Commit Graph

495185 Commits

Author SHA1 Message Date
Markus Elfring
57dca36ee2 ALSA: seq: Deletion of unnecessary checks before the function call "snd_midi_event_free"
The snd_midi_event_free() function tests whether its argument is NULL and then
returns immediately. Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-04 15:11:05 +01:00
Daniel Borkmann
b485342bd7 x86, um: actually mark system call tables readonly
Commit a074335a37 ("x86, um: Mark system call tables readonly") was
supposed to mark the sys_call_table in UML as RO by adding the const,
but it doesn't have the desired effect as it's nevertheless being placed
into the data section since __cacheline_aligned enforces sys_call_table
being placed into .data..cacheline_aligned instead. We need to use
the ____cacheline_aligned version instead to fix this issue.

Before:

$ nm -v arch/x86/um/sys_call_table_64.o | grep -1 "sys_call_table"
                 U sys_writev
0000000000000000 D sys_call_table
0000000000000000 D syscall_table_size

After:

$ nm -v arch/x86/um/sys_call_table_64.o | grep -1 "sys_call_table"
                 U sys_writev
0000000000000000 R sys_call_table
0000000000000000 D syscall_table_size

Fixes: a074335a37 ("x86, um: Mark system call tables readonly")
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
2015-01-04 14:21:25 +01:00
Richard Weinberger
f911d73105 um: Skip futex_atomic_cmpxchg_inatomic() test
futex_atomic_cmpxchg_inatomic() does not work on UML because
it triggers a copy_from_user() in kernel context.
On UML copy_from_user() can only be used if the kernel was called
by a real user space process such that UML can use ptrace()
to fetch the value.

Reported-by: Miklos Szeredi <miklos@szeredi.hu>
Suggested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Richard Weinberger <richard@nod.at>
Tested-by: Daniel Walter <d.walter@0x90.at>
2015-01-04 14:20:26 +01:00
Dave Airlie
2f6bd4da08 Merge tag 'amdkfd-fixes-2014-12-30' of git://people.freedesktop.org/~gabbayo/linux into linus
Highlights:

- Link order changes in drm/Makefile and drivers/Makefile to fix issue
  when amdkfd, radeon and amd_iommu_v2 are compiled inside the kernel
  image.

- Consider kernel configuration (using #IFDEFs) when radeon initializes
  amdkfd, due to a specific configuration that makes symbol_request()
  return a non-NULL value when a symbol doesn't exists. Rusty Russel
  is helping me to find the root cause, but it may take a while because
  of year-end so I'm sending this as a band-aid solution.

* tag 'amdkfd-fixes-2014-12-30' of git://people.freedesktop.org/~gabbayo/linux:
  drm/radeon: Init amdkfd only if it was compiled
  amdkfd: actually allocate longs for the pasid bitmask
  drm: Put amdkfd before radeon in drm Makefile
  drivers: Move iommu/ before gpu/ in Makefile
  amdkfd: Remove duplicate include
  amdkfd: Fixing topology bug in building sysfs nodes
  amdkfd: Fix accounting of device queues
2015-01-04 17:44:43 +10:00
Dave Airlie
379a2d31cb Merge tag 'drm-intel-next-fixes-2014-12-30' of git://anongit.freedesktop.org/drm-intel into linus
I've had these since before -rc1, but they missed my last pull
request. Real bug fixes and mostly cc: stable material.

* tag 'drm-intel-next-fixes-2014-12-30' of git://anongit.freedesktop.org/drm-intel:
  drm/i915: add missing rpm ref to i915_gem_pwrite_ioctl
  Revert "drm/i915: Preserve VGACNTR bits from the BIOS"
  drm/i915: Don't call intel_prepare_page_flip() multiple times on gen2-4
  drm/i915: Kill check_power_well() calls
2015-01-04 17:41:00 +10:00
Lars-Peter Clausen
adc2ae0bb6 ALSA: pcm: Remove unused functions declaration
Remove function declarations for functions that don't have a matching
implementation.

