Commit Graph

519590 Commits

Author SHA1 Message Date
Arnd Bergmann
cc1c1b5d21 mvebu fixes for 4.1 (part 2)
Fix the main PLL frequency on Armada 375, 38x and 39x SoCs
 Add clock-names to CuBox Si5351 clk generator
 Add dts entries in the MAINTAINERS file
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Merge tag 'mvebu-fixes-4.1-2' of git://git.infradead.org/linux-mvebu into fixes

Merge "mvebu fixes for 4.1 (part 2)" from Gregory CLEMENT:

Fix the main PLL frequency on Armada 375, 38x and 39x SoCs
Add clock-names to CuBox Si5351 clk generator
Add dts entries in the MAINTAINERS file

* tag 'mvebu-fixes-4.1-2' of git://git.infradead.org/linux-mvebu:
  MAINTAINERS: Add dts entries for some of the Marvell SoCs
  ARM: dove: Add clock-names to CuBox Si5351 clk generator
  ARM: mvebu: Fix the main PLL frequency on Armada 375, 38x and 39x SoCs
2015-05-15 17:13:06 +02:00
Gregory CLEMENT
31c17ac98f MAINTAINERS: Add dts entries for some of the Marvell SoCs
Since many releases, the modifications of the mvebu and berlin device
tree files are merged through the mvebu subsystem. This patch makes it
official in order to help the contributors using the get_maintainer.pl
to find the accurate peoples.

In the same time, updated the mvebu description which now includes the
kirkwood SoCs and new Armada SoCs.

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Acked-by: Andrew Lunn <andrew@lunn.ch>
2015-05-15 14:25:43 +02:00
Ingo Molnar
60d5ddeabd Merge branch 'liblockdep-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux into perf/urgent
Pull liblockdep fixes from Sasha Levin:

 "two fixes that deal with compilation errors in liblockdep."

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-05-15 08:43:15 +02:00
Dave Airlie
4723132456 Merge tag 'drm-intel-fixes-2015-05-13' of git://anongit.freedesktop.org/drm-intel into drm-fixes
fix one gpu hang on resume.

* tag 'drm-intel-fixes-2015-05-13' of git://anongit.freedesktop.org/drm-intel:
  drm/i915: Avoid GPU hang when coming out of s3 or s4
2015-05-15 15:21:18 +10:00
Dave Airlie
e52f649e5b Merge branch 'drm-fixes-4.1' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
radeon minor fixes, and pci id addition.
* 'drm-fixes-4.1' of git://people.freedesktop.org/~agd5f/linux:
  drm/radeon: don't do mst probing if MST isn't enabled.
  drm/radeon: add new bonaire pci id
  drm/radeon: fix VM_CONTEXT*_PAGE_TABLE_END_ADDR handling
2015-05-15 15:20:45 +10:00
Theodore Ts'o
b9576fc362 ext4: fix an ext3 collapse range regression in xfstests
The xfstests test suite assumes that an attempt to collapse range on
the range (0, 1) will return EOPNOTSUPP if the file system does not
support collapse range.  Commit 280227a75b: "ext4: move check under
lock scope to close a race" broke this, and this caused xfstests to
fail when run when testing file systems that did not have the extents
feature enabled.

Reported-by: Eric Whitney <enwlinux@gmail.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-05-15 00:24:10 -04:00
Linus Torvalds
f0897f4cc0 ACPI fixes for v4.1-rc4
- The recent ACPICA commit that set the ACPI _REV return value to 2
    (which is the value always used by Windows and now mandated by the
    spec too) in order to prevent the firmware people from using it to
    play tricks with us caused a serious audio regression to happen on
    Dell XPS 13 (the AML on that machine uses the _REV return value to
    decide how to expose audio to the OS and does that to hide the
    lack of proper support for its I2S audio in Linux), so revert that
    commit for now and we'll revisit the issue in the next cycle.
 
  - Ensure that the ordering of acpi_reserve_resources() with respect
    to the rest of the ACPI initialization sequence will always be
    the same, or the IO or memory region occupied by the ACPI fixed
    registers may be assigned to a PCI host bridge as a result of
    a race and random breakage ensues going forward.
 
 /
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Merge tag 'pm+acpi-4.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI fixes from Rafael Wysocki:
 "Two fixes here, one revert of a recent ACPICA commit that broke audio
  support on one Dell machine and a fix for a long-standing issue that
  may cause systems to break randomly during boot.

