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  1. 11 Nov, 2011 3 commits
    • John W. Linville's avatar
      Merge branch 'master' of... · fb14ca43
      John W. Linville authored 
      Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem
      fb14ca43
    • Amitkumar Karwar's avatar
      mwifiex: fix association issue with AP configured in hidden SSID mode · fada1058
      Amitkumar Karwar authored 
      Firmware expects 'max_ssid_length' field in
'struct mwifiex_ie_types_wildcard_ssid_params' to be '0' for
performing SSID specific scan. Currently driver updates it with
an actual SSID length. Hence UUT is not able to find the AP
configured in hidden SSID mode in scan results and association
fails.

max_ssid_length is filled with '0' to fix the issue.
Signed-off-by: default avatarAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: default avatarBing Zhao <bzhao@marvell.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
      fada1058
    • Emmanuel Grumbach's avatar
      iwlwifi: avoid a panic when unloading the module with RF Kill · 43e58856
      Emmanuel Grumbach authored 
      When HW RF kill switch is set to kill the radio, our NIC issues an
interrupt after we stop the APM module. When we unload the module,
the driver disables and cleans the interrupts before stopping the
APM. So we have a real interrupt (inta not zero) pending.
When this interrupts pops up the tasklet has already been killed
and we crash.

Here is a logical description of the flow:

disable and clean interrupts
synchronize interrupts
kill the tasklet

stop the APM <<== creates an RF kill interrupt

free_irq <<== somehow our ISR is called here and we crash

Here is the panic message:

[  201.313636] BUG: unable to handle kernel paging request at ffff8800911b7150
[  201.314541] IP: [<ffffffff8106d652>] tasklet_action+0x62/0x130
[  201.315149] PGD 1c06063 PUD db37f067 PMD db408067 PTE 80000000911b7160
[  201.316456] Oops: 0000 [#1] SMP DEBUG_PAGEALLOC
[  201.317324] CPU 1
[  201.317495] Modules linked in: arc4 iwlwifi(-) mac80211 cfg80211 netconsole configfs binfmt_misc i915 drm_kms_helper drm uvcvideo i2c_algo_bit videodev dell_laptop dcdbas intel_agp dell_wmi intel_ips psmouse intel_gtt v4l2_compat_ioctl32 asix usbnet mii serio_raw video sparse_keymap firewire_ohci sdhci_pci sdhci firewire_core e1000e crc_itu_t [last unloaded: configfs]
[  201.323839]
[  201.324015] Pid: 2061, comm: modprobe Not tainted 3.1.0-rc9-wl #4 Dell Inc. Latitude E6410/0667CC
[  201.324736] RIP: 0010:[<ffffffff8106d652>]  [<ffffffff8106d652>] tasklet_action+0x62/0x130
[  201.325128] RSP: 0018:ffff88011bc43ea0  EFLAGS: 00010286
[  201.325338] RAX: ffff88008ae70000 RBX: ffff8800911b7150 RCX: ffff88008ae70028
[  201.325555] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88008ae70000
[  201.325775] RBP: ffff88011bc43ec0 R08: 0000000000000000 R09: 0000000000000000
[  201.325994] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000001
[  201.326212] R13: 0000000000000006 R14: 0000000000000100 R15: ffff88008e259fd8
[  201.326431] FS:  00007f4b90ea9700(0000) GS:ffff88011bc40000(0000) knlGS:0000000000000000
[  201.326657] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[  201.326864] CR2: ffff8800911b7150 CR3: 000000008fd6d000 CR4: 00000000000006e0
[  201.327083] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  201.327302] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[  201.327521] Process modprobe (pid: 2061, threadinfo ffff88008e258000, task ffff88008ae70000)
[  201.327747] Stack:
[  201.330494]  0000000000000046 0000000000000030 0000000000000001 0000000000000006
[  201.333870]  ffff88011bc43f30 ffffffff8106cd8a ffffffff811e1016 ffff88011bc43f08
[  201.337186]  0000000100000046 ffff88008e259fd8 0000000a10be2160 0000000000000006
[  201.340458] Call Trace:
[  201.342994]  <IRQ>
[  201.345656]  [<ffffffff8106cd8a>] __do_softirq+0xca/0x250
[  201.348185]  [<ffffffff811e1016>] ? pde_put+0x76/0x90
[  201.350730]  [<ffffffff8131aeae>] ? do_raw_spin_unlock+0x5e/0xb0
[  201.353261]  [<ffffffff811e1016>] ? pde_put+0x76/0x90
[  201.355776]  [<ffffffff8163ccfc>] call_softirq+0x1c/0x30
[  201.358287]  [<ffffffff8101531d>] do_softirq+0x9d/0xd0
[  201.360823]  [<ffffffff8106cb05>] irq_exit+0xd5/0xf0
[  201.363330]  [<ffffffff8163d5d6>] do_IRQ+0x66/0xe0
[  201.365819]  [<ffffffff81632673>] common_interrupt+0x73/0x73
[  201.368257]  <EOI>