For snd_pcm_build_linear_format the implementation was removed in
64d27f96cb ("[ALSA] Support 3-bytes 24bit format in PCM OSS
emulation"). All the others never had one (as far as git history goes).

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-03 20:59:57 +01:00
Namhyung Kim
e7024fc378 perf diff: Fix to sort by baseline field by default
The currently perf diff didn't add the baseline and delta (or other
compute) fields to the sort list so output will be sorted by other
fields like alphabetical order of DSO or symbol as below example.

Fix it by adding hpp formats for the fields and provides default compare
functions.

Before:

  $ perf diff
  # Event 'cycles'
  #
  # Baseline    Delta  Shared Object       Symbol
  # ........  .......  ..................  ...............................
  #
                       [bridge]            [k] ip_sabotage_in
                       [btrfs]             [k] __etree_search.constprop.47
       0.01%           [btrfs]             [k] btrfs_file_mmap
       0.01%   -0.01%  [btrfs]             [k] btrfs_getattr
                       [e1000e]            [k] e1000_watchdog
       0.00%           [kernel.vmlinux]    [k] PageHuge
       0.00%           [kernel.vmlinux]    [k] __acct_update_integrals
       0.00%           [kernel.vmlinux]    [k] __activate_page
                       [kernel.vmlinux]    [k] __alloc_fd
       0.02%   +0.02%  [kernel.vmlinux]    [k] __alloc_pages_nodemask
       ...

After:

  # Baseline    Delta  Shared Object       Symbol
  # ........  .......  ..................  ................................
  #
      24.73%   -4.62%  perf                [.] append_chain_children
       7.96%   -1.29%  perf                [.] dso__find_symbol
       6.97%   -2.07%  libc-2.20.so        [.] vfprintf
       4.61%   +0.88%  libc-2.20.so        [.] __fprintf_chk
       4.41%   +2.43%  perf                [.] sort__comm_cmp
       4.10%   -0.16%  perf                [.] comm__str
       4.03%   -0.93%  perf                [.] machine__findnew_thread_time
       3.82%   +3.09%  perf                [.] __hists__add_entry
       2.95%   -0.18%  perf                [.] sort__dso_cmp
       ...

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1419656793-32756-1-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-01-02 23:27:18 -03:00
Taesoo Kim
b350520880 perf list: Fix --raw-dump option
Currently, 'perf list --raw-dump' requires extra arguments
(e.g., hw) to invoke, which breaks bash/zsh completion
(perf-completion.sh).

  $ perf list --raw-dump
    Error: unknown option `raw-dump'

     usage: perf list [hw|sw|cache|tracepoint|pmu|event_glob]

After,

  $ perf list --raw-dump
  cpu-cycles instructions cache-references cache-misses ...

Signed-off-by: Taesoo Kim <tsgatesv@gmail.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Taesoo kim <taesoo@gatech.edu>
Link: http://lkml.kernel.org/r/1419997015-11071-1-git-send-email-tsgatesv@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-01-02 23:26:58 -03:00
Govindarajulu Varadarajan
9dac6232e2 enic: free all rq buffs when allocation fails
When allocation of all RQs fail, we do not free previously allocated buffers,
before returning error. This causes memory leak.

This patch fixes this by calling vnic_rq_clean(), which frees all the rq
buffers.

Signed-off-by: Govindarajulu Varadarajan <_govind@gmx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-02 16:43:45 -05:00
Kristian Evensen
531ad4282e qmi_wwan: Set random MAC on devices with buggy fw
Some buggy firmwares export an incorrect MAC address (00:a0:c6:00:00:00). This
makes for example checking devices for random MAC addresses tricky, and you
might end up with multiple network interfaces with the same address.

This patch tries to fix, or at least improve, the situation by setting the MAC
address of devices with this firmware bug to a random address. I tested the
patch with two devices that has this firmware bug (Huawei E398 and E392), and
network traffic worked fine after changing the address.