  Specifics:

   - The recent ACPICA commit that set the ACPI _REV return value to 2
     (which is the value always used by Windows and now mandated by the
     spec too) in order to prevent the firmware people from using it to
     play tricks with us caused a serious audio regression to happen on
     Dell XPS 13 (the AML on that machine uses the _REV return value to
     decide how to expose audio to the OS and does that to hide the lack
     of proper support for its I2S audio in Linux), so revert that
     commit for now and we'll revisit the issue in the next cycle.

   - Ensure that the ordering of acpi_reserve_resources() with respect
     to the rest of the ACPI initialization sequence will always be the
     same, or the IO or memory region occupied by the ACPI fixed
     registers may be assigned to a PCI host bridge as a result of a
     race and random breakage ensues going forward"

* tag 'pm+acpi-4.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  Revert "ACPICA: Permanently set _REV to the value '2'."
  ACPI / init: Fix the ordering of acpi_reserve_resources()
2015-05-14 18:40:16 -07:00
Linus Torvalds
fc8c540b1d arm64 fixes:
- Fix potential memory leak in perf PMU probing
 - BPF sign extension fix for 64-bit immediates
 - Fix build failure with unusual configuration
 - Revert unused and broken branch patching from alternative code
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:

 - fix potential memory leak in perf PMU probing

 - BPF sign extension fix for 64-bit immediates

 - fix build failure with unusual configuration

 - revert unused and broken branch patching from alternative code

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: perf: fix memory leak when probing PMU PPIs
  arm64: bpf: fix signedness bug in loading 64-bit immediate
  arm64: mm: Fix build error with CONFIG_SPARSEMEM_VMEMMAP disabled
  Revert "arm64: alternative: Allow immediate branch as alternative instruction"
2015-05-14 18:35:33 -07:00
Linus Torvalds
3c25a75ee0 Merge branch 'dmi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
Pull dmi fixes from Jean Delvare.

* 'dmi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  firmware: dmi_scan: Fix ordering of product_uuid
  firmware: dmi_scan: Simplified displayed version
2015-05-14 18:02:15 -07:00
Mel Gorman
b0dc2b9bb4 mm, numa: really disable NUMA balancing by default on single node machines
NUMA balancing is meant to be disabled by default on UMA machines but
the check is using nr_node_ids (highest node) instead of
num_online_nodes (online nodes).

The consequences are that a UMA machine with a node ID of 1 or higher
will enable NUMA balancing.  This will incur useless overhead due to
minor faults with the impact depending on the workload.  These are the
impact on the stats when running a kernel build on a single node machine
whose node ID happened to be 1:

  			       vanilla     patched
  NUMA base PTE updates          5113158           0
  NUMA huge PMD updates              643           0
  NUMA page range updates        5442374           0
  NUMA hint faults               2109622           0
  NUMA hint local faults         2109622           0
  NUMA hint local percent            100         100
  NUMA pages migrated                  0           0

Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: <stable@vger.kernel.org>	[3.8+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-05-14 17:55:51 -07:00
Jingoo Han
b77017555c MAINTAINERS: update Jingoo Han's email address
Change my private email address.

Signed-off-by: Jingoo Han <jingoohan1@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-05-14 17:55:51 -07:00
Hui Zhu
1ae7013dfa CMA: page_isolation: check buddy before accessing it
I had an issue:

    Unable to handle kernel NULL pointer dereference at virtual address 0000082a
    pgd = cc970000
    [0000082a] *pgd=00000000
    Internal error: Oops: 5 [#1] PREEMPT SMP ARM
    PC is at get_pageblock_flags_group+0x5c/0xb0
    LR is at unset_migratetype_isolate+0x148/0x1b0
    pc : [<c00cc9a0>]    lr : [<c0109874>]    psr: 80000093
    sp : c7029d00  ip : 00000105  fp : c7029d1c
    r10: 00000001  r9 : 0000000a  r8 : 00000004
    r7 : 60000013  r6 : 000000a4  r5 : c0a357e4  r4 : 00000000
    r3 : 00000826  r2 : 00000002  r1 : 00000000  r0 : 0000003f
    Flags: Nzcv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment user
    Control: 10c5387d  Table: 2cb7006a  DAC: 00000015
    Backtrace:
        get_pageblock_flags_group+0x0/0xb0
        unset_migratetype_isolate+0x0/0x1b0
        undo_isolate_page_range+0x0/0xdc
        __alloc_contig_range+0x0/0x34c
        alloc_contig_range+0x0/0x18

This issue is because when calling unset_migratetype_isolate() to unset
a part of CMA memory, it try to access the buddy page to get its status:

		if (order >= pageblock_order) {
			page_idx = page_to_pfn(page) & ((1 << MAX_ORDER) - 1);
			buddy_idx = __find_buddy_index(page_idx, order);
			buddy = page + (buddy_idx - page_idx);

			if (!is_migrate_isolate_page(buddy)) {

But the begin addr of this part of CMA memory is very close to a part of
memory that is reserved at boot time (not in buddy system).  So add a
check before accessing it.