Cc: <stable@kernel.org> 3.1+
Signed-off-by: default avatarEmmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: default avatarWey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
      43e58856
  3. 10 Nov, 2011 1 commit
  5. 09 Nov, 2011 13 commits
    • David S. Miller's avatar
      Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless · 3b971a7c
      David S. Miller authored
      3b971a7c
    • Li Wei's avatar
      ipv4: fix for ip_options_rcv_srr() daddr update. · b12f62ef
      Li Wei authored 
      When opt->srr_is_hit is set skb_rtable(skb) has been updated for
'nexthop' and iph->daddr should always equals to skb_rtable->rt_dst
holds, We need update iph->daddr either.
Signed-off-by: default avatarLi Wei <lw@cn.fujitsu.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      b12f62ef
    • Nick Bowler's avatar
      ah: Read nexthdr value before overwriting it in ahash input callback. · b7ea81a5
      Nick Bowler authored 
      The AH4/6 ahash input callbacks read out the nexthdr field from the AH
header *after* they overwrite that header.  This is obviously not going
to end well.  Fix it up.
Signed-off-by: default avatarNick Bowler <nbowler@elliptictech.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      b7ea81a5
    • Nick Bowler's avatar
      ah: Correctly pass error codes in ahash output callback. · 069294e8
      Nick Bowler authored 
      The AH4/6 ahash output callbacks pass nexthdr to xfrm_output_resume
instead of the error code.  This appears to be a copy+paste error from
the input case, where nexthdr is expected.  This causes the driver to
continuously add AH headers to the datagram until either an allocation
fails and the packet is dropped or the ahash driver hits a synchronous
fallback and the resulting monstrosity is transmitted.

Correct this issue by simply passing the error code unadulterated.
Signed-off-by: default avatarNick Bowler <nbowler@elliptictech.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      069294e8
    • Paul Bolle's avatar
      net: drivers/net/hippi/Kconfig should be sourced · fecc7351
      Paul Bolle authored 
      Commit ff5a3b50 ("hippi: Move the HIPPI driver") moved the HIPPI
driver into drivers/net/hippi. It didn't source
drivers/net/hippi/Kconfig though, so it didn't make all necessary
Kconfig changes. So let drivers/net/kconfig source HIPPI's Kconfig file.

[ Fix syntax error at the end of HIPP's Kconfig file. -DaveM ]
Signed-off-by: default avatarPaul Bolle <pebolle@tiscali.nl>
Acked-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      fecc7351
    • Ricardo Ribalda's avatar
      net/ll_temac: FIX : Wait for indirect wait to end · f79d7e6f
      Ricardo Ribalda authored 
      While tracing down a connectivity problem on the temac I connected a
probe to the Cross bar irq, and it was triggered when doing
ifdown->ifup.

This is fixed once waiting for the indirect write to end. Since it is
not on the hot path there is no performance loss.
Signed-off-by: default avatarRicardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      f79d7e6f
    • Ricardo Ribalda's avatar
      net/temac: FIX segfault when process old irqs · 50ec1538
      Ricardo Ribalda authored 
      Do not enable the irq until the scatter gather registers are ready to
handle the data. Otherwise an irq from a packet send/received before
last close can lead to an access to an invalid memory region on the irq
handler.