Signed-off-by: Kristian Evensen <kristian.evensen@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-02 16:41:47 -05:00
Linus Torvalds
d753856c9f SCSI fixes on 20150102
This is a set of three fixes: one to correct an abort path thinko causing
 failures (and a panic) in USB on device misbehaviour, One to fix an out of
 order issue in the fnic driver and one to match discard expectations to qemu
 which otherwise cause Linux to behave badly as a guest.
 
 Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "This is a set of three fixes: one to correct an abort path thinko
  causing failures (and a panic) in USB on device misbehaviour, One to
  fix an out of order issue in the fnic driver and one to match discard
  expectations to qemu which otherwise cause Linux to behave badly as a
  guest"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  SCSI: fix regression in scsi_send_eh_cmnd()
  fnic: IOMMU Fault occurs when IO and abort IO is out of order
  sd: tweak discard heuristics to work around QEMU SCSI issue
2015-01-02 13:24:41 -08:00
Ben Pfaff
24cc59d1eb openvswitch: Consistently include VLAN header in flow and port stats.
Until now, when VLAN acceleration was in use, the bytes of the VLAN header
were not included in port or flow byte counters.  They were however
included when VLAN acceleration was not used.  This commit corrects the
inconsistency, by always including the VLAN header in byte counters.

Previous discussion at
http://openvswitch.org/pipermail/dev/2014-December/049521.html

Reported-by: Motonori Shindo <mshindo@vmware.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
Reviewed-by: Flavio Leitner <fbl@sysclose.org>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-02 16:14:20 -05:00
Herbert Xu
843925f33f tcp: Do not apply TSO segment limit to non-TSO packets
Thomas Jarosch reported IPsec TCP stalls when a PMTU event occurs.

In fact the problem was completely unrelated to IPsec.  The bug is
also reproducible if you just disable TSO/GSO.

The problem is that when the MSS goes down, existing queued packet
on the TX queue that have not been transmitted yet all look like
TSO packets and get treated as such.

This then triggers a bug where tcp_mss_split_point tells us to
generate a zero-sized packet on the TX queue.  Once that happens
we're screwed because the zero-sized packet can never be removed
by ACKs.

Fixes: 1485348d24 ("tcp: Apply device TSO segment limit earlier")
Reported-by: Thomas Jarosch <thomas.jarosch@intra2net.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Cheers,
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-02 16:13:20 -05:00
Linus Torvalds
6a4bfa7c3f sound fixes for 3.19-rc3
Nothing too exciting as a new year's start here: most of fixes are for
 ASoC, a boot crash fix on OMAP for deferred probe, a few driver
 specific fixes (Intel, dwc, rockchip, rt5677), in addition to typo
 fixes in kerneldoc comments for PCM.
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Merge tag 'sound-3.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Nothing too exciting as a new year's start here: most of fixes are for
  ASoC, a boot crash fix on OMAP for deferred probe, a few driver
  specific fixes (Intel, dwc, rockchip, rt5677), in addition to typo
  fixes in kerneldoc comments for PCM"

* tag 'sound-3.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: pcm: Fix kerneldoc for params_*() functions
  ASoC: rockchip: i2s: fix maxburst of dma data to 4
  ASoC: rockchip: i2s: fix error defination of transmit data level
  ASoC: Intel: correct the fixed free block allocation
  ASoC: rt5677: fixed rt5677_dsp_vad_put rt5677_dsp_vad_get panic
  ASoC: Intel: Fix BYTCR machine driver MODULE_ALIAS
  ASoC: Intel: Fix BYTCR firmware name
  ASoC: dwc: Iterate over all channels
  ASoC: dwc: Ensure FIFOs are flushed to prevent channel swap
  ASoC: Intel: Add I2C dependency to two new machines
  ASoC: dapm: Remove snd_soc_of_parse_audio_routing() due to deferred probe
2015-01-02 12:57:20 -08:00
Kostya Belezko
c484994eb3 Altera TSE: Add missing phydev
Altera network device doesn't come up after

ifconfig eth0 down
ifconfig eth0 up

The reason behind is clearing priv->phydev during tse_shutdown().
The phydev is not restored back at tse_open().

