.c: warning: this statement may fall
through [-Wimplicit-fallthrough=]:  => 391:3

Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
2019-08-09 19:47:24 -05:00
Gustavo A. R. Silva
e9d81fc5b2 ARM: signal: Mark expected switch fall-through
Mark switch cases where we are expecting to fall through.

This patch fixes the following warning:

arch/arm/kernel/signal.c: In function 'do_signal':
arch/arm/kernel/signal.c:598:12: warning: this statement may fall through [-Wimplicit-fallthrough=]
    restart -= 2;
    ~~~~~~~~^~~~
arch/arm/kernel/signal.c:599:3: note: here
   case -ERESTARTNOHAND:
   ^~~~

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
2019-08-09 19:47:15 -05:00
Gustavo A. R. Silva
9039782047 mfd: omap-usb-host: Mark expected switch fall-throughs
Mark switch cases where we are expecting to fall through.

This patch fixes the following warnings:

drivers/mfd/omap-usb-host.c: In function 'usbhs_runtime_resume':
drivers/mfd/omap-usb-host.c:303:7: warning: this statement may fall through [-Wimplicit-fallthrough=]
    if (!IS_ERR(omap->hsic480m_clk[i])) {
       ^
drivers/mfd/omap-usb-host.c:313:3: note: here
   case OMAP_EHCI_PORT_MODE_TLL:
   ^~~~
drivers/mfd/omap-usb-host.c: In function 'usbhs_runtime_suspend':
drivers/mfd/omap-usb-host.c:345:7: warning: this statement may fall through [-Wimplicit-fallthrough=]
    if (!IS_ERR(omap->hsic480m_clk[i]))
       ^
drivers/mfd/omap-usb-host.c:349:3: note: here
   case OMAP_EHCI_PORT_MODE_TLL:
   ^~~~

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
2019-08-09 19:46:52 -05:00
Gustavo A. R. Silva
795952d9f4 mfd: db8500-prcmu: Mark expected switch fall-throughs
Mark switch cases where we are expecting to fall through.

This patch fixes the following warnings:

drivers/mfd/db8500-prcmu.c: In function 'dsiclk_rate':
drivers/mfd/db8500-prcmu.c:1592:7: warning: this statement may fall through [-Wimplicit-fallthrough=]
   div *= 2;
   ~~~~^~~~
drivers/mfd/db8500-prcmu.c:1593:2: note: here
  case PRCM_DSI_PLLOUT_SEL_PHI_2:
  ^~~~
drivers/mfd/db8500-prcmu.c:1594:7: warning: this statement may fall through [-Wimplicit-fallthrough=]
   div *= 2;
   ~~~~^~~~
drivers/mfd/db8500-prcmu.c:1595:2: note: here
  case PRCM_DSI_PLLOUT_SEL_PHI:
  ^~~~

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
2019-08-09 19:46:05 -05:00
Gustavo A. R. Silva
3da6bd945b ARM: OMAP: dma: Mark expected switch fall-throughs
Mark switch cases where we are expecting to fall through.

This patch fixes the following warnings:

arch/arm/plat-omap/dma.c: In function 'omap_set_dma_src_burst_mode':
arch/arm/plat-omap/dma.c:384:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
   if (dma_omap2plus()) {
      ^
arch/arm/plat-omap/dma.c:393:2: note: here
  case OMAP_DMA_DATA_BURST_16:
  ^~~~
arch/arm/plat-omap/dma.c:394:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
   if (dma_omap2plus()) {
      ^
arch/arm/plat-omap/dma.c:402:2: note: here
  default:
  ^~~~~~~
arch/arm/plat-omap/dma.c: In function 'omap_set_dma_dest_burst_mode':
arch/arm/plat-omap/dma.c:473:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
   if (dma_omap2plus()) {
      ^
arch/arm/plat-omap/dma.c:481:2: note: here
  default:
  ^~~~~~~

Notice that, in this particular case, the code comment is
modified in accordance with what GCC is expecting to find.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
2019-08-09 19:45:41 -05:00
Gustavo A. R. Silva
e7c0c9f602 ARM: alignment: Mark expected switch fall-throughs
Mark switch cases where we are expecting to fall through.