Also, stop the dma engine on close.
Signed-off-by: default avatarRicardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      50ec1538
    • Johannes Berg's avatar
      mac80211: fix race between connection monitor & suspend · 0ecfe806
      Johannes Berg authored 
      When the connection monitor timer fires right before
suspend, the following will happen:
 timer fires -> monitor_work gets queued
 suspend calls ieee80211_sta_quiesce
 ieee80211_sta_quiesce:
  - deletes timer
  - cancels monitor_work synchronously, running it
  [note wrong order of these steps]
 monitor_work runs, re-arming the timer
 later, timer fires while system should be quiesced

This causes a warning:

WARNING: at net/mac80211/util.c:540 ieee80211_can_queue_work+0x35/0x40 [mac80211]()

but is otherwise harmless. I'm not completely sure
this is the scenario Thomas stumbled across, but it
is the only way I can right now see the warning in
a scenario like the one he reported.
Reported-by: default avatarThomas Meyer <thomas@m3y3r.de>
Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
      0ecfe806
    • Steven Miao's avatar
      wireless: libertas: fix unaligned le64 accesses · d929bbc6
      Steven Miao authored 
      use get_unaligned_le64() to get timestamp
Signed-off-by: default avatarSteven Miao <realmz6@gmail.com>
Acked-by: default avatarDan Williams <dcbw@redhat.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
      d929bbc6
    • Luis R. Rodriguez's avatar
      cfg80211: fix bug on regulatory core exit on access to last_request · 58ebacc6
      Luis R. Rodriguez authored 
      Commit 4d9d88d1 by Scott James Remnant <keybuk@google.com> added
the .uevent() callback for the regulatory device used during
the platform device registration. The change was done to account
for queuing up udev change requests through udevadm triggers.
The change also meant that upon regulatory core exit we will now
send a uevent() but the uevent() callback, reg_device_uevent(),
also accessed last_request. Right before commiting device suicide
we free'd last_request but never set it to NULL so
platform_device_unregister() would lead to bogus kernel paging
request. Fix this and also simply supress uevents right before
we commit suicide as they are pointless.

This fix is required for kernels >= v2.6.39

$ git describe --contains 4d9d88d1
v2.6.39-rc1~468^2~25^2^2~21

The impact of not having this present is that a bogus paging
access may occur (only read) upon cfg80211 unload time. You
may also get this BUG complaint below. Although Johannes
could not reproduce the issue this fix is theoretically correct.

mac80211_hwsim: unregister radios
mac80211_hwsim: closing netlink
BUG: unable to handle kernel paging request at ffff88001a06b5ab
IP: [<ffffffffa030df9a>] reg_device_uevent+0x1a/0x50 [cfg80211]
PGD 1836063 PUD 183a063 PMD 1ffcb067 PTE 1a06b160
Oops: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC
CPU 0
Modules linked in: cfg80211(-) [last unloaded: mac80211]

Pid: 2279, comm: rmmod Tainted: G        W   3.1.0-wl+ #663 Bochs Bochs
RIP: 0010:[<ffffffffa030df9a>]  [<ffffffffa030df9a>] reg_device_uevent+0x1a/0x50 [cfg80211]
RSP: 0000:ffff88001c5f9d58  EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff88001d2eda88 RCX: ffff88001c7468fc
RDX: ffff88001a06b5a0 RSI: ffff88001c7467b0 RDI: ffff88001c7467b0
RBP: ffff88001c5f9d58 R08: 000000000000ffff R09: 000000000000ffff
R10: 0000000000000000 R11: 0000000000000001 R12: ffff88001c7467b0
R13: ffff88001d2eda78 R14: ffffffff8164a840 R15: 0000000000000001
FS:  00007f8a91d8a6e0(0000) GS:ffff88001fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: ffff88001a06b5ab CR3: 000000001c62e000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process rmmod (pid: 2279, threadinfo ffff88001c5f8000, task ffff88000023c780)
Stack:
 ffff88001c5f9d98 ffffffff812ff7e5 ffffffff8176ab3d ffff88001c7468c2
 000000000000ffff ffff88001d2eda88 ffff88001c7467b0 ffff880000114820
 ffff88001c5f9e38 ffffffff81241dc7 ffff88001c5f9db8 ffffffff81040189
Call Trace:
 [<ffffffff812ff7e5>] dev_uevent+0xc5/0x170
 [<ffffffff81241dc7>] kobject_uevent_env+0x1f7/0x490
 [<ffffffff81040189>] ? sub_preempt_count+0x29/0x60
 [<ffffffff814cab1a>] ? _raw_spin_unlock_irqrestore+0x4a/0x90
 [<ffffffff81305307>] ? devres_release_all+0x27/0x60
 [<ffffffff8124206b>] kobject_uevent+0xb/0x10
 [<ffffffff812fee27>] device_del+0x157/0x1b0
 [<ffffffff8130377d>] platform_device_del+0x1d/0x90
 [<ffffffff81303b76>] platform_device_unregister+0x16/0x30
 [<ffffffffa030fffd>] regulatory_exit+0x5d/0x180 [cfg80211]
 [<ffffffffa032bec3>] cfg80211_exit+0x2b/0x45 [cfg80211]
 [<ffffffff8109a84c>] sys_delete_module+0x16c/0x220
 [<ffffffff8108a23e>] ? trace_hardirqs_on_caller+0x7e/0x120
 [<ffffffff814cba02>] system_call_fastpath+0x16/0x1b
Code: <all your base are belong to me>
RIP  [<ffffffffa030df9a>] reg_device_uevent+0x1a/0x50 [cfg80211]
 RSP <ffff88001c5f9d58>
CR2: ffff88001a06b5ab
---[ end trace 147c5099a411e8c0 ]---
Reported-by: default avatarJohannes Berg <johannes@sipsolutions.net>
Cc: Scott James Remnant <keybuk@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: default avatarLuis R. Rodriguez <mcgrof@qca.qualcomm.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
      58ebacc6
    • Johannes Berg's avatar
      mac80211: fix bug in ieee80211_build_probe_req · 5b2bbf75
      Johannes Berg authored 
      ieee80211_probereq_get() can return NULL in
which case we should clean up & return NULL
in ieee80211_build_probe_req() as well.

