| Commit message (Collapse) | Author | Age | Files | Lines |
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git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* 'sh/for-2.6.31' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
serial: sh-sci: fix sci interrupt handler
video: hitfb: Move over to dev_pm_ops.
video: hitfb: Convert to framebuffer_alloc().
video: sh_mobile_lcdcfb: Convert to framebuffer_alloc().
sh: add r8a66597 usb0 host to the se7724 board
usb: allow sh7724 to enable on-chip r8a66597
sh-sci: update receive error handling for muxed irqs
sh: define PERF_COUNTER_INDEX_OFFSET.
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Fix up the error bit handling on SCI ports.
Signed-off-by: SUGIOKA Toshinobu <sugioka@itonet.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into sh/for-2.6.31
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A trivial update to move hitfb over to dev_pm_ops.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Follows the sh_mobile_lcdcfb change.
Also fixes up a memory leak with cmap allocation.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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All fb_info structures need to be allocated with framebuffer_alloc() due
to special initialization. Switch over to it.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Add USB host support for port CN27 on the Solution Engine 7724
board. The r8a66597-hcd driver is hooked up as a platform device
and some registers are configured to enable the USB host function.
The hardware driving the USB port is the on-chip USB0 block in
the sh7724 processor configured as USB host controller.
Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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The sh7724 processor has two on-chip r8a66597 blocks, so add
it to the list of processors for SUPERH_ON_CHIP_R8A66597.
Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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This patch updates the receive error code for muxed
interrupts in the sh-sci driver.
Receive error interrupts may be generated by the hardware
if RE or REIE bits in SCSCR are set. Update the muxed
interrupt handling code to acknowledge error interrupts
if RE or REIE is set, instead of only acknowledging if
REIE is set.
Without this patch error interrupts may be generated but
never acked resulting in a "nobody cared" crash.
Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Fixes up recent build breakage.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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This reverts commit 4148df9b0f38bdd362dd91d52076926c11cbe5a9.
Let's hope that the mm_lock initialization is now correct with all
drivers, following Krzysztof's patches.
Requested-by: Krzysztof Helt <krzysztof.h1@poczta.fm>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Remove redundant locking by the mm_lock mutex before a second head of
matrox framebuffer is registered.
This fixes a problem with uninitialized the fb_info->mm_lock mutex
introduced by the commit 537a1bf059f " fbdev: add mutex for fb_mmap
locking"
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Remove redundant call to the matroxfb_update_fix() before matrox
frambuffer is registered.
This fixes a problem with uninitialized the fb_info->mm_lock mutex
introduced by the commit 537a1bf059f " fbdev: add mutex for fb_mmap
locking"
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Remove redundant call to the w100fb_set_par() before w100 frambuffer is
registered.
This fixes a problem with uninitialized the fb_info->mm_lock mutex
introduced by the commit 537a1bf059f " fbdev: add mutex for fb_mmap
locking"
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Remove redundant locking of the fb_info->mm_lock mutex before the
frambuffer is registered.
This fixes a problem with uninitialized the fb_info->mm_lock mutex
introduced by the commit 537a1bf059f " fbdev: add mutex for fb_mmap
locking"
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Remove redundant call to the encode_fix() before i810 frambuffer is
registered.
This fixes a problem with uninitialized the fb_info->mm_lock mutex
introduced by the commit 537a1bf059f " fbdev: add mutex for fb_mmap
locking"
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Commit a65e7bfcd74e4c0939f235d2bf9f48ddb3a57991 broke the UML build with
the following error -
In file included from fs/proc/kcore.c:17:
include/linux/elfcore.h: In function 'elf_core_copy_task_regs':
include/linux/elfcore.h:129: error: implicit declaration of function 'task_pt_regs'
Fix this by restoring the previous behavior of returning 0 for all arches
like UML that don't define task_pt_regs.