[akpm@linux-foundation.org: use conventional code layout]
Signed-off-by: Hui Zhu <zhuhui@xiaomi.com>
Suggested-by: Laura Abbott <labbott@redhat.com>
Suggested-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-05-14 17:55:51 -07:00
Josh Triplett
929aa5b250 uidgid: make uid_valid and gid_valid work with !CONFIG_MULTIUSER
{u,g}id_valid call {u,g}id_eq, which calls __k{u,g}id_val on both
arguments and compares.  With !CONFIG_MULTIUSER, __k{u,g}id_val return a
constant 0, which makes {u,g}id_valid always return false.  Change
{u,g}id_valid to compare their argument against -1 instead.  That produces
identical results in the normal CONFIG_MULTIUSER=y case, but with
!CONFIG_MULTIUSER will make {u,g}id_valid constant-fold into "return
true;" rather than "return false;".

This fixes uses of devpts without CONFIG_MULTIUSER.

Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Reported-by: Fengguang Wu <fengguang.wu@intel.com>,
Cc: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-05-14 17:55:51 -07:00
Vladimir Davydov
499611ed45 kernfs: do not account ino_ida allocations to memcg
root->ino_ida is used for kernfs inode number allocations. Since IDA has
a layered structure, different IDs can reside on the same layer, which
is currently accounted to some memory cgroup. The problem is that each
kmem cache of a memory cgroup has its own directory on sysfs (under
/sys/fs/kernel/<cache-name>/cgroup). If the inode number of such a
directory or any file in it gets allocated from a layer accounted to the
cgroup which the cache is created for, the cgroup will get pinned for
good, because one has to free all kmem allocations accounted to a cgroup
in order to release it and destroy all its kmem caches. That said we
must not account layers of ino_ida to any memory cgroup.

Since per net init operations may create new sysfs entries directly
(e.g. lo device) or indirectly (nf_conntrack creates a new kmem cache
per each namespace, which, in turn, creates new sysfs entries), an easy
way to reproduce this issue is by creating network namespace(s) from
inside a kmem-active memory cgroup.

Signed-off-by: Vladimir Davydov <vdavydov@parallels.com>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: <stable@vger.kernel.org>	[4.0.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-05-14 17:55:51 -07:00
Vladimir Davydov
8f4fc071b1 gfp: add __GFP_NOACCOUNT
Not all kmem allocations should be accounted to memcg.  The following
patch gives an example when accounting of a certain type of allocations to
memcg can effectively result in a memory leak.  This patch adds the
__GFP_NOACCOUNT flag which if passed to kmalloc and friends will force the
allocation to go through the root cgroup.  It will be used by the next
patch.

Note, since in case of kmemleak enabled each kmalloc implies yet another
allocation from the kmemleak_object cache, we add __GFP_NOACCOUNT to
gfp_kmemleak_mask.

Alternatively, we could introduce a per kmem cache flag disabling
accounting for all allocations of a particular kind, but (a) we would not
be able to bypass accounting for kmalloc then and (b) a kmem cache with
this flag set could not be merged with a kmem cache without this flag,
which would increase the number of global caches and therefore
fragmentation even if the memory cgroup controller is not used.

Despite its generic name, currently __GFP_NOACCOUNT disables accounting
only for kmem allocations while user page allocations are always charged.
To catch abusing of this flag, a warning is issued on an attempt of
passing it to mem_cgroup_try_charge.

Signed-off-by: Vladimir Davydov <vdavydov@parallels.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: <stable@vger.kernel.org>	[4.0.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-05-14 17:55:51 -07:00
Andi Kleen
4933f55fe7 tools/vm: fix page-flags build
libabikfs.a doesn't exist anymore, so we now need to link with libapi.a.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-05-14 17:55:51 -07:00
Andrew Morton
f98b733e93 drivers/rtc/rtc-armada38x.c: remove unused local `flags'
Reported-by: Fengguang Wu <fengguang.wu@gmail.com>
Cc: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-05-14 17:55:51 -07:00
Darrick J. Wong
e531d0bceb jbd2: fix r_count overflows leading to buffer overflow in journal recovery
The journal revoke block recovery code does not check r_count for
sanity, which means that an evil value of r_count could result in
the kernel reading off the end of the revoke table and into whatever
garbage lies beyond.  This could crash the kernel, so fix that.