Cc: stable@vger.kernel.org
Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
      5b2bbf75
    • Johannes Berg's avatar
      mac80211: fix NULL dereference in radiotap code · f8d1ccf1
      Johannes Berg authored 
      When receiving failed PLCP frames is enabled, there
won't be a rate pointer when we add the radiotap
header and thus the kernel will crash. Fix this by
not assuming the rate pointer is always valid. It's
still always valid for frames that have good PLCP
though, and that is checked & enforced.

This was broken by my
commit fc885189
Author: Johannes Berg <johannes.berg@intel.com>
Date:   Fri Jul 30 13:23:12 2010 +0200

    mac80211: don't check rates on PLCP error frames

where I removed the check in this case but didn't
take into account that the rate info would be used.
Reported-by: default avatarXiaokang Qin <xiaokang.qin@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
      f8d1ccf1
    • John W. Linville's avatar
      Merge branch 'master' of... · e29ec624
      John W. Linville authored 
      Merge branch 'master' of ssh://ra.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem
      e29ec624
  7. 08 Nov, 2011 15 commits
  9. 07 Nov, 2011 8 commits
    • Al Viro's avatar
      VFS: we need to set LOOKUP_JUMPED on mountpoint crossing · a3fbbde7
      Al Viro authored 
      Mountpoint crossing is similar to following procfs symlinks - we do
not get ->d_revalidate() called for dentry we have arrived at, with
unpleasant consequences for NFS4.

Simple way to reproduce the problem in mainline:

    cat >/tmp/a.c <<'EOF'
    #include <unistd.h>
    #include <fcntl.h>
    #include <stdio.h>
    main()
    {
            struct flock fl = {.l_type = F_RDLCK, .l_whence = SEEK_SET, .l_len = 1};
            if (fcntl(0, F_SETLK, &fl))
                    perror("setlk");
    }
    EOF
    cc /tmp/a.c -o /tmp/test

then on nfs4:

    mount --bind file1 file2
    /tmp/test < file1		# ok
    /tmp/test < file2		# spews "setlk: No locks available"...

What happens is the missing call of ->d_revalidate() after mountpoint
crossing and that's where NFS4 would issue OPEN request to server.

The fix is simple - treat mountpoint crossing the same way we deal with
following procfs-style symlinks.  I.e.  set LOOKUP_JUMPED...