Resubmiting as to follow Tobias Klauser suggestion.
phy_start/phy_stop are called on each ifup/ifdown and
phy_disconnect is called once during the module removal.

Signed-off-by: Kostya Belezko <bkostya@hotmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-02 15:45:10 -05:00
David S. Miller
2b972acbe5 Merge branch 'mlx4-net'
Or Gerlitz says:

====================
mlx4 driver fixes for 3.19-rc2

Please push Maor's patch to -stable >= 3.17

Jack's fixes error-flow issues introduced in 3.19-rc1, no need for -stable.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-02 15:41:33 -05:00
Jack Morgenstein
d0d012509f net/mlx4_core: Fix error flow in mlx4_init_hca()
We shouldn't call UNMAP_FA here, this is done in mlx4_load_one.

If mlx4_query_func fails, we need to invoke CLOSE_HCA for both
native and master.

Fixes: a0eacca948 ('net/mlx4_core: Refactor mlx4_load_one')
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-02 15:41:29 -05:00
Maor Gottlieb
a51e0df4c1 net/mlx4_core: Correcly update the mtt's offset in the MR re-reg flow
Previously, mlx4_mt_rereg_write filled the MPT's entity_size with the
old MTT's page shift, which could result in using an incorrect offset.
Fix the initialization to be after we calculate the new MTT offset.

In addition, assign mtt order to -1 after calling mlx4_mtt_cleanup. This
is necessary in order to mark the MTT as invalid and avoid freeing it later.

Fixes: e630664 ('mlx4_core: Add helper functions to support MR re-registration')
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-02 15:41:28 -05:00
Jakub Wilk
363307e6e5 ext4: remove spurious KERN_INFO from ext4_warning call
Signed-off-by: Jakub Wilk <jwilk@jwilk.net>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-01-02 15:31:14 -05:00
Theodore Ts'o
ad7fefb109 Revert "ext4: fix suboptimal seek_{data,hole} extents traversial"
This reverts commit 14516bb7bb.

This was causing regression test failures with generic/285 with an ext3
filesystem using CONFIG_EXT4_USE_FOR_EXT23.

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-01-02 15:16:00 -05:00
Linus Torvalds
d7e19bd882 vhost: virtio 1.0 bugfix
There's a single change here, fixing a vhost bug where vhost initialization
 fails due to used ring alignment check being too strict.
 
 Cc: Rusty Russell <rusty@rustcorp.com.au>
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

Pull vhost cleanup and virtio bugfix
 "There's a single change here, fixing a vhost bug where vhost
  initialization fails due to used ring alignment check being too
  strict"

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
  vhost: relax used address alignment
  virtio_ring: document alignment requirements
2015-01-02 12:07:50 -08:00
Chris Mason
6f8960541b Btrfs: don't delay inode ref updates during log replay
Commit 1d52c78afb (Btrfs: try not to ENOSPC on log replay) added a
check to skip delayed inode updates during log replay because it
confuses the enospc code.  But the delayed processing will end up
ignoring delayed refs from log replay because the inode itself wasn't
put through the delayed code.

This can end up triggering a warning at commit time:

WARNING: CPU: 2 PID: 778 at fs/btrfs/delayed-inode.c:1410 btrfs_assert_delayed_root_empty+0x32/0x34()

Which is repeated for each commit because we never process the delayed
inode ref update.

The fix used here is to change btrfs_delayed_delete_inode_ref to return
an error if we're currently in log replay.  The caller will do the ref
deletion immediately and everything will work properly.

Signed-off-by: Chris Mason <clm@fb.com>
cc: stable@vger.kernel.org # v3.18 and any stable series that picked 1d52c78afb
2015-01-02 14:47:56 -05:00
Filipe Manana
a1317f455a Btrfs: correctly get tree level in tree_backref_for_extent
If we are using skinny metadata, the block's tree level is in the offset
of the key and not in a btrfs_tree_block_info structure following the
extent item (it doesn't exist). Therefore fix it.