Signed-off-by: Parag Warudkar <parag.lkml@gmail.com>
Acked-by: Amerigo Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86: fix usage of bios intcall()
x86: Remove unused function lapic_watchdog_ok()
x86: Remove unused variable disable_x2apic
x86, kvm: Fix section mismatches in kvm.c
x86: Add missing annotation to arch/x86/lib/copy_user_64.S::copy_to_user
x86: Fix fixmap page order for FIX_TEXT_POKE0,1
amd-iommu: set evt_buf_size correctly
amd-iommu: handle alias entries correctly in init code
x86: Fix printk call in print_local_apic()
x86: Declare check_efer() before it gets used
x86: Mark device_nb as static and fix NULL noise
x86: Remove double declaration of MSR_P6_EVNTSEL0 and MSR_P6_EVNTSEL1
xen: Use kcalloc() in xen_init_IRQ()
x86: Fix fixmap ordering
x86: Fix symbol annotation for arch/x86/lib/clear_page_64.S::clear_page_c
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Some intcall() misuses the input biosregs as output in
cf06de7b9cdd3efee7a59dced1977b3c21d43732
This fixes the problem vga=ask boot option doesn't show enough modes.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
LKML-Reference: <20090701021307.GA3127@localhost.localdomain>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/joro/linux-2.6-iommu into x86/urgent
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The setting of this variable got lost during the suspend/resume
implementation. But keeping this variable zero causes a divide-by-zero
error in the interrupt handler. This patch fixes this.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
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An alias entry in the ACPI table means that the device can send requests to the
IOMMU with both device ids, its own and the alias. This is not handled properly
in the ACPI init code. This patch fixes the issue.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
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lapic_watchdog_ok() is a global function but no one is using it.
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Yinghai Lu <yinghai@kernel.org>
LKML-Reference: <1246554335.2242.29.camel@jaswinder.satnam>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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setup_nox2apic() is writing 1 to disable_x2apic but no one is reading it.
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Cyrill Gorcunov <gorcunov@gmail.com>
LKML-Reference: <1246554239.2242.27.camel@jaswinder.satnam>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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The function paravirt_ops_setup() has been refering the
variable no_timer_check, which is a __initdata. Thus generates
the following warning. paravirt_ops_setup() function is called
from kvm_guest_init() which is a __init function. So to fix
this we mark paravirt_ops_setup as __init.
The sections-check output that warned us about this was:
LD arch/x86/built-in.o
WARNING: arch/x86/built-in.o(.text+0x166ce): Section mismatch in
reference from the function paravirt_ops_setup() to the variable
.init.data:no_timer_check
The function paravirt_ops_setup() references
the variable __initdata no_timer_check.
This is often because paravirt_ops_setup lacks a __initdata
annotation or the annotation of no_timer_check is wrong.
Signed-off-by: Rakib Mullick <rakib.mullick@gmail.com>
Acked-by: Avi Kivity <avi@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
LKML-Reference: <b9df5fa10907012240y356427b8ta4bd07f0efc6a049@mail.gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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While examining symbol generation in perf_counter tools, I
noticed that copy_to_user() had no size in vmlinux's symtab.
Signed-off-by: Mike Galbraith <efault@gmx.de>
Acked-by: Alexander van Heukelum <heukelum@fastmail.fm>
Acked-by: Cyrill Gorcunov <gorcunov@openvz.org>
LKML-Reference: <1246512440.13293.3.camel@marge.simson.net>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Masami reported:
> Since the fixmap pages are assigned higher address to lower,
> text_poke() has to use it with inverted order (FIX_TEXT_POKE1
> to FIX_TEXT_POKE0).
I prefer to just invert the order of the fixmap declaration.
It's simpler and more straightforward.
Backward fixmaps seems to be used by both x86 32 and 64.
It's really rare but a nasty bug, because it only hurts when
instructions to patch are crossing a page boundary. If this
happens, the fixmap write accesses will spill on the following
fixmap, which may very well crash the system. And this does not
crash the system, it could leave illegal instructions in place.
Thanks Masami for finding this.
It seems to have crept into the 2.6.30-rc series, so this calls
for a -stable inclusion.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Acked-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: <stable@kernel.org>
LKML-Reference: <20090701213722.GH19926@Krystal>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Instead of this:
[ 75.690022] <7>printing local APIC contents on CPU#0/0:
[ 75.704406] ... APIC ID: 00000000 (0)
[ 75.707905] ... APIC VERSION: 00060015
[ 75.722551] ... APIC TASKPRI: 00000000 (00)
[ 75.725473] ... APIC PROCPRI: 00000000
[ 75.728592] ... APIC LDR: 00000001
[ 75.742137] ... APIC SPIV: 000001ff
[ 75.744101] ... APIC ISR field:
[ 75.746648] 0123456789abcdef0123456789abcdef
[ 75.746649] <7>00000000000000000000000000000000
Improve the code to be saner and simpler and just print out
the bitfield in a single line using hexa values - not as a
(rather pointless) binary bitfield.
