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We need these for detecting the max link speed for drm drivers.
Acked-by: Bjorn Helgaas <bhelgass@google.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Pull drm fixes from Dave Airlie:
"Nothing major in here, one radeon SI fix for tiling, and one uninit
var fix, two minor header file fixes."
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm: drop comment about this header being autogenerated.
drm/edid: don't return stack garbage from supports_rb
vga_switcheroo: Add include guard
drm/radeon: SI tiling fixes for display
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf updates from Ingo Molnar.
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
ftrace: Make all inline tags also include notrace
perf: Use css_tryget() to avoid propping up css refcount
perf tools: Fix synthesizing tracepoint names from the perf.data headers
perf stat: Fix default output file
perf tools: Fix endianity swapping for adds_features bitmask
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Pull NFS client bugfixes from Trond Myklebust:
- Fix a write hang due to an uninitalised variable when
!defined(CONFIG_NFS_V4)
- Address upcall races in the legacy NFSv4 idmapper
- Remove an O_DIRECT refcounting issue
- Fix a pNFS refcounting bug when the file layout metadata server is
also acting as a data server
- Fix a pNFS module loading race.
* tag 'nfs-for-3.5-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
NFS: Force the legacy idmapper to be single threaded
NFS: Initialise commit_info.rpc_out when !defined(CONFIG_NFS_V4)
NFS: Fix a refcounting issue in O_DIRECT
NFSv4.1: Fix a race in set_pnfs_layoutdriver
NFSv4.1: Fix umount when filelayout DS is also the MDS
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Guard vga_switcheroo.h against multiple inclusion.
Signed-off-by: Ozan Çağlayan <ozancag@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging tree fixes from Greg Kroah-Hartman:
"Here are a number of small fixes for the drivers/staging tree, as well
as iio and pstore drivers (which came from the staging tree in the
3.5-rc1 merge). All of these are tiny, but resolve issues that people
have been reporting.
There's also a documentation update to reflect what the iio drivers
really are doing, which is good to get straightened out.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'staging-3.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: r8712u: Add new USB IDs
staging: gdm72xx: Release netlink socket properly
iio: drop wrong reference from Kconfig
pstore/inode: Make pstore_fill_super() static
pstore/ram: Should zap persistent zone on unlink
pstore/ram_core: Factor persistent_ram_zap() out of post_init()
pstore/ram_core: Do not reset restored zone's position and size
pstore/ram: Should update old dmesg buffer before reading
staging:iio:ad7298: Fix linker error due to missing IIO kfifo buffer
Revert "staging: usbip: bugfix for stack corruption on 64-bit architectures"
staging: usbip: bugfix for stack corruption on 64-bit architectures
staging/comedi: fix build for USB not enabled
staging: omapdrm: fix crash when freeing bad fb
staging:iio:ad7606: Re-add missing scale attribute
iio: Fix potential use after free
staging:iio: remove num_interrupt_lines from documentation
iio: documentation: Add out_altvoltage and friends
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core and printk fixes from Greg Kroah-Hartman:
"Here are some fixes for 3.5-rc4 that resolve the kmsg problems that
people have reported showing up after the printk and kmsg changes went
into 3.5-rc1. There are also a smattering of other tiny fixes for the
extcon and hyper-v drivers that people have reported.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'driver-core-3.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
extcon: max8997: Add missing kfree for info->edev in max8997_muic_remove()
extcon: Set platform drvdata in gpio_extcon_probe() and fix irq leak
extcon: Fix wrong index in max8997_extcon_cable[]
kmsg - kmsg_dump() fix CONFIG_PRINTK=n compilation
printk: return -EINVAL if the message len is bigger than the buf size
printk: use mutex lock to stop syslog_seq from going wild
kmsg - kmsg_dump() use iterator to receive log buffer content
vme: change maintainer e-mail address
Extcon: Don't try to create duplicate link names
driver core: fixup reversed deferred probe order
printk: Fix alignment of buf causing crash on ARM EABI
Tools: hv: verify origin of netlink connector message
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* emailed from Andrew Morton <akpm@linux-foundation.org>: (21 patches)
mm/memblock: fix overlapping allocation when doubling reserved array
c/r: prctl: Move PR_GET_TID_ADDRESS to a proper place
pidns: find_new_reaper() can no longer switch to init_pid_ns.child_reaper
pidns: guarantee that the pidns init will be the last pidns process reaped
fault-inject: avoid call to random32() if fault injection is disabled
Viresh has moved
get_maintainer: Fix --help warning
mm/memory.c: fix kernel-doc warnings
mm: fix kernel-doc warnings
mm: correctly synchronize rss-counters at exit/exec
mm, thp: print useful information when mmap_sem is unlocked in zap_pmd_range
h8300: use the declarations provided by <asm/sections.h>
h8300: fix use of extinct _sbss and _ebss
xtensa: use the declarations provided by <asm/sections.h>
xtensa: use "test -e" instead of bashism "test -a"
xtensa: replace xtensa-specific _f{data,text} by _s{data,text}
memcg: fix use_hierarchy css_is_ancestor oops regression
mm, oom: fix and cleanup oom score calculations
nilfs2: ensure proper cache clearing for gc-inodes
thp: avoid atomic64_read in pmd_read_atomic for 32bit PAE
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viresh.kumar@st.com email-id doesn't exist anymore as I have left the
company. Replace ST's id with viresh.linux@gmail.com.