Cc: stable@kernel.org
Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      a3fbbde7
    • Linus Torvalds's avatar
      Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 54a0f913
      Linus Torvalds authored 
      * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf top: Fix live annotation in the --stdio interface
  perf top tui: Don't recalc column widths considering just the first page
  perf report: Add progress bar when processing time ordered events
  perf hists browser: Warn about lost events
  perf tools: Fix a typo of command name as trace-cmd
  perf hists: Fix recalculation of total_period when sorting entries
  perf header: Fix build on old systems
  perf ui browser: Handle K_RESIZE in dialog windows
  perf ui browser: No need to switch char sets that often
  perf hists browser: Use K_TIMER
  perf ui: Rename ui__warning_paranoid to ui__error_paranoid
  perf ui: Reimplement the popup windows using libslang
  perf ui: Reimplement ui__popup_menu using ui__browser
  perf ui: Reimplement ui_helpline using libslang
  perf ui: Improve handling sigwinch a bit
  perf ui progress: Reimplement using slang
  perf evlist: Fix grouping of multiple events
      54a0f913
    • Tony Lindgren's avatar
      Merge branch 'fixes-modulesplit' into fixes · d30cc16c
      Tony Lindgren authored
      d30cc16c
    • Tony Lindgren's avatar
      ARM: OMAP: Fix export.h or module.h includes · a1bcc1dc
      Tony Lindgren authored 
      Commit 32aaeffb (Merge branch
'modsplit-Oct31_2011'...) caused some build errors. Fix these
and make sure we always have export.h or module.h included
for MODULE_ and EXPORT_SYMBOL users:

$ grep -rl ^MODULE_ arch/arm/*omap*/*.c | xargs \
  grep -L linux/module.h
  arch/arm/mach-omap2/dsp.c
  arch/arm/mach-omap2/mailbox.c
  arch/arm/mach-omap2/omap-iommu.c
  arch/arm/mach-omap2/smartreflex.c

Also check we either have export.h or module.h included
for the files exporting symbols:

$ grep -rl EXPORT_SYMBOL arch/arm/*omap*/*.c | xargs \
  grep -L linux/export.h | xargs grep -L linux/module.h

Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
      a1bcc1dc
    • Axel Lin's avatar
      ARM: OMAP: omap_device: Include linux/export.h · 55581415
      Axel Lin authored 
      Include linux/export.h to fix below build warning:

  CC      arch/arm/plat-omap/omap_device.o
arch/arm/plat-omap/omap_device.c:1055: warning: data definition has no type or storage class
arch/arm/plat-omap/omap_device.c:1055: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL'
arch/arm/plat-omap/omap_device.c:1055: warning: parameter names (without types) in function declaration
Signed-off-by: default avatarAxel Lin <axel.lin@gmail.com>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
      55581415
    • Andrzej Kaczmarek's avatar
      Bluetooth: Use miliseconds for L2CAP channel timeouts · f3f668b0
      Andrzej Kaczmarek authored 
      Timers set by __set_chan_timer() should use miliseconds instead of
jiffies. Commit 942ecc9c updated
l2cap_set_timer() so it expects timeout to be specified in msecs
instead of jiffies. This makes timeouts unreliable when CONFIG_HZ
is not set to 1000.
Signed-off-by: default avatarAndrzej Kaczmarek <andrzej.kaczmarek@tieto.com>
Signed-off-by: default avatarGustavo F. Padovan <padovan@profusion.mobi>
      f3f668b0
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · 94956eed
      Linus Torvalds authored 
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (47 commits)
  forcedeth: fix a few sparse warnings (variable shadowing)
  forcedeth: Improve stats counters
  forcedeth: remove unneeded stats updates
  forcedeth: Acknowledge only interrupts that are being processed
  forcedeth: fix race when unloading module
  MAINTAINERS/rds: update maintainer
  wanrouter: Remove kernel_lock annotations
  usbnet: fix oops in usbnet_start_xmit
  ixgbe: Fix compile for kernel without CONFIG_PCI_IOV defined
  etherh: Add MAINTAINERS entry for etherh
  bonding: comparing a u8 with -1 is always false
  sky2: fix regression on Yukon Optima
  netlink: clarify attribute length check documentation
  netlink: validate NLA_MSECS length
  i825xx:xscale:8390:freescale: Fix Kconfig dependancies
  macvlan: receive multicast with local address
  tg3: Update version to 3.121
  tg3: Eliminate timer race with reset_task
  tg3: Schedule at most one tg3_reset_task run
  tg3: Obtain PCI function number from device
  ...
      94956eed
    • Al Viro's avatar
      vfs: d_invalidate() should leave mountpoints alone · 50e69630
      Al Viro authored 
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      50e69630
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