Partially reused Linus's initial fix for this.
Reported-and-Tested-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
LKML-Reference: <4A4C43BC.90506@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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This sparse warning:
arch/x86/mm/init.c:83:16: warning: symbol 'check_efer' was not declared. Should it be static?
triggers because check_efer() is not decalared before using it.
asm/proto.h includes the declaration of check_efer(), so
including asm/proto.h to fix that - this also addresses the
sparse warning.
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
LKML-Reference: <1246458263.6940.22.camel@hpdv5.satnam>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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This sparse warning:
arch/x86/kernel/amd_iommu.c:1195:23: warning: symbol 'device_nb' was not declared. Should it be static?
triggers because device_nb is global but is only used in a
single .c file. change device_nb to static to fix that - this
also addresses the sparse warning.
This sparse warning:
arch/x86/kernel/amd_iommu.c:1766:10: warning: Using plain integer as NULL pointer
triggers because plain integer 0 is used in place of a NULL
pointer. change 0 to NULL to fix that - this also address the
sparse warning.
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Cc: Joerg Roedel <joerg.roedel@amd.com>
LKML-Reference: <1246458194.6940.20.camel@hpdv5.satnam>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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MSR_P6_EVNTSEL0 and MSR_P6_EVNTSEL1 is already declared in msr-index.h.
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
LKML-Reference: <1246450778.6940.8.camel@hpdv5.satnam>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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The init_IRQ() function is now called with slab allocator initialized.
Therefore, we must not use the bootmem allocator in xen_init_IRQ().
Fixes the following boot-time warning:
------------[ cut here ]------------
WARNING: at mm/bootmem.c:535 alloc_arch_preferred_bootmem+0x27/0x45()
Modules linked in:
Pid: 0, comm: swapper Not tainted 2.6.30 #1
Call Trace:
[<ffffffff8102d6e3>] ? warn_slowpath_common+0x73/0xb0
[<ffffffff810210d9>] ? pvclock_clocksource_read+0x49/0x90
[<ffffffff812e522f>] ? alloc_arch_preferred_bootmem+0x27/0x45
[<ffffffff812e5761>] ? ___alloc_bootmem_nopanic+0x39/0xc9
[<ffffffff812e57fa>] ? ___alloc_bootmem+0x9/0x2f
[<ffffffff812e9e21>] ? xen_init_IRQ+0x25/0x61
[<ffffffff812d69ee>] ? start_kernel+0x1b5/0x29e
---[ end trace 4eaa2a86a8e2da22 ]---
Acked-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Tested-by: Christian Kujau <lists@nerdbynature.de>
Reported-by: Christian Kujau <lists@nerdbynature.de>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: lists@nerdbynature.de
Cc: jeremy.fitzhardinge@citrix.com
LKML-Reference: <1246438278.22417.28.camel@penberg-laptop>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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The merge of the 32- and 64-bit fixmap headers made a latent
bug on x86-64 a real one: with the right config settings
it is possible for FIX_OHCI1394_BASE to overlap the FIX_BTMAP_*
range.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Cc: <stable@kernel.org> # for 2.6.30.x
LKML-Reference: <4A4A0A8702000078000082E8@vpn.id2.novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Noticed the zero-sized function symbol while looking at 'perf' profiles,
it causes the profiler to display those addresses in hexa.
Turns out that this was wrong/bogus for an eternity.
