| Commit message (Collapse) | Author | Age |
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When setting the direction of one GPIO pin we have to keep the state of the
other pins, hence use binary OR. Also gpio_direction_output() wants to set an
initial value, so add that too.
This fixes a problem with the USB power switch on mtx-1 boards.
Signed-off-by: Bruno Randolf <br1@einfach.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
timers: fix build error in !oneshot case
x86: c1e_idle: don't mark TSC unstable if CPU has invariant TSC
x86: prevent C-states hang on AMD C1E enabled machines
clockevents: prevent mode mismatch on cpu online
clockevents: check broadcast device not tick device
clockevents: prevent stale tick_next_period for onlining CPUs
x86: prevent stale state of c1e_mask across CPU offline/online
clockevents: prevent cpu online to interfere with nohz
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Impact: Functional TSC is marked unstable on AMD family 0x10 and 0x11 CPUs.
This would be wrong because for those CPUs "invariant TSC" means:
"The TSC counts at the same rate in all P-states, all C states, S0,
or S1"
(See "Processor BIOS and Kernel Developer's Guides" for those CPUs.)
[ tglx: Changed C1E to AMD C1E in the printks to avoid confusion
with Intel C1E ]
Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Impact: System hang when AMD C1E machines switch into C2/C3
AMD C1E enabled systems do not work with normal ACPI C-states
even if the BIOS is advertising them. Limit the C-states to
C1 for the ACPI processor idle code.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Impact: hang which happens across CPU offline/online on AMD C1E systems.
When a CPU goes offline then the corresponding bit in the broadcast
mask is cleared. For AMD C1E enabled CPUs we do not reenable the
broadcast when the CPU comes online again as we do not clear the
corresponding bit in the c1e_mask, which keeps track which CPUs
have been switched to broadcast already. So on those !$@#& machines
we never switch back to broadcasting after a CPU offline/online cycle.
Clear the bit when the CPU plays dead.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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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 27-rc crash on vsmp due to paravirt during module load
x86, oprofile: BUG scheduling while atomic
AMD IOMMU: protect completion wait loop with iommu lock
AMD IOMMU: set iommu sunc flag after command queuing
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27-rc fails to boot up if configured to use modules.
Turns out vsmp_patch was marked __init, and vsmp_patch being the
pvops 'patch' routine for vsmp, a call to vsmp_patch just turns out
to execute a code page with series of 0xcc (POISON_FREE_INITMEM -- int3).
vsmp_patch has been marked with __init ever since pvops, however,
apply_paravirt can be called during module load causing calls to
freed memory location.
Since apply_paravirt can only be called during init/module load, make
vsmp_patch with "__init_or_module"
Signed-off-by: Ravikiran Thirumalai <kiran@scalex86.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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nmi_shutdown() calls unregister_die_notifier() from an atomic context
after setting preempt_disable() via get_cpu_var():
[ 1049.404154] BUG: scheduling while atomic: oprofiled/7796/0x00000002
[ 1049.404171] INFO: lockdep is turned off.