It also updates .mailmap file to fix address for 'git shortlog'
Signed-off-by: Viresh Kumar <viresh.linux@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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On arches that do not support this_cpu_cmpxchg_double() slab_lock is used
to do atomic cmpxchg() on double word which contains page->_count. The
page count can be changed from get_page() or put_page() without taking
slab_lock. That corrupts page counter.
Fix it by moving page->_count out of cmpxchg_double data. So that slub
does no change it while updating slub meta-data in struct page.
[akpm@linux-foundation.org: use standard comment layout, tweak comment text]
Reported-by: Amey Bhide <abhide@nicira.com>
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Most of changes are fairly small and driver-specific.
A remaining regression fix for USB-audio sync pipe check, a fix for
HD-audio power-up sequence, fixes for ASoC pxa-ssp compile issues, and
bunch of ASoC codec and trivial fix patches."
* tag 'sound-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: 6fire: use NULL instead of 0 for pointer assignment
ALSA: hda - Handle open while transitioning to D3.
ALSA: snd-usb: make snd_usb_substream_capture_trigger static
ALSA: snd-usb: fix sync pipe check
ASoC: tegra+wm8903: turn of mic detect when card is removed
ASoC: wm8996: Mark the CODEC as cache only when powering off on boot
ASoC: wm8996: Move reset before the initial regulator disable
ASoC: wm8996: Remove spurious regulator_bulk_free()
ASoC: wm8904: Fix cache only management
ASoC: wm8904: Fix GPIO and MICBIAS initialisation for regmap conversion
ASoC: fix pxa-ssp compiling issue under mach-mmp
ARM: MMP: add pxa910-ssp into ssp_id_table
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Signed-off-by: Kay Sievers <kay@vrfy.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Reported-by: Randy Dunlap <rdunlap@xenotime.net>
Reported-by: Fengguang Wu <wfg@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc
Pull MMC fixes from Chris Ball:
- atmel-mci: Fixes for NULL timer and DMA burst/chunk size
- dw_mmc: Fix DMA ordering, clkdiv calculation, NULL host->data
- mxs_mmc: Compile fix for CONFIG_OF=y && CONFIG_PM=n
- omap: Fix NULL deref in mmc_omap_remove_slot(), reg_shift initialization
- sdhci-s3c: Fix boot regression by adding IRQF_ONESHOT flag
- Small fixes to core/sd, core/sdio, sdhci
* tag 'mmc-fixes-for-3.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc:
mmc: mxs-mmc: Move of_match_table out of CONFIG_PM
mmc: sdhci-s3c: pass IRQF ONESHOT to request threaded irq
mmc: core: return an error on suspend if mmc_deselect_cards fails
mmc: omap: Fix broken reg_shift initialization
mmc: omap: Fix NULL pointer dereference if mmc_omap_new_slot() fails
mmc: omap: Fix a section warning regression
mmc: dw_mmc: correct the calculation for CLKDIV
mmc: dw_mmc: fix incorrect setting of host->data of NULL
mmc: dw_mmc: fix the IDMAC sw reset
mmc: dw_mmc: fix the transmission handling in IDMAC
mmc: sdio: fix setting card data bus width as 4-bit
mmc: atmel-mci: fix burst/chunk size modification
mmc: atmel-mci: fix data timeout issue
mmc: sdhci: Use DBG() instead of pr_warning() on large timeout
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Commit 5963e317b1e9d2a ("ftrace/x86: Do not change stacks in DEBUG when
calling lockdep") prevented lockdep calls from the int3 breakpoint handler
from reseting the stack if a function that was called was in the process
of being converted for tracing and had a breakpoint on it. The idea is,
before calling the lockdep code, do a load_idt() to the special IDT that
kept the breakpoint stack from reseting. This worked well as a quick fix
for this kernel release, until a certain config caused a lockup in the
function tracer start up tests.