However, in testing this fix, I discovered that the code to write
out the revoke tables also was not correctly checking to see if the
block was full -- the current offset check is fine so long as the
revoke table space size is a multiple of the record size, but this
is not true when either journal_csum_v[23] are set.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: stable@vger.kernel.org
2015-05-14 19:11:50 -04:00
Eryu Guan
2f974865ff ext4: check for zero length extent explicitly
The following commit introduced a bug when checking for zero length extent

5946d08 ext4: check for overlapping extents in ext4_valid_extent_entries()

Zero length extent could pass the check if lblock is zero.

Adding the explicit check for zero length back.

Signed-off-by: Eryu Guan <guaneryu@gmail.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@vger.kernel.org
2015-05-14 19:00:45 -04:00
Lukas Czerner
9d50659406 ext4: fix NULL pointer dereference when journal restart fails
Currently when journal restart fails, we'll have the h_transaction of
the handle set to NULL to indicate that the handle has been effectively
aborted. We handle this situation quietly in the jbd2_journal_stop() and just
free the handle and exit because everything else has been done before we
attempted (and failed) to restart the journal.

Unfortunately there are a number of problems with that approach
introduced with commit

41a5b91319 "jbd2: invalidate handle if jbd2_journal_restart()
fails"

First of all in ext4 jbd2_journal_stop() will be called through
__ext4_journal_stop() where we would try to get a hold of the superblock
by dereferencing h_transaction which in this case would lead to NULL
pointer dereference and crash.

In addition we're going to free the handle regardless of the refcount
which is bad as well, because others up the call chain will still
reference the handle so we might potentially reference already freed
memory.

Moreover it's expected that we'll get aborted handle as well as detached
handle in some of the journalling function as the error propagates up
the stack, so it's unnecessary to call WARN_ON every time we get
detached handle.

And finally we might leak some memory by forgetting to free reserved
handle in jbd2_journal_stop() in the case where handle was detached from
the transaction (h_transaction is NULL).

Fix the NULL pointer dereference in __ext4_journal_stop() by just
calling jbd2_journal_stop() quietly as suggested by Jan Kara. Also fix
the potential memory leak in jbd2_journal_stop() and use proper
handle refcounting before we attempt to free it to avoid use-after-free
issues.

And finally remove all WARN_ON(!transaction) from the code so that we do
not get random traces when something goes wrong because when journal
restart fails we will get to some of those functions.

Cc: stable@vger.kernel.org
Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>
2015-05-14 18:55:18 -04:00
Theodore Ts'o
92c8263910 ext4: remove unused function prototype from ext4.h
The ext4_extent_tree_init() function hasn't been in the ext4 code for
a long time ago, except in an unused function prototype in ext4.h

Google-Bug-Id: 4530137
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-05-14 18:43:36 -04:00
Theodore Ts'o
1b46617b8d ext4: don't save the error information if the block device is read-only
Google-Bug-Id: 20939131
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-05-14 18:37:30 -04:00
Rafael J. Wysocki
4de5167ee0 Merge branches 'acpi-init' and 'acpica'
* acpi-init:
  ACPI / init: Fix the ordering of acpi_reserve_resources()

* acpica:
  Revert "ACPICA: Permanently set _REV to the value '2'."
2015-05-15 00:31:23 +02:00
Theodore Ts'o
8f4d855839 ext4: fix lazytime optimization
We had a fencepost error in the lazytime optimization which means that
timestamp would get written to the wrong inode.

Cc: stable@vger.kernel.org
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-05-14 18:19:01 -04:00
Greg Kroah-Hartman
569192605f USB-serial fixes for v4.1-rc4
Here are a few device-id changes removing a duplicate entry, refining
 another and adding a third.
 
 Signed-off-by: Johan Hovold <johan@kernel.org>
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Merge tag 'usb-serial-4.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-linus

Johan writes:

USB-serial fixes for v4.1-rc4

Here are a few device-id changes removing a duplicate entry, refining
another and adding a third.

Signed-off-by: Johan Hovold <johan@kernel.org>
2015-05-14 12:43:36 -07:00
Brian Norris
db7c727402 mtd: readtest: don't clobber error reports
Commit 2a6a28e792 ("mtd: Make MTD tests cancelable") accidentally
clobbered any read failure reports.

Coverity CID #1296020

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-05-14 09:56:31 -07:00
Krzysztof Kozlowski
e8f9845758 MAINTAINERS: ARM: EXYNOS: Add Krzysztof Kozlowski as co-maintainer
Add Krzysztof Kozlowski as a co-maintainer of Samsung Exynos ARM
architecture to review the patches. Patches will go as usual - picked up
by Kukjin Kim.