Besides returning the correct level in the tree, this also prevents reading
past the leaf's end in the case where the extent item is the last item in
the leaf (eb) and it has only 1 inline reference - this is because
sizeof(struct btrfs_tree_block_info) is greater than
sizeof(struct btrfs_extent_inline_ref).

Got it while running a scrub which produced the following warning:

    BTRFS: checksum error at logical 42123264 on dev /dev/sde, sector 15840: metadata node (level 24) in tree 5

Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>
2015-01-02 14:47:56 -05:00
Wang Shilong
c7cfb8a540 Btrfs: call inode_dec_link_count() on mkdir error path
In btrfs_mkdir(), if it fails to create dir, we should
clean up existed items, setting inode's link properly
to make sure it could be cleaned up properly.

Signed-off-by: Wang Shilong <wangshilong1991@gmail.com>
Signed-off-by: Chris Mason <clm@fb.com>
2015-01-02 14:47:55 -05:00
Josef Bacik
df95e7f0d9 Btrfs: abort transaction if we don't find the block group
We shouldn't BUG_ON() if there is corruption.  I hit this while testing my block
group patch and the abort worked properly.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
2015-01-02 14:47:55 -05:00
Dan Carpenter
6b6d24b389 Btrfs, scrub: uninitialized variable in scrub_extent_for_parity()
The only way that "ret" is set is when we call scrub_pages_for_parity()
so the skip to "if (ret) " test doesn't make sense and causes a static
checker warning.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Chris Mason <clm@fb.com>
2015-01-02 14:47:55 -05:00
Chris Mason
4e0c4a47d7 Btrfs: add more maintainers
I'm lucky to have a huge amount of help on Btrfs, and want to thank
everyone that sends patches, does review and helps track down bugs.

Dave Sterba is a long time reviewer and contributor, and adding him
to the maintainers file reflects the excellent work he has been
doing for years.

Signed-off-by: Chris Mason <clm@fb.com>
2015-01-02 14:47:20 -05:00
Namhyung Kim
4093325f82 perf probe: Fix crash in dwarf_getcfi_elf
David reported that perf can segfault when adding an uprobe event like
this:

  $ perf probe -x /lib64/libc-2.14.90.so -a 'malloc  size=%di'

  (gdb) bt
  #0  parse_eh_frame_hdr (hdr=0x0, hdr_size=2596, hdr_vaddr=71788,
      ehdr=0x7fffffffd390, eh_frame_vaddr=
      0x7fffffffd378, table_entries=0x8808d8, table_encoding=0x8808e0 "") at
      dwarf_getcfi_elf.c:79
  #1  0x000000385f81615a in getcfi_scn_eh_frame (hdr_vaddr=71788,
      hdr_scn=0x8839b0, shdr=0x7fffffffd2f0, scn=<optimized out>,
      ehdr=0x7fffffffd390, elf=0x882b30) at dwarf_getcfi_elf.c:231
  #2  getcfi_shdr (ehdr=0x7fffffffd390, elf=0x882b30) at dwarf_getcfi_elf.c:283
  #3  dwarf_getcfi_elf (elf=0x882b30) at dwarf_getcfi_elf.c:309
  #4  0x00000000004d5bac in debuginfo__find_probes (pf=0x7fffffffd4f0,
      dbg=Unhandled dwarf expression opcode 0xfa) at util/probe-finder.c:993
  #5  0x00000000004d634a in debuginfo__find_trace_events (dbg=0x880840,
      pev=<optimized out>, tevs=0x880f88, max_tevs=<optimized out>) at
      util/probe-finder.c:1200
  #6  0x00000000004aed6b in try_to_find_probe_trace_events (target=0x881b20
      "/lib64/libpthread-2.14.90.so",
      max_tevs=128, tevs=0x880f88, pev=0x859b30) at util/probe-event.c:482
  #7  convert_to_probe_trace_events (target=0x881b20
      "/lib64/libpthread-2.14.90.so", max_tevs=128, tevs=0x880f88,
      pev=0x859b30) at util/probe-event.c:2356
  #8  add_perf_probe_events (pevs=<optimized out>, npevs=1, max_tevs=128,
      target=0x881b20 "/lib64/libpthread-2.14.90.so", force_add=false) at
      util/probe-event.c:2391
  #9  0x000000000044014f in __cmd_probe (argc=<optimized out>,
      argv=0x7fffffffe2f0, prefix=Unhandled dwarf expression opcode 0xfa) at
      at builtin-probe.c:488
  #10 0x0000000000440313 in cmd_probe (argc=5, argv=0x7fffffffe2f0,
      prefix=<optimized out>) at builtin-probe.c:506
  #11 0x000000000041d133 in run_builtin (p=0x805680, argc=5,
      argv=0x7fffffffe2f0) at perf.c:341
  #12 0x000000000041c8b2 in handle_internal_command (argv=<optimized out>,
      argc=<optimized out>) at perf.c:400
  #13 run_argv (argv=<optimized out>, argcp=<optimized out>) at perf.c:444
  #14 main (argc=5, argv=0x7fffffffe2f0) at perf.c:559