Signed-off-by: Mike Galbraith <efault@gmx.de>
Acked-by: Alexander van Heukelum <heukelum@fastmail.fm>
Acked-by: Cyrill Gorcunov <gorcunov@gmail.com>
LKML-Reference: <1246366820.6538.1.camel@marge.simson.net>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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* master.kernel.org:/home/rmk/linux-2.6-arm:
[ARM] amba: fix amba device resources
[ARM] pgtable: file pte layout documentation
[ARM] pgtable: swp pte layout documentation, definitions, and check
[ARM] export __cpu_flush_dcache_page
[ARM] 5576/1: Update kb9202_defconfig
[ARM] 5581/1: U300 clock updates
[ARM] 5579/1: Updated U300 defconfig
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AMBA device resources were being reported as:
10004000-10004fff : <BAD>
This is because dev_name() was returning NULL prior to device_register.
Ensure that the struct device is properly initialized, and the name is
set before adding it to the device tree.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Document the layout of our file PTE entries.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Document the layout of our swp PTE entries, adding definitions for
the bit masks/shifts/sizes, and implement MAX_SWAPFILES_CHECK()
such that we fail to build if we are unable to properly encode the
swp type field.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Now required for libsas:
Kernel: arch/arm/boot/Image is ready
Kernel: arch/arm/boot/zImage is ready
Building modules, stage 2.
MODPOST 1096 modules
ERROR: "xscale_flush_kern_dcache_page" [drivers/scsi/libsas/libsas.ko] undefined!
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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The default configuration file for the KwikByte kb9202 board was based on a 2.6.13-rc2 kernel and doesn't produce a bootable kernel. Update the
configuration in order to produce a bootable image.
Signed-off-by: Matthias Kaehlcke <matthias@kaehlcke.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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This adds a few default locks to the clocks (the clocks were used
before the locks were initialized by code), then renames the clocks
a bit to fit with the latest driver names (some changed during
review). Lastly it moves the initialization of the clock debugfs
entry to module_init() initcall level since the debugfs isn't up
in core_initcall().
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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This defconfig update selects all the new U300 drivers merged for
2.6.31-rc1 in the merge window and add defaults for the new
config options. It compiles and boots nicely from initramfs on
the U300.
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-2.6:
Revert "ide: improve handling of Power Management requests"
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This reverts commit a1317f714af7aed60ddc182d0122477cbe36ee9b.
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (39 commits)
Revert "p54: Use SKB list handling helpers instead of by-hand code."
sctp: fix warning at inet_sock_destruct() while release sctp socket
tun/tap: Fix crashes if open() /dev/net/tun and then poll() it.
dsa: fix 88e6xxx statistics counter snapshotting
forcedeth: Fix NAPI race.
drivers/net/smsc911x.c: Fix resource size off by 1 error
pcnet_cs: add new id
bnx2x: Fix the maximal values of coalescing timeouts.
bnx2x: Disable HC coalescing when setting timeout to zero.
tun: Fix device unregister race
be2net: fix spurious interrupt handling in intx mode
e1000e: disable K1 at 1000Mbps for 82577/82578
e1000e: delay second read of PHY_STATUS register on failure of first read
e1000e: prevent NVM corruption on sectors larger than 4K
e1000e: do not write SmartSpeed register bits on parts without support
e1000e: delay after LCD reset and proper checks for PHY configuration done
e1000e: PHY loopback broken on 82578
ixgbe: Not allow 8259x unsupported wol options change from ethtool
ixgbe: fix inconsistent SFP/SFP+ failure results.
ixgbe: fix regression on some 82598 adapters
...
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This reverts commit a1091aae19b1d9c85d91c86915a611387f67a26b.
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Commit 'net: Move rx skb_orphan call to where needed' broken sctp protocol
with warning at inet_sock_destruct(). Actually, sctp can do this right with
sctp_sock_rfree_frag() and sctp_skb_set_owner_r_frag() pair.
sctp_sock_rfree_frag(skb);
sctp_skb_set_owner_r_frag(skb, newsk);
This patch not revert the commit d55d87fdff8252d0e2f7c28c2d443aee17e9d70f,
instead remove the sctp_sock_rfree_frag() function.