Investigating it, I found that the load_idt that was used to prevent
the int3 from changing stacks was itself being traced!
Even though the config had CONFIG_OPTIMIZE_INLINING disabled, and
all 'inline' tags were set to always inline, there were still cases that
it did not inline! This was caused by CONFIG_PARAVIRT_GUEST, where it
would add a pointer to the native_load_idt() which made that function
to be traced.
Commit 45959ee7aa645815a ("ftrace: Do not function trace inlined functions")
only touched the 'inline' tags when CONFIG_OPMITIZE_INLINING was enabled.
PARAVIRT_GUEST shows that this was not enough and we need to also
mark always_inline with notrace as well.
Reported-by: Fengguang Wu <wfg@linux.intel.com>
Tested-by: Fengguang Wu <wfg@linux.intel.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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Currently there is a 'chicken and egg' issue when the DS is also the mounted
MDS. The nfs_match_client() reference from nfs4_set_ds_client bumps the
cl_count, the nfs_client is not freed at umount, and nfs4_deviceid_purge_client
is not called to dereference the MDS usage of a deviceid which holds a
reference to the DS nfs_client. The result is the umount program returns,
but the nfs_client is not freed, and the cl_session hearbeat continues.
The MDS (and all other nfs mounts) lose their last nfs_client reference in
nfs_free_server when the last nfs_server (fsid) is umounted.
The file layout DS lose their last nfs_client reference in destroy_ds
when the last deviceid referencing the data server is put and destroy_ds is
called. This is triggered by a call to nfs4_deviceid_purge_client which
removes references to a pNFS deviceid used by an MDS mount.
The fix is to track how many pnfs enabled filesystems are mounted from
this server, and then to purge the device id cache once that count reaches
zero.
Reported-by: Jorge Mora <Jorge.Mora@netapp.com>
Reported-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Updates for 3.5
All driver specific and fairly small. The pxa-ssp changes are larger
than I'd like but they're build failures and are pretty clear to
inspection.
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Fix warnings on some architectures/configs (not on x86):
include/linux/vga_switcheroo.h:28:30: warning: 'struct pci_dev' declared inside parameter list [enabled by default]
include/linux/vga_switcheroo.h:28:30: warning: its scope is only this definition or declaration, which is probably not what you want [enabled by default]
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Cc: Takashi Iwai <tiwai@suse.de>
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Minchan Kim reports that when a system has many swap areas, and tmpfs
swaps out to the ninth or more, shmem_getpage_gfp()'s attempts to read
back the page cannot locate it, and the read fails with -ENOMEM.
Whoops. Yes, I blindly followed read_swap_header()'s pte_to_swp_entry(
swp_entry_to_pte()) technique for determining maximum usable swap
offset, without stopping to realize that that actually depends upon the
pte swap encoding shifting swap offset to the higher bits and truncating
it there. Whereas our radix_tree swap encoding leaves offset in the
lower bits: it's swap "type" (that is, index of swap area) that was
truncated.
Fix it by reducing the SWP_TYPE_SHIFT() in swapops.h, and removing the
broken radix_to_swp_entry(swp_to_radix_entry()) from read_swap_header().
This does not reduce the usable size of a swap area any further, it
leaves it as claimed when making the original commit: no change from 3.0
on x86_64, nor on i386 without PAE; but 3.0's 512GB is reduced to 128GB
per swapfile on i386 with PAE. It's not a change I would have risked
five years ago, but with x86_64 supported for ten years, I believe it's
appropriate now.
Hmm, and what if some architecture implements its swap pte with offset
encoded below type? That would equally break the maximum usable swap
offset check. Happily, they all follow the same tradition of encoding
offset above type, but I'll prepare a check on that for next.
Reported-and-Reviewed-and-Tested-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: stable@vger.kernel.org [3.1, 3.2, 3.3, 3.4]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Pull NFS client bugfixes from Trond Myklebust:
"Highlights include:
- Fix a couple of mount regressions due to the recent cleanups.
- Fix an Oops in the open recovery code
- Fix an rpc_pipefs upcall hang that results from some of the net
namespace work from 3.4.x (stable kernel candidate).
- Fix a couple of write and o_direct regressions that were found at
last weeks Bakeathon testing event in Ann Arbor."