And I found a related commit (5704c8c4fa71 "getcfi_scn_eh_frame: Don't
crash and burn when .eh_frame bits aren't there.") in elfutils that can
lead to a unexpected crash like this.  To safely use the function, it
needs to check the .eh_frame section is a PROGBITS type.

Reported-by: David Ahern <dsahern@gmail.com>
Tested-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Mark Wielaard <mjw@redhat.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Link: http://lkml.kernel.org/r/20141230090533.GH6081@sejong
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-01-02 12:44:01 -03:00
Masami Hiramatsu
906451b98b perf probe: Fix to fall back to find probe point in symbols
Fix to fall back to find a probe point in symbols if perf fails to find
it in debuginfo.

This can happen when the target function is an alias of another
function. Such alias doesn't have an entry in debuginfo but in symbols.

David Ahern reported this problem in https://lkml.org/lkml/2014/12/29/355

I ensured the problem and deeper investigation discovers it.
 -----
 eu-readelf --debug-dump=info /usr/lib/debug/lib/x86_64-linux-gnu/libc-2.19.so | grep \"malloc\" -A6
             name                 (strp) "malloc"
             decl_file            (data1) 25
             decl_line            (data2) 466
             prototyped           (flag_present)
             type                 (ref4) [  81b5]
             declaration          (flag_present)
 [  8f58]      formal_parameter
 --
             name                 (strp) "malloc"
             decl_file            (data1) 23
             decl_line            (data2) 466
             prototyped           (flag_present)
             type                 (ref4) [  9f4a]
             declaration          (flag_present)
             sibling              (ref4) [  bb29]
 ...
 -----
All these entires have no instances (all of them are declarations)
This is why the perf probe failed to find it in debuginfo.

However, there are some malloc instances in symbols.
 -----
 eu-readelf --symbols /usr/lib/debug/lib/x86_64-linux-gnu/libc-2.19.so | grep malloc$
  1181: 0000000000080700   5332 FUNC    LOCAL  DEFAULT       12 _int_malloc
  4537: 00000000000831d0    339 FUNC    LOCAL  DEFAULT       12 __GI___libc_malloc
  5545: 00000000000831d0    339 FUNC    LOCAL  DEFAULT       12 __malloc
  6063: 00000000000831d0    339 FUNC    GLOBAL DEFAULT       12 malloc
  7302: 00000000000831d0    339 FUNC    GLOBAL DEFAULT       12 __libc_malloc
 -----
As you an see, malloc and __libc_malloc have same address, and actually
__libc_malloc has an entry in debuginfo. So you can set up a probe on
__libc_malloc.

To fix this problem shortly, perf probe simply falls back to find probe
point(malloc) in symbols if it is not found in debuginfo.