Cc: Russell King <linux@arm.linux.org.uk>
Cc: Kukjin Kim <kgene@kernel.org>
Cc: Kevin Hilman <khilman@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Olof Johansson <olof@lixom.net>
Cc: linux-samsung-soc@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Acked-by: Tobias Jakobi <liquid.acid@gmx.net>
Acked-by: Olof Johansson <olof@lixom.net>
Acked-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
2015-05-14 09:46:13 -07:00
Dave Airlie
bed447e7d1 drm/radeon: don't do mst probing if MST isn't enabled.
This causes an oops as we haven't initialised the mst
layer.

Reported-by: Dave Jones <<davej@codemonkey.org.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2015-05-14 11:46:47 -04:00
Jean Delvare
5c1ac56b51 firmware: dmi_scan: Fix ordering of product_uuid
In function dmi_present(), dmi_walk_early() calls dmi_table(), which
calls dmi_decode(), which ultimately calls dmi_save_uuid(). This last
function makes a decision based on the value of global variable
dmi_ver. The problem is that this variable is set right _after_
dmi_walk_early() returns. So dmi_save_uuid() always sees dmi_ver == 0
regardless of the actual version implemented.

This causes /sys/class/dmi/id/product_uuid to always use the old
ordering even on systems implementing DMI/SMBIOS 2.6 or later, which
should use the new ordering.

This is broken since kernel v3.8 for legacy DMI implementations and
since kernel v3.10 for SMBIOS 2 implementations. SMBIOS 3
implementations with the 64-bit entry point are not affected.

The first breakage does not matter much as in practice legacy DMI
implementations are always for versions older than 2.6, which is when
the UUID ordering changed. The second breakage is more problematic as
it affects the vast majority of x86 systems manufactured since 2009.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Fixes: 9f9c9cbb60 ("drivers/firmware/dmi_scan.c: fetch dmi version from SMBIOS if it exists")
Fixes: 79bae42d51 ("dmi_scan: refactor dmi_scan_machine(), {smbios,dmi}_present()")
Acked-by: Zhenzhong Duan <zhenzhong.duan@oracle.com>
Cc: Ben Hutchings <ben@decadent.org.uk>
Cc: Artem Savkov <artem.savkov@gmail.com>
Cc: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Cc: Matt Fleming <matt.fleming@intel.com>
Cc: stable@vger.kernel.org [v3.10+]
2015-05-14 14:40:50 +02:00
Jean Delvare
c24930457d firmware: dmi_scan: Simplified displayed version
The trailing .x adds no information for the reader, and if anyone
tries to parse that line, this is more work as they have 3 different
formats to handle instead of 2. Plus, this makes backporting fixes
harder.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Fixes: 95be58df74 ("firmware: dmi_scan: Use full dmi version for SMBIOS3")
Cc: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
2015-05-14 14:40:50 +02:00
Krzysztof Kozlowski
c1f0ecff49 ARM: EXYNOS: Use of_machine_is_compatible instead of soc_is_exynos4
of_machine_is_compatible() seems to be preferred over soc_is_exynos4().

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-05-14 11:43:59 +09:00
Krzysztof Kozlowski
6f024978e7 ARM: EXYNOS: Fix failed second suspend on Exynos4
On Exynos4412 boards (Trats2, Odroid U3) after enabling L2 cache in
56b60b8bce ("ARM: 8265/1: dts: exynos4: Add nodes for L2 cache
controller") the second suspend to RAM failed. First suspend worked fine
but the next one hang just after powering down of secondary CPUs (system
consumed energy as it would be running but was not responsive).

The issue was caused by enabling delayed reset assertion for CPU0 just
after issuing power down of cores. This was introduced for Exynos4 in
13cfa6c4f7 ("ARM: EXYNOS: Fix CPU idle clock down after CPU off").

The whole behavior is not well documented but after checking with vendor
code this should be done like this (on Exynos4):
1. Enable delayed reset assertion when system is running (for all CPUs).
2. Disable delayed reset assertion before suspending the system.
   This can be done after powering off secondary CPUs.
3. Re-enable the delayed reset assertion when system is resumed.

Fixes: 13cfa6c4f7 ("ARM: EXYNOS: Fix CPU idle clock down after CPU off")
Cc: <stable@vger.kernel.org>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Tested-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Tested-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-05-14 11:32:18 +09:00
Greg Kroah-Hartman
ec94efcdad The usual mixed bag of fixes for IIO in the 4.1 cycle.
Second version of this pull request as a small fix to a fix turned
 up before Greg pulled it for a cc10001 patch near the top of the tree.
 
 One core fix
 
 * Set updated for a iio kfifo was incorrectly set to false during a failed
   update, resulting in atttempts to repeat the failed operation appearing
   to succeed.
 