* tag 'nfs-for-3.5-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
NFS: add an endian notation for sparse
NFSv4.1: integer overflow in decode_cb_sequence_args()
rpc_pipefs: allow rpc_purge_list to take a NULL waitq pointer
NFSv4 do not send an empty SETATTR compound
NFSv2: EOF incorrectly set on short read
NFS: Use the NFS_DEFAULT_VERSION for v2 and v3 mounts
NFS: fix directio refcount bug on commit
NFSv4: Fix unnecessary delegation returns in nfs4_do_open
NFSv4.1: Convert another trivial printk into a dprintk
NFS4: Fix open bug when pnfs module blacklisted
NFS: Remove incorrect BUG_ON in nfs_found_client
NFS: Map minor mismatch error to protocol not support error.
NFS: Fix a commit bug
NFS4: Set parsed mount data version to 4
NFSv4.1: Ensure we clear session state flags after a session creation
NFSv4.1: Convert a trivial printk into a dprintk
NFSv4: Fix up decode_attr_mdsthreshold
NFSv4: Fix an Oops in the open recovery code
NFSv4.1: Fix a request leak on the back channel
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg Kroah-Hartman:
"Here are a bunch of tiny fixes for the USB core and drivers for
3.5-rc3
A bunch of gadget fixes, and new device ids, as well as some fixes for
a number of different regressions that have been reported recently.
We also fixed some PCI host controllers to resolve a long-standing bug
with a whole class of host controllers that have been plaguing people
for a number of kernel releases, preventing their systems from
suspending properly.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'usb-3.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (41 commits)
USB: fix gathering of interface associations
usb: ehci-sh: fix illegal phy_init() running when platform_data is NULL
usb: cdc-acm: fix devices not unthrottled on open
Fix OMAP EHCI suspend/resume failure (i693)
USB: ohci-hub: Mark ohci_finish_controller_resume() as __maybe_unused
usb: use usb_serial_put in usb_serial_probe errors
USB: EHCI: Fix build warning in xilinx ehci driver
USB: fix PS3 EHCI systems
xHCI: Increase the timeout for controller save/restore state operation
xhci: Don't free endpoints in xhci_mem_cleanup()
xhci: Fix invalid loop check in xhci_free_tt_info()
xhci: Fix error path return value.
USB: Checking the wrong variable in usb_disable_lpm()
usb-storage: Add 090c:1000 to unusal-devs
USB: serial-generic: use a single set of device IDs
USB: serial: Enforce USB driver and USB serial driver match
USB: add NO_D3_DURING_SLEEP flag and revert 151b61284776be2
USB: option: add more YUGA device ids
USB: mos7840: Fix compilation of usb serial driver
USB: option: fix memory leak
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull core updates (RCU and locking) from Ingo Molnar:
"Most of the diffstat comes from the RCU slow boot regression fixes,
but there's also a debuggability improvements/fixes."
* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
memblock: Document memblock_is_region_{memory,reserved}()
rcu: Precompute RCU_FAST_NO_HZ timer offsets
rcu: Move RCU_FAST_NO_HZ per-CPU variables to rcu_dynticks structure
rcu: Update RCU_FAST_NO_HZ tracing for lazy callbacks
rcu: RCU_FAST_NO_HZ detection of callback adoption
spinlock: Indicate that a lockup is only suspected
kdump: Execute kmsg_dump(KMSG_DUMP_PANIC) after smp_send_stop()
panic: Make panic_on_oops configurable
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Provide an iterator to receive the log buffer content, and convert all
kmsg_dump() users to it.
The structured data in the kmsg buffer now contains binary data, which
should no longer be copied verbatim to the kmsg_dump() users.
The iterator should provide reliable access to the buffer data, and also
supports proper log line-aware chunking of data while iterating.