Reported-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: yrl.pp-manager.tt@hitachi.com
Link: http://lkml.kernel.org/r/20141231062747.2087.80961.stgit@localhost.localdomain
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-01-02 12:42:17 -03:00
Lars-Peter Clausen
a14e7eb59b ALSA: ps3: Remove unnecessary snd_pcm_lib_preallocate_free_for_all()
The ALSA core takes care that all preallocated memory is freed when the card
(and the PCM) itself is freed. There is no need to do this manually in the
driver.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-02 16:34:57 +01:00
Lars-Peter Clausen
ef394acb45 ALSA: oxygen: Remove unnecessary snd_pcm_lib_preallocate_free_for_all()
The ALSA core takes care that all preallocated memory is freed when the PCM
itself is freed. There is no need to do this manually in the driver.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-02 16:34:47 +01:00
Lars-Peter Clausen
38c4718121 ALSA: ymfpci: Remove always NULL parameters
The various PCM allocation functions in this driver take a pointer to a
pointer of a PCM where if this parameter is provided the newly allocated PCM
is stored. All callers pass NULL though, so remove the parameter. This makes
the code a bit shorter and cleaner.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-02 16:34:25 +01:00
Lars-Peter Clausen
1b16416fda ALSA: trident: Remove always NULL parameters
The various PCM allocation functions in this driver take a pointer to a
pointer of a PCM where if this parameter is provided the newly allocated PCM
is stored. All callers pass NULL though, so remove the parameter.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-02 16:34:06 +01:00
Lars-Peter Clausen
0f33991dd2 ALSA: sonicvibes: Remove always NULL parameter
snd_sonicvibes_pcm() take a pointer to a pointer of a PCM where if this
parameter is provided the newly allocated PCM is stored. All callers pass
NULL though, so remove the parameter. This makes the code a bit cleaner and
shorter.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-02 16:33:52 +01:00
Lars-Peter Clausen
15aded4c92 ALSA: riptide: Remove always NULL parameter
snd_riptide_pcm() takes a pointer to a pointer of a PCM where if this
parameter is provided the newly allocated PCM is stored. All callers pass
NULL though, so remove the parameter. This makes the code a bit cleaner and
shorter.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-02 16:33:36 +01:00
Lars-Peter Clausen
08a4c10b58 ALSA: ice1712: Remove always NULL parameters
The various PCM allocation functions in this driver take a pointer to a
pointer of a PCM where if this parameter is provided the newly allocated PCM
is stored. All callers pass NULL though, so remove the parameter. This makes
the code a bit cleaner and shorter.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-02 16:33:20 +01:00
Lars-Peter Clausen
483337f903 ALSA: fm801: Remove always NULL parameter
snd_fm801_pcm() takes a pointer to a pointer of a PCM where if this
parameter is provided the newly allocated PCM is stored. All callers pass
NULL though, so remove the parameter. This makes the code a bit cleaner and
shorter.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-02 16:33:03 +01:00
Lars-Peter Clausen
bb814c396a ALSA: emu10k1: Remove always NULL parameters
The various PCM and hwdep allocation functions in this driver take a pointer
to a pointer of a PCM/hwdep where if this parameter is provided the newly
allocated object is stored. All callers pass NULL though, so remove the
parameter.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-02 16:32:45 +01:00
Lars-Peter Clausen
50b8d94e18 ALSA: ens1370: Remove always NULL parameters
The various PCM and MIDI allocation functions in this driver take a pointer
to a pointer of a PCM/MIDI object where if this parameter is provided the
newly allocated object is stored. All callers pass NULL though, so remove
the parameter. This makes the code a bit shorter and cleaner.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-02 16:32:28 +01:00
Lars-Peter Clausen
72134c4d9e ALSA: cs46xx: Remove always NULL parameters
The various PCM and MIDI allocation functions in this driver take a pointer
to a pointer of a PCM/MIDI object where if this parameter is provided the
newly allocated object is stored. All callers pass NULL though, so remove
the parameter. This makes the code a bit shorter and cleaner.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-02 16:32:03 +01:00
Lars-Peter Clausen
3e4f4776f4 ALSA: cs4281: Remove always NULL parameters
snd_cs4281_pcm() and snd_cs4281_midi() take a pointer to a pointer of a
PCM/MIDI object where if this parameter is provided the newly allocated
object is stored. All callers pass NULL though, so remove the parameter.
This makes the code a bit shorter and cleaner.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-02 16:31:46 +01:00
Lars-Peter Clausen
d18132aa15 ALSA: asihpi: Remove always NULL parameter
snd_asihpi_hpi_new() takes a pointer to a pointer of a hwdep where if this
parameter is provided the newly allocated hwdep is stored. All callers pass
NULL though, so remove the parameter. This makes the code a bit cleaner and
shorter.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-02 16:31:23 +01:00
Lars-Peter Clausen
a08800940f ASLA: ad1889: Remove always NULL parameter
snd_ad1889_pcm_init() takes a pointer to a pointer of a PCM where if this
parameter is provided the newly allocated PCM is stored. All callers pass
NULL though, so remove the parameter. This makes the code a bit cleaner and
shorter.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-02 16:31:04 +01:00
Lars-Peter Clausen
fa60c06569 ALSA: wss: Remove (almost) always NULL parameters
Most callers of snd_wss_pcm(), snd_wss_timer() and snd_cs4236_pcm() pass
NULL as the last parameter, some callers pass a pointer but never use it
after the function has been called and only a few callers pass a pointer and
actually use it. The later is only the case for snd_wss_pcm() for
snd_cs4236_pcm() and it is possible to get the same PCM object by accessing
the pcm field of the snd_wss struct that was passed as the first parameter.