 This time I've decided to list the driver fixes in alphabetical order rather
 than 'randomly'.
 
 * axp288_adc - a recent change added a check for valid info masks when
   reading channels from consumer drivers.
 * bmp280 - temperature compensation was failing to read the tfine value, hence
   causing a temperature of 0 to always be returned and incorrect presure
   measurements.
 * cc10001 - Fix channel number mapping when some channels are reserved for
   remote CPUs. Fix an issue with the use of the power-up/power-down register
   (basically wrong polarity). Fix an issue due to the missinterpretting the
   return value from regulator_get_voltage. Add a delay before the start bit
   as recommended for the hardware to avoid data corruption.
 * hid pressure - fix channel spec of modfiied, but no modifier (which makes no
   sense!)
 * hid proximity - fix channel spec of modified, but no modifier (which makes
   no sense!). Fix a memory leak in the probe function.
 * mcp320x - occasional incorrect readings on dma using spi busses due to
   cacheline corruption. Fixed by forcing ___cacheline_aligned for the buffers.
 * mma9551 - buffer overrun fix (miss specified maximum length of buffers)
 * mma9553 - endian fix on status message. Add an enable element for activity
   channel. Input checking for activity period to avoid rather unpredictable
   results.
 * spmi-vadc - fix an overflow in the output value normalization seen on some
   boards.
 * st-snesors - oops due to use of a mutex that is not yet initialized during
   probe.
 * xilinx adc - Some wrong register addresses, a wrong address for vccaux
   channel, incorrect scale on VREFP and incorrect sign on VREFN.
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Merge tag 'iio-fixes-for-4.1a-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus

Jonathan writes:

The usual mixed bag of fixes for IIO in the 4.1 cycle.

Second version of this pull request as a small fix to a fix turned
up before Greg pulled it for a cc10001 patch near the top of the tree.

One core fix

* Set updated for a iio kfifo was incorrectly set to false during a failed
  update, resulting in atttempts to repeat the failed operation appearing
  to succeed.

This time I've decided to list the driver fixes in alphabetical order rather
than 'randomly'.

* axp288_adc - a recent change added a check for valid info masks when
  reading channels from consumer drivers.
* bmp280 - temperature compensation was failing to read the tfine value, hence
  causing a temperature of 0 to always be returned and incorrect presure
  measurements.
* cc10001 - Fix channel number mapping when some channels are reserved for
  remote CPUs. Fix an issue with the use of the power-up/power-down register
  (basically wrong polarity). Fix an issue due to the missinterpretting the
  return value from regulator_get_voltage. Add a delay before the start bit
  as recommended for the hardware to avoid data corruption.
* hid pressure - fix channel spec of modfiied, but no modifier (which makes no
  sense!)
* hid proximity - fix channel spec of modified, but no modifier (which makes
  no sense!). Fix a memory leak in the probe function.
* mcp320x - occasional incorrect readings on dma using spi busses due to
  cacheline corruption. Fixed by forcing ___cacheline_aligned for the buffers.
* mma9551 - buffer overrun fix (miss specified maximum length of buffers)
* mma9553 - endian fix on status message. Add an enable element for activity
  channel. Input checking for activity period to avoid rather unpredictable
  results.
* spmi-vadc - fix an overflow in the output value normalization seen on some
  boards.
* st-snesors - oops due to use of a mutex that is not yet initialized during
  probe.
* xilinx adc - Some wrong register addresses, a wrong address for vccaux
  channel, incorrect scale on VREFP and incorrect sign on VREFN.
2015-05-13 11:51:14 -07:00
Arnd Bergmann
6c28ab9fef The previous two suspend related fixes both fix the same issue
so only one of them (the newer one) is actually needed.
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Merge tag 'v4.1-rockchip-socfixes2' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into fixes

The previous two suspend related fixes both fix the same issue
so only one of them (the newer one) is actually needed.

* tag 'v4.1-rockchip-socfixes2' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  Revert "ARM: rockchip: fix undefined instruction of reset_ctrl_regs"
2015-05-13 16:17:33 +02:00
Heiko Stuebner
3f937cf3db Revert "ARM: rockchip: fix undefined instruction of reset_ctrl_regs"
This reverts commit b403125d3b.

As reported by Chris, both commits
        b403125 "ARM: rockchip: fix undefined instruction of reset_ctrl_regs"
        0ea001d "ARM: rockchip: disable dapswjdp during suspend"
actually fix the same issue and b403125 is the older one, which got
superseded by 0ea001d. Therefore revert the obsolete one again.

Reported-by: Chris Zhong <zyw@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2015-05-13 15:47:03 +02:00
Eunbong Song
2480257fb1 tools/liblockdep: Fix compilation error
Recent changes to kernel/locking/lockdep.c broke the liblockdep build. Fix
that.