Signed-off-by: Kay Sievers <kay@vrfy.org>
Tested-by: Tony Luck <tony.luck@intel.com>
Reported-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Tested-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
- Fix a regression of USB-audio PCM assignment since 3.4
- A few VGA-switcheroo-related fixes for proper HDMI audio enablement
- Fixed the missing initializations of HD-audio verbs, which may have
resulted in various breakage
- Some driver-specific ASoC updates
- A few fixes for the dynamic PCM code
- The addition of pinctrl support for the i.MX audmux which didn't make
it into -rc1 due to cross tree dependency issues
- A few minor fixes in compress API codes
* tag 'sound-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda - Don't forget to call init verbs added by fixup list
ALSA: HDA: Pin fixup for Zotac Z68 motherboard
ALSA: compress_core: cleanup pointers on stop
ALSA: compress_core: don't wake up on pause
ALSA: hda - Fix detection of Creative SoundCore3D controllers
vga_switcheroo: Enable/disable audio clients at the right time
ALSA: hda - HDMI Audio init all connectors when VGA-switcheroo is off
vga_switcheroo: Fix error without CONFIG_VGA_SWITCHEROO
ALSA: hda - Fix uninitialized HDMI controllers with VGA-switcheroo
vga_switcheroo: Add a helper function to get the client state
ALSA: usb-audio: Fix substream assignments
ASoC: tegra: add MODULE_DEVICE_TABLE to tegra30_ahub
ASoC: wm2000: Always use a 4s timeout for the firmware
ASoC: dapm: Fix input list to use source widgets
ASoC: dpcm: Fix dpcm_get_be() to check that DAI is BE
ASoC: wm8994: Apply volume updates with clocks enabled
ASoC: wm8994: Ensure all AIFnCLK events are run from the _late variants
ASoC: imx-audmux: add pinctrl support
ASoC: dapm: Fix connected widget capture path query.
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Pull networking fixes from David S. Miller:
This has the fix for the wireless issues I ran into the other week as
well as:
1) Fix CAN c_can driver transmit handling resulting in BUG check
triggers, from AnilKumar Ch.
2) Fix packet drop monitor sleeping in atomic context, from Eric
Dumazet.
3) Fix mv643xx_eth driver build regression, from Andrew Lunn.
4) Inetpeer freeing needs an RCU grace period in order to avoid races
during tree invalidation. From Eric Dumazet.
5) Fix endianness bugs in xt_HMARK netfilter module, from Hans
Schillstrom.
6) Add proper module refcounting to l2tp_eth to avoid crash on module
unload, from Eric Dumazet.
7) Fix truncation of neighbour entry dumps due to logic errors in
neigh_dump_info() and friends, from Eric Dumazet.
8) The conversion of fib6_age() to dst_neigh_lookup() accidently
reversed the logic of a flags test, fix from Thomas Graf.
9) Fix checksum configuration in newer sky2 chips, from Stephen
Hemminger.
10) Revert BQL support in NIU driver, doesn't work.
11) l2tp_ip_sendmsg() illegally uses a route without a proper reference.
From Eric Dumazet.
12) be2net driver references an SKB after it's potentially been freed,
also from Eric Dumazet.
13) Fix RCU stalls in dummy net driver init. Also from Eric Dumazet.
14) lpc_eth has several bugs in it's transmit engine leading to packet
leaks and improper queue wakes, from Eric Dumazet.
15) Apply short DMA workaround to more tg3 chips, from Matt Carlson.
16) Add tilegx network driver.
17) Bonding queue mapping for a packet can get corrupted, fix from Eric
Dumazet.
18) Fix bug in netpoll_send_udp() SKB management that can leave garbage
in the payload in certain situations. From Eric Dumazet.
19) bnx2x driver interprets chip RX checksum offload incorrectly in
encapsulation situations. Fix from Eric Dumazet.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (75 commits)
bnx2x: fix checksum validation
netpoll: fix netpoll_send_udp() bugs
bonding: Fix corrupted queue_mapping
bonding:record primary when modify it via sysfs
tilegx network driver: initial support
tg3: Apply short DMA frag workaround to 5906
net: stmmac: Fix clock en-/disable calls
lpc_eth: fix tx completion
lpc_eth: add missing ndo_change_mtu()
dummy: fix rcu_sched self-detected stalls
net: Reorder initialization in ip_route_output to fix gcc warning
virtio-net: fix a race on 32bit arches
r8169: avoid NAPI scheduling delay.
net: Make linux/tcp.h C++ friendly (trivial)
netdev: fix drivers/net/phy/ kernel-doc warnings
net/core: fix kernel-doc warnings
be2net: fix a race in be_xmit()
l2tp: fix a race in l2tp_ip_sendmsg()
mac80211: add back channel change flag
NFC: Fix possible NULL ptr deref when getting the name of a socket
...
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A handy function that we will use outside of ram_core soon. But
so far just factor it out and start using it in post_init().
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Without the update, we'll only see the new dmesg buffer after the
reboot, but previously we could see it right away. Making an oops
visible in pstore filesystem before reboot is a somewhat dubious
feature, but removing it wasn't an intentional change, so let's
restore it.
For this we have to make persistent_ram_save_old() safe for calling
multiple times, and also extern it.
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch (as1558) fixes a problem affecting several ASUS computers:
The machine crashes or corrupts memory when going into suspend if the
ehci-hcd driver is bound to any controllers. Users have been forced
to unbind or unload ehci-hcd before putting their systems to sleep.