This function removes the last parameters from the functions mentioned above
and updates the callers which used it to use chip->pcm instead. This allows
us to slightly simplify the functions since they don't have to check and set
the last parameter anymore which makes the code slightly shorter and
cleaner.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-02 16:30:08 +01:00
Lars-Peter Clausen
92533f1888 ASoC: sb16: Simplify snd_sb16dsp_pcm()
All callers of snd_sb16dsp_pcm() always pass the pcm field of the first
parameter as the last parameter. Simplify the function by moving this inside
the function itself. This makes the code a bit shorter and cleaner.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-02 16:28:35 +01:00
Lars-Peter Clausen
8c77629996 ALSA: sb8: Remove always NULL parameters
snd_sb8dsp_pcm() and snd_sb8dsp_midi() take a pointer to a pointer of a
PCM/MIDI where if this parameter is provided the newly allocated object is
stored. All callers pass NULL though, so remove the parameter. This makes
the code a bit cleaner and shorter.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-02 16:28:21 +01:00
Lars-Peter Clausen
f6be4e624a ALSA: msnd: Remove always NULL parameter
snd_msnd_pcm() takes a pointer to a pointer of a PCM where if this parameter
is provided the newly allocated PCM is stored. All callers pass NULL though,
so remove the parameter. This makes the code a bit cleaner and shorter.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-02 16:28:04 +01:00
Lars-Peter Clausen
db5abb3c49 ALSA: gus: Remove always NULL parameters
snd_gf1_pcm_new() and snd_gf1_rawmidi_new() take a pointer to a pointer of a
PCM/MIDI where if this parameter is provided the newly allocated object is
stored. All callers pass NULL though, so remove the parameter. This makes
the code a bit cleaner and shorter.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-02 16:27:42 +01:00
Lars-Peter Clausen
1a2515ac94 ALSA: es18xx: Remove always NULL parameter
snd_es18xx_pcm() takes a pointer to a pointer of a PCM where if this
parameter is provided the newly allocated PCM is stored. All callers pass
NULL though, so remove the parameter. This makes the code a bit cleaner and
shorter.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-02 16:27:24 +01:00
Lars-Peter Clausen
4b8ab88518 ALSA: es1688: Remove almost always NULL parameter
snd_es1688_pcm() takes a pointer to a pointer of a PCM where if this
parameter is provided the newly allocated PCM is stored. This PCM is also
available from the pcm field of the snd_es1688 struct that got passed to the
same function. This patch updates all callers which passed a pointer to use
that field instead and then removes the parameter from the function. This
makes the code a bit shorter and cleaner.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-02 16:27:03 +01:00