This patch fixes the following warnings:

arch/arm/mm/alignment.c: In function 'thumb2arm':
arch/arm/mm/alignment.c:688:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
   if ((tinstr & (3 << 9)) == 0x0400) {
      ^
arch/arm/mm/alignment.c:700:2: note: here
  default:
  ^~~~~~~
arch/arm/mm/alignment.c: In function 'do_alignment_t32_to_handler':
arch/arm/mm/alignment.c:753:15: warning: this statement may fall through [-Wimplicit-fallthrough=]
   poffset->un = (tinst2 & 0xff) << 2;
   ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
arch/arm/mm/alignment.c:754:2: note: here
  case 0xe940:
  ^~~~

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
2019-08-09 19:45:31 -05:00
Gustavo A. R. Silva
9b76ad3a9c ARM: tegra: Mark expected switch fall-through
Mark switch cases where we are expecting to fall through.

This patch fixes the following warning:

arch/arm/mach-tegra/reset.c: In function 'tegra_cpu_reset_handler_enable':
arch/arm/mach-tegra/reset.c:72:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
   tegra_cpu_reset_handler_set(reset_address);
   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm/mach-tegra/reset.c:74:2: note: here
  case 0:
  ^~~~

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
2019-08-09 19:45:22 -05:00
Gustavo A. R. Silva
2d0e988d84 ARM/hw_breakpoint: Mark expected switch fall-throughs
Mark switch cases where we are expecting to fall through.

This patch fixes the following warnings:

arch/arm/kernel/hw_breakpoint.c: In function 'hw_breakpoint_arch_parse':
arch/arm/kernel/hw_breakpoint.c:609:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
   if (hw->ctrl.len == ARM_BREAKPOINT_LEN_2)
      ^
arch/arm/kernel/hw_breakpoint.c:611:2: note: here
  case 3:
  ^~~~
arch/arm/kernel/hw_breakpoint.c:613:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
   if (hw->ctrl.len == ARM_BREAKPOINT_LEN_1)
      ^
arch/arm/kernel/hw_breakpoint.c:615:2: note: here
  default:
  ^~~~~~~
arch/arm/kernel/hw_breakpoint.c: In function 'arch_build_bp_info':
arch/arm/kernel/hw_breakpoint.c:544:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
   if ((hw->ctrl.type != ARM_BREAKPOINT_EXECUTE)
      ^
arch/arm/kernel/hw_breakpoint.c:547:2: note: here
  default:
  ^~~~~~~
In file included from include/linux/kernel.h:11,
                 from include/linux/list.h:9,
                 from include/linux/preempt.h:11,
                 from include/linux/hardirq.h:5,
                 from arch/arm/kernel/hw_breakpoint.c:16:
arch/arm/kernel/hw_breakpoint.c: In function 'hw_breakpoint_pending':
include/linux/compiler.h:78:22: warning: this statement may fall through [-Wimplicit-fallthrough=]
 # define unlikely(x) __builtin_expect(!!(x), 0)
                      ^~~~~~~~~~~~~~~~~~~~~~~~~~
include/asm-generic/bug.h:136:2: note: in expansion of macro 'unlikely'
  unlikely(__ret_warn_on);     \
  ^~~~~~~~
arch/arm/kernel/hw_breakpoint.c:863:3: note: in expansion of macro 'WARN'
   WARN(1, "Asynchronous watchpoint exception taken. Debugging results may be unreliable\n");
   ^~~~
arch/arm/kernel/hw_breakpoint.c:864:2: note: here
  case ARM_ENTRY_SYNC_WATCHPOINT:
  ^~~~
arch/arm/kernel/hw_breakpoint.c: In function 'core_has_os_save_restore':
arch/arm/kernel/hw_breakpoint.c:910:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
   if (oslsr & ARM_OSLSR_OSLM0)
      ^
arch/arm/kernel/hw_breakpoint.c:912:2: note: here
  default:
  ^~~~~~~

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
2019-08-09 19:45:01 -05:00