After extensive testing, it was determined that the machines don't
like going into suspend when any EHCI controllers are in the PCI D3
power state. Presumably this is a firmware bug, but there's nothing
we can do about it except to avoid putting the controllers in D3
during system sleep.
The patch adds a new flag to indicate whether the problem is present,
and avoids changing the controller's power state if the flag is set.
Runtime suspend is unaffected; this matters only for system suspend.
However as a side effect, the controller will not respond to remote
wakeup requests while the system is asleep. Hence USB wakeup is not
functional -- but of course, this is already true in the current state
of affairs.
A similar patch has already been applied as commit
151b61284776be2d6f02d48c23c3625678960b97 (USB: EHCI: fix crash during
suspend on ASUS computers). The patch supersedes that one and reverts
it. There are two differences:
The old patch added the flag at the USB level; this patch
adds it at the PCI level.
The old patch applied to all chipsets with the same vendor,
subsystem vendor, and product IDs; this patch makes an
exception for a known-good system (based on DMI information).
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Dâniel Fraga <fragabr@gmail.com>
Tested-by: Andrey Rahmatullin <wrar@wrar.name>
Tested-by: Steven Rostedt <rostedt@goodmis.org>
Cc: stable <stable@vger.kernel.org>
Reviewed-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/urgent
Merge RCU fixes from Paul E. McKenney:
" This series has four patches, the major point of which is to eliminate
some slowdowns (including boot-time slowdowns) resulting from some
RCU_FAST_NO_HZ changes. The issue with the changes is that posting timers
from the idle loop has no effect if the CPU has entered dyntick-idle
mode because the CPU has already computed its wakeup time, and posting
a timer does not cause it to be recomputed. The short-term fix is for
RCU to precompute the timeout value so that the CPU's calculation is
correct. "
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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pxa-ssp.c uses API like cpu_is_pxa3xx(), cpu_is_pxa2xx(), which is
defined under arch-pxa architecture, and drivers under mach-mmp
can't find it. so just use ssp->type to replace that API.
Signed-off-by: Qiao Zhou <zhouqiao@marvell.com>
Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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add pxa910-ssp into ssp_id_table, and fix pxa-ssp compiling issue
under mach-mmp architect.
Signed-off-by: Qiao Zhou <zhouqiao@marvell.com>
Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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I originally sent this patch to <trivial@kernel.org>, but Jiri Kosina did
not feel that this is fully appropriate for the trivial tree.
Using linux/tcp.h from C++ results in:
cat t.cc
#include <linux/tcp.h>
int main() { }
g++ -c t.cc
In file included from t.cc:1:
/usr/include/linux/tcp.h:72: error: '__u32 __fswab32(__u32)' cannot appear in a constant-expression
/usr/include/linux/tcp.h:72: error: a function call cannot appear in a constant-expression
...
Attached trivial patch fixes this problem.
Tested:
- the t.cc above compiles with g++ and
- the following program generates the same output before/after
the patch:
#include <linux/tcp.h>
#include <stdio.h>
int main ()
{
#define P(a) printf("%s: %08x\n", #a, (int)a)
P(TCP_FLAG_CWR);
P(TCP_FLAG_ECE);
P(TCP_FLAG_URG);
P(TCP_FLAG_ACK);
P(TCP_FLAG_PSH);
P(TCP_FLAG_RST);
P(TCP_FLAG_SYN);
P(TCP_FLAG_FIN);
P(TCP_RESERVED_BITS);
P(TCP_DATA_OFFSET);
#undef P
return 0;
}
Signed-off-by: Paul Pluzhnikov <ppluzhnikov@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Ingo Molnar.
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched: Fix the relax_domain_level boot parameter
sched: Validate assumptions in sched_init_numa()
sched: Always initialize cpu-power
sched: Fix domain iteration
sched/rt: Fix lockdep annotation within find_lock_lowest_rq()
sched/numa: Load balance between remote nodes
sched/x86: Calculate booted cores after construction of sibling_mask
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
"A bit larger than what I'd wish for - half of it is due to hw driver
updates to Intel Ivy-Bridge which info got recently released,
cycles:pp should work there now too, amongst other things. (but we
are generally making exceptions for hardware enablement of this type.)
There are also callchain fixes in it - responding to mostly
theoretical (but valid) concerns. The tooling side sports perf.data
endianness/portability fixes which did not make it for the merge
window - and various other fixes as well."