Signed-off-by: Eunbong Song <eunb.song@samsung.com>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
2015-05-13 06:12:20 -04:00
Eunbong Song
d1e40e5926 tools/liblockdep: Fix linker error in case of cross compile
If we try to cross compile liblockdep, even if we set the CROSS_COMPILE variable
the linker error can occur because LD is not set with CROSS_COMPILE.
This patch adds "LD" can be set automatically with CROSS_COMPILE variable so
fixes linker error problem.

Signed-off-by: Eunbong Song <eunb.song@samsung.com>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
2015-05-13 06:09:09 -04:00
Lucas Stach
9cf82e72ec irqchip: tegra: Set the proper base address in irq chip data
The irq chip functions use the irq chipdata directly as the base register
address of the controller, so this should be passed in instead of a pointer
to the array address holding the base address.

This fixes Tegra20 CPUidle as now the un-/masking of IRQs at the LIC level
works again, but more importantly it fixes the resulting memory corruption.

Fixes: de3ce08049 ' irqchip: tegra: Add DT-based support for legacy interrupt controller'
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Alexandre Courbot <gnurou@gmail.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Link: http://lkml.kernel.org/r/1431202014-3136-1-git-send-email-dev@lynxeye.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-05-13 10:46:07 +02:00
Krzysztof Kozlowski
0b7dc0ff95 ARM: EXYNOS: Fix dereference of ERR_PTR returned by of_genpd_get_from_provider
ERR_PTR was dereferenced during sub domain parsing, if parent domain
could not be obtained (because of invalid phandle or deferred
registration of parent domain).

The Exynos power domain code checked whether
of_genpd_get_from_provider() returned NULL and in that case it skipped
that power domain node. However this function returns ERR_PTR or valid
pointer, not NULL.

Fixes: 0f7807518f ("ARM: EXYNOS: add support for sub-power domains")
Cc: <stable@vger.kernel.org>	[4.0+]
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-05-13 17:45:52 +09:00
Ingo Molnar
a50750d4dc perf/urgent fixes:
- Use getconf to determine number of online CPUs,
   fixing the build on ARM (Will Deacon)
 
 - Fix tools/vm build (Andi Kleen).
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-urgent-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent

Pull perf/urgent fixes from Arnaldo Carvalho de Melo:

  - Use getconf to determine number of online CPUs,
    fixing the build on ARM (Will Deacon)

  - Fix tools/vm build (Andi Kleen).

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-05-13 08:20:18 +02:00
Linus Torvalds
110bc76729 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Handle max TX power properly wrt VIFs and the MAC in iwlwifi, from
    Avri Altman.

 2) Use the correct FW API for scan completions in iwlwifi, from Avraham
    Stern.

 3) FW monitor in iwlwifi accidently uses unmapped memory, fix from Liad
    Kaufman.

 4) rhashtable conversion of mac80211 station table was buggy, the
    virtual interface was not taken into account.  Fix from Johannes
    Berg.

 5) Fix deadlock in rtlwifi by not using a zero timeout for
    usb_control_msg(), from Larry Finger.

 6) Update reordering state before calculating loss detection, from
    Yuchung Cheng.

 7) Fix off by one in bluetooth firmward parsing, from Dan Carpenter.

 8) Fix extended frame handling in xiling_can driver, from Jeppe
    Ledet-Pedersen.

 9) Fix CODEL packet scheduler behavior in the presence of TSO packets,
    from Eric Dumazet.

10) Fix NAPI budget testing in fm10k driver, from Alexander Duyck.

11) macvlan needs to propagate promisc settings down the the lower
    device, from Vlad Yasevich.

12) igb driver can oops when changing number of rings, from Toshiaki
    Makita.

13) Source specific default routes not handled properly in ipv6, from
    Markus Stenberg.

14) Use after free in tc_ctl_tfilter(), from WANG Cong.

15) Use softirq spinlocking in netxen driver, from Tony Camuso.

16) Two ARM bpf JIT fixes from Nicolas Schichan.

17) Handle MSG_DONTWAIT properly in ring based AF_PACKET sends, from
    Mathias Kretschmer.

18) Fix x86 bpf JIT implementation of FROM_{BE16,LE16,LE32}, from Alexei
    Starovoitov.

19) ll_temac driver DMA maps TX packet header with incorrect length, fix
    from Michal Simek.