------------[ cut here ]------------
WARNING: at net/ipv4/af_inet.c:151 inet_sock_destruct+0xe0/0x142()
Modules linked in: sctp ipv6 dm_mirror dm_region_hash dm_log dm_multipath
scsi_mod ext3 jbd uhci_hcd ohci_hcd ehci_hcd [last unloaded: scsi_wait_scan]
Pid: 1808, comm: sctp_test Not tainted 2.6.31-rc2 #40
Call Trace:
[<c042dd06>] warn_slowpath_common+0x6a/0x81
[<c064a39a>] ? inet_sock_destruct+0xe0/0x142
[<c042dd2f>] warn_slowpath_null+0x12/0x15
[<c064a39a>] inet_sock_destruct+0xe0/0x142
[<c05fde44>] __sk_free+0x19/0xcc
[<c05fdf50>] sk_free+0x18/0x1a
[<ca0d14ad>] sctp_close+0x192/0x1a1 [sctp]
[<c0649f7f>] inet_release+0x47/0x4d
[<c05fba4d>] sock_release+0x19/0x5e
[<c05fbab3>] sock_close+0x21/0x25
[<c049c31b>] __fput+0xde/0x189
[<c049c3de>] fput+0x18/0x1a
[<c049988f>] filp_close+0x56/0x60
[<c042f422>] put_files_struct+0x5d/0xa1
[<c042f49f>] exit_files+0x39/0x3d
[<c043086a>] do_exit+0x1a5/0x5dd
[<c04a86c2>] ? d_kill+0x35/0x3b
[<c0438fa4>] ? dequeue_signal+0xa6/0x115
[<c0430d05>] do_group_exit+0x63/0x8a
[<c0439504>] get_signal_to_deliver+0x2e1/0x2f9
[<c0401d9e>] do_notify_resume+0x7c/0x6b5
[<c043f601>] ? autoremove_wake_function+0x0/0x34
[<c04a864e>] ? __d_free+0x3d/0x40
[<c04a867b>] ? d_free+0x2a/0x3c
[<c049ba7e>] ? vfs_write+0x103/0x117
[<c05fc8fa>] ? sys_socketcall+0x178/0x182
[<c0402a56>] work_notifysig+0x13/0x19
---[ end trace 9db92c463e789fba ]---
Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fix NULL pointer dereference in tun_chr_pool() introduced by commit
33dccbb050bbe35b88ca8cf1228dcf3e4d4b3554 ("tun: Limit amount of queued
packets per device") and triggered by this code:
int fd;
struct pollfd pfd;
fd = open("/dev/net/tun", O_RDWR);
pfd.fd = fd;
pfd.events = POLLIN | POLLOUT;
poll(&pfd, 1, 0);
Reported-by: Eugene Kapun <abacabadabacaba@gmail.com>
Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The bit that tells us whether a statistics counter snapshot operation
has completed is located in the GLOBAL register block, not in the
GLOBAL2 register block, so fix up mv88e6xxx_stats_wait() to poll the
right register address.
Signed-off-by: Stephane Contri <Stephane.Contri@grassvalley.com>
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Cc: stable@kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
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Eric Dumazet a écrit :
> Ingo Molnar a écrit :
>>> The following changes since commit 52989765629e7d182b4f146050ebba0abf2cb0b7:
>>> Linus Torvalds (1):
>>> Merge git://git.kernel.org/.../davem/net-2.6
>>>
>>> are available in the git repository at:
>>>
>>> master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6.git master
>> Hm, something in this lot quickly wrecked networking here - see the
>> tx timeout dump below. It starts with:
>>
>> [ 351.004596] WARNING: at net/sched/sch_generic.c:246 dev_watchdog+0x10b/0x19c()
>> [ 351.011815] Hardware name: System Product Name
>> [ 351.016220] NETDEV WATCHDOG: eth0 (forcedeth): transmit queue 0 timed out
>>
>> Config attached. Unfortunately i've got no time to do bisection
>> today.
>
>
>
> forcedeth might have a problem, in its netif_wake_queue() logic, but
> I could not see why a recent patch could make this problem visible now.
>
> CPU0/1: AMD Athlon(tm) 64 X2 Dual Core Processor 3800+ stepping 02
> is not a new cpu either :)
>
> forcedeth uses an internal tx_stop without appropriate barrier.
>
> Could you try following patch ?
>
> (random guess as I dont have much time right now)
We might have a race in napi_schedule(), leaving interrupts disabled forever.
I cannot test this patch, I dont have the hardware...
Tested-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: David S. Miller <davem@davemloft.net>
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