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (26 commits)
perf/x86: Check user address explicitly in copy_from_user_nmi()
perf/x86: Check if user fp is valid
perf: Limit callchains to 127
perf/x86: Allow multiple stacks
perf/x86: Update SNB PEBS constraints
perf/x86: Enable/Add IvyBridge hardware support
perf/x86: Implement cycles:p for SNB/IVB
perf/x86: Fix Intel shared extra MSR allocation
x86/decoder: Fix bsr/bsf/jmpe decoding with operand-size prefix
perf: Remove duplicate invocation on perf_event_for_each
perf uprobes: Remove unnecessary check before strlist__delete
perf symbols: Check for valid dso before creating map
perf evsel: Fix 32 bit values endianity swap for sample_id_all header
perf session: Handle endianity swap on sample_id_all header data
perf symbols: Handle different endians properly during symbol load
perf evlist: Pass third argument to ioctl explicitly
perf tools: Update ioctl documentation for PERF_IOC_FLAG_GROUP
perf tools: Make --version show kernel version instead of pull req tag
perf tools: Check if callchain is corrupted
perf callchain: Make callchain cursors TLS
...
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git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus
Pull minor module param fixes from Rusty Russell:
"One bugfix for multiple moduleparam levels, one removal of overzealous
printk."
* tag 'moduleparam-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
init: Drop initcall level output
module_param: stop double-calling parameters.
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Fix a typo that is built only when CONFIG_VGA_SWITCHEROO=n.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Add vga_switcheroo_get_client_state() to get the current state of the
client. This is necessary to determine the proper initial state of
audio clients in HD-audio driver.
Acked-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Commit 026cee0086fe1df4cf74691cf273062cc769617d "params:
<level>_initcall-like kernel parameters" set old-style module
parameters to level 0. And we call those level 0 calls where we used
to, early in start_kernel().
We also loop through the initcall levels and call the levelled
module_params before the corresponding initcall. Unfortunately level
0 is early_init(), so we call the standard module_param calls twice.
(Turns out most things don't care, but at least ubi.mtd does).
Change the level to -1 for standard module_param calls.
Reported-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: stable@kernel.org
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Zero is written at clear_tid_address when the process exits. This
functionality is used by pthread_join().
We already have sys_set_tid_address() to change this address for the
current task but there is no way to obtain it from user space.
Without the ability to find this address and dump it we can't restore
pthread'ed apps which call pthread_join() once they have been restored.
This patch introduces the PR_GET_TID_ADDRESS prctl option which allows
the current process to obtain own clear_tid_address.
This feature is available iif CONFIG_CHECKPOINT_RESTORE is set.
[akpm@linux-foundation.org: fix prctl numbering]
Signed-off-by: Andrew Vagin <avagin@openvz.org>
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: Pedro Alves <palves@redhat.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Pavel Emelyanov <xemul@parallels.com>
Cc: Tejun Heo <tj@kernel.org>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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A fix for commit b32dfe377102 ("c/r: prctl: add ability to set new
mm_struct::exe_file").
After removing mm->num_exe_file_vmas kernel keeps mm->exe_file until
final mmput(), it never becomes NULL while task is alive.
We can check for other mapped files in mm instead of checking
mm->num_exe_file_vmas, and mark mm with flag MMF_EXE_FILE_CHANGED in
order to forbid second changing of mm->exe_file.
Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Reviewed-by: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Matt Helsley <matthltc@us.ibm.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This patch addresses two issues:
a) Fix usage of u32 and __be32 that causes endianess warnings via sparse.
b) Ensure consistent hashing in a cluster that is composed of big and
little endian systems. Thus, we obtain the same hash mark in an
heterogeneous cluster.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Hans Schillstrom <hans@schillstrom.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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When a CPU is entering dyntick-idle mode, tick_nohz_stop_sched_tick()
calls rcu_needs_cpu() see if RCU needs that CPU, and, if not, computes the
next wakeup time based on the timer wheels. Only later, when actually
entering the idle loop, rcu_prepare_for_idle() will be invoked. In some
cases, rcu_prepare_for_idle() will post timers to wake the CPU back up.
But all for naught: The next wakeup time for the CPU has already been
computed, and posting a timer afterwards does not force that wakeup
time to be recomputed. This means that rcu_prepare_for_idle()'s have
no effect.
This is not a problem on a busy system because something else will wake
up the CPU soon enough. However, on lightly loaded systems, the CPU
might stay asleep for a considerable length of time. If that CPU has
a callback that the rest of the system is waiting on, the system might
run very slowly or (in theory) even hang.