20) We removed pm_qos bits from netdevice.h, but some indirect
    references remained.  Kill them.  From David Ahern.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (90 commits)
  net: Remove remaining remnants of pm_qos from netdevice.h
  e1000e: Add pm_qos header
  net: phy: micrel: Fix regression in kszphy_probe
  net: ll_temac: Fix DMA map size bug
  x86: bpf_jit: fix FROM_BE16 and FROM_LE16/32 instructions
  netns: return RTM_NEWNSID instead of RTM_GETNSID on a get
  Update be2net maintainers' email addresses
  net_sched: gred: use correct backlog value in WRED mode
  pppoe: drop pppoe device in pppoe_unbind_sock_work
  net: qca_spi: Fix possible race during probe
  net: mdio-gpio: Allow for unspecified bus id
  af_packet / TX_RING not fully non-blocking (w/ MSG_DONTWAIT).
  bnx2x: limit fw delay in kdump to 5s after boot
  ARM: net: delegate filter to kernel interpreter when imm_offset() return value can't fit into 12bits.
  ARM: net fix emit_udiv() for BPF_ALU | BPF_DIV | BPF_K intruction.
  mpls: Change reserved label names to be consistent with netbsd
  usbnet: avoid integer overflow in start_xmit
  netxen_nic: use spin_[un]lock_bh around tx_clean_lock (2)
  net: xgene_enet: Set hardware dependency
  net: amd-xgbe: Add hardware dependency
  ...
2015-05-12 21:10:38 -07:00
David Ahern
01d460dd70 net: Remove remaining remnants of pm_qos from netdevice.h
Commit e2c6544829 removed pm_qos from struct net_device but left the
comment and header file. Remove those.

Signed-off-by: David Ahern <dsahern@gmail.com>
Cc: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-12 23:22:03 -04:00
David Ahern
5684044f80 e1000e: Add pm_qos header
Commit e2c6544829 moved pm_qos_req to e1000_adapter. Add the header file
that defines the struct.

Signed-off-by: David Ahern <dsahern@gmail.com>
Cc: Thomas Graf <tgraf@suug.ch>
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-12 23:22:03 -04:00
Niklas Cassel
bced870152 net: phy: micrel: Fix regression in kszphy_probe
Don't do clock-mode-select if clk == NULL,
since when building without CONFIG_HAVE_CLK,
clk_get returns NULL and clk_get_rate returns 0.

Doing clock-mode-select in this cause causes kszphy_probe to
return -EINVAL and thus prevents the device from being probed.

The original code (before regression) would return 0
when building without CONFIG_HAVE_CLK.

Cc: stable <stable@vger.kernel.org> # 3.18+
Fixes: 1fadee0c36 ("net/phy: micrel: Add clock support for
KSZ8021/KSZ8031")
Reviewed-by: Fabio Estevam <fabio.estevam@freescale.com>
Reviewed-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Niklas Cassel <niklass@axis.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-12 23:18:40 -04:00
Michal Simek
44d4f8d74e net: ll_temac: Fix DMA map size bug
DMA allocates skb->len instead of headlen
which is used for DMA.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-12 23:17:42 -04:00
Alexei Starovoitov
343f845b37 x86: bpf_jit: fix FROM_BE16 and FROM_LE16/32 instructions
FROM_BE16:
'ror %reg, 8' doesn't clear upper bits of the register,
so use additional 'movzwl' insn to zero extend 16 bits into 64

FROM_LE16:
should zero extend lower 16 bits into 64 bit

FROM_LE32:
should zero extend lower 32 bits into 64 bit

Fixes: 89aa075832 ("net: sock: allow eBPF programs to be attached to sockets")
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-12 23:13:08 -04:00
Andy Lutomirski
e9886ace22 selftests, x86: Rework x86 target architecture detection
We currently fail to build on a non-multilib x86_64 target.  We
print a helpful error, but it's nicer to allow the build to succeed.
Fix it and improve cross-compilation support by detecting
architecture support directly and building only the relevant tests.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2015-05-12 20:02:40 -06:00
Andy Lutomirski
c1e6e5cb94 selftests, x86: Remove useless run_tests rule
Now that selftests/x86 uses the kselftest infrastructure, the
run_x86_tests.sh mechanism is just in the way.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2015-05-12 20:02:22 -06:00
Tyler Baker
07620abec8 selftests/x86: install tests
Include lib.mk and set TEST_PROGS where appropriate.

Cc: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Tyler Baker <tyler.baker@linaro.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2015-05-12 20:00:37 -06:00
Tyler Baker
1872d01ab4 selftest/x86: have no dependency on all when cross building
If the CROSS_COMPILE is set remove all's dependency on all_32 and all_64.

Cc: Andy Lutomirski <luto@amacapital.net>
Acked-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Tyler Baker <tyler.baker@linaro.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2015-05-12 20:00:15 -06:00