This commit avoids this problem by having rcu_needs_cpu() give
tick_nohz_stop_sched_tick() an estimate of when RCU will need the CPU
to wake back up, which tick_nohz_stop_sched_tick() takes into account
when programming the CPU's wakeup time. An alternative approach is
for rcu_prepare_for_idle() to use hrtimers instead of normal timers,
but timers are much more efficient than are hrtimers for frequently
and repeatedly posting and cancelling a given timer, which is exactly
what RCU_FAST_NO_HZ does.
Reported-by: Pascal Chapperon <pascal.chapperon@wanadoo.fr>
Reported-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Tested-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Tested-by: Pascal Chapperon <pascal.chapperon@wanadoo.fr>
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Stack depth of 255 seems excessive, given that copy_from_user_nmi()
could be slow.
Signed-off-by: Arun Sharma <asharma@fb.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1334961696-19580-3-git-send-email-asharma@fb.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Weird topologies can lead to asymmetric domain setups. This needs
further consideration since these setups are typically non-minimal
too.
For now, make it work by adding an extra mask selecting which CPUs
are allowed to iterate up.
The topology that triggered it is the one from David Rientjes:
10 20 20 30
20 10 20 20
20 20 10 20
30 20 20 10
resulting in boxes that wouldn't even boot.
Reported-by: David Rientjes <rientjes@google.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-3p86l9cuaqnxz7uxsojmz5rm@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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SDIO_CCCR_IF[1:0] in SDIO card is used for card data bus width
setting as below:
00b: 1-bit bus
01b: Reserved
10b: 4-bit bus
11b: 8-bit bus (only for embedded SDIO)
And sdio_enable_wide is for setting data bus width as 4-bit.
But currently, it first reads the register, second OR' 1b with
SDIO_CCCR_IF[1], and then writes it back.
As we can see, this is based on such assumption that the
SDIO_CCCR_IF[0] is always 0. Apparently, this is not right.
Signed-off-by: Yong Ding <yongd@marvell.com>
Acked-by: Philip Rakity <prakity@marvell.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent
Pull perf fixes from Arnaldo Carvalho de Melo:
* Endianness fixes from Jiri Olsa
* Fixes for make perf tarball
* Fix for DSO name in perf script callchains, from David Ahern
* Segfault fixes for perf top --callchain, from Namhyung Kim
* Minor function result fixes from Srikar Dronamraju
* Add missing 3rd ioctl parameter, from Namhyung Kim
* Fix pager usage in minimal embedded systems, from Avik Sil
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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The new commit code fails to copy the verifier into the wb_verf field
of _all_ the nfs_page structures; it only copies it into the first entry.
The consequence is that most requests end up failing to match in
nfs_commit_release.
Fix is to copy the verifier into the req->wb_verf field in
nfs_write_completion.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: Fred Isaman <iisaman@netapp.com>
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git://git.pengutronix.de/git/wsa/linux
Pull embedded i2c update from Wolfram Sang:
"This only contains one new driver which had multiple dependencies
(pinctrl, i2c-mux-rework, new devm_* functions), so I decided to wait
for rc1. Plus, it had to wait a little for the ack of a devicetree
maintainer since the bindings were not trivial enough for me to pass
through.
So, given that, I hope there is still something like the "new driver
rule", so we could have the driver in 3.5 and people can start using
it. That would make merging support for some boards easier for 3.6
since the dependency on this driver is gone then."
* 'i2c-embedded/for-current' of git://git.pengutronix.de/git/wsa/linux:
i2c: Add generic I2C multiplexer using pinctrl API
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This patch fixes bug in macro radix_tree_for_each_contig().
If radix_tree_next_slot() sees NULL in next slot it returns NULL, but following
radix_tree_next_chunk() switches iterating into next chunk. As result iterating
becomes non-contiguous and breaks vfs "splice" and all its users.
Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Reported-and-bisected-by: Hans de Bruin <jmdebruin@xmsnet.nl>
Reported-and-bisected-by: Ondrej Zary <linux@rainbow-software.org>
Reported-bisected-and-tested-by: Toralf Förster <toralf.foerster@gmx.de>
Link: https://lkml.org/lkml/2012/6/5/64
Cc: stable <stable@vger.kernel.org> # 3.4.x
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Pull fuse updates from Miklos Szeredi.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
fuse: fix blksize calculation
fuse: fix stat call on 32 bit platforms
fuse: optimize fallocate on permanent failure
fuse: add FALLOCATE operation
fuse: Convert to kstrtoul_from_user
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