[ 1049.404176] Modules linked in: oprofile af_packet rfcomm l2cap kvm_intel kvm i915 drm acpi_cpufreq cpufreq_userspace cpufreq_conservative cpufreq_ondemand cpufreq_powersave freq_table container sbs sbshc dm_mod arc4 ecb cryptomgr aead snd_hda_intel crypto_blkcipher snd_pcm_oss crypto_algapi snd_pcm iwlagn iwlcore snd_timer iTCO_wdt led_class btusb iTCO_vendor_support snd psmouse bluetooth mac80211 soundcore cfg80211 snd_page_alloc intel_agp video output button battery ac dcdbas evdev ext3 jbd mbcache sg sd_mod piix ata_piix libata scsi_mod dock tg3 libphy ehci_hcd uhci_hcd usbcore thermal processor fan fuse
[ 1049.404362] Pid: 7796, comm: oprofiled Not tainted 2.6.27-rc5-mm1 #30
[ 1049.404368] Call Trace:
[ 1049.404384] [<ffffffff804769fd>] thread_return+0x4a0/0x7d3
[ 1049.404396] [<ffffffff8026ad92>] generic_exec_single+0x52/0xe0
[ 1049.404405] [<ffffffff8026ae1a>] generic_exec_single+0xda/0xe0
[ 1049.404414] [<ffffffff8026aee3>] smp_call_function_single+0x73/0x150
[ 1049.404423] [<ffffffff804770c5>] schedule_timeout+0x95/0xd0
[ 1049.404430] [<ffffffff80476083>] wait_for_common+0x43/0x180
[ 1049.404438] [<ffffffff80476154>] wait_for_common+0x114/0x180
[ 1049.404448] [<ffffffff80236980>] default_wake_function+0x0/0x10
[ 1049.404457] [<ffffffff8024f810>] synchronize_rcu+0x30/0x40
[ 1049.404463] [<ffffffff8024f890>] wakeme_after_rcu+0x0/0x10
[ 1049.404472] [<ffffffff80479ca0>] _spin_unlock_irqrestore+0x40/0x80
[ 1049.404482] [<ffffffff80256def>] atomic_notifier_chain_unregister+0x3f/0x60
[ 1049.404501] [<ffffffffa03d8801>] nmi_shutdown+0x51/0x90 [oprofile]
[ 1049.404517] [<ffffffffa03d6134>] oprofile_shutdown+0x34/0x70 [oprofile]
[ 1049.404532] [<ffffffffa03d721e>] event_buffer_release+0xe/0x40 [oprofile]
[ 1049.404543] [<ffffffff802bdcdd>] __fput+0xcd/0x240
[ 1049.404551] [<ffffffff802baa74>] filp_close+0x54/0x90
[ 1049.404560] [<ffffffff8023e1d1>] put_files_struct+0xb1/0xd0
[ 1049.404568] [<ffffffff8023f82f>] do_exit+0x18f/0x930
[ 1049.404576] [<ffffffff8020be03>] restore_args+0x0/0x30
[ 1049.404584] [<ffffffff80240006>] do_group_exit+0x36/0xa0
[ 1049.404592] [<ffffffff8020b7cb>] system_call_fastpath+0x16/0x1b
This can be easily triggered with 'opcontrol --shutdown'.
Simply move get_cpu_var() above unregister_die_notifier().
Signed-off-by: Andrea Righi <righi.andrea@gmail.com>
Acked-by: Robert Richter <robert.richter@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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The unlocked polling of the ComWaitInt bit in the IOMMU completion wait
path is racy. Protect it with the iommu lock.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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The iommu->need_sync flag must be set after the command is queued to
avoid race conditions.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
[IA64] kexec fails on systems with blocks of uncached memory
[IA64] Ski simulator doesn't need check_sal_cache_flush
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Currently a memory segment in memory map with attribute of EFI_MEMORY_UC
is denoted as "System RAM" in /proc/iomem, while memory of attribute
(EFI_MEMORY_WB|EFI_MEMORY_UC) is also labeled the same.
The kexec utility then includes uncached memory as part of vmcore. The
kdump kernel MCA'ed when it tries to save the vmcore to a disk. A normal
"cached" access may cause MCAs.
This patch would label memory with attribute of EFI_MEMORY_UC only as
"Uncached RAM" so that kexec would know not to include it in the vmcore.
I will submit a separate kexec-tools patch to the kexec list.
Signed-off-by: Jay Lan <jlan@sgi.com>
Acked-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Tony Luck <tony.luck@intel.com>
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Peter Chubb reported that commit 3463a93def55c309f3c0d0a8aaf216be3be42d64
(Update check_sal_cache_flush to use platform_send_ipi()) broke
Ski because it does not implement IPIs.
Tony Luck suggested we just #ifndef out the call (since the simulator
does not have the SAL bug that this code is attempting to detect and
workaround)
Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
sparc64: Fix missing devices due to PCI bridge test in of_create_pci_dev().
sparc64: Fix disappearing PCI devices on e3500.
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Just like in the arch/sparc64/kernel/of_device.c code fix commit
071d7f4c3b411beae08d27656e958070c43b78b4 ("sparc64: Fix SMP bootup
with CONFIG_STACK_DEBUG or ftrace.") we have to check the OF device
node name for "pci" instead of relying upon the 'device_type' property
being there on all PCI bridges.
Tested by Meelis Roos, and confirmed to make the PCI QFE devices
reappear on the E3500 system.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Based upon a bug report by Meelis Roos.
The OF device layer builds properties by matching bus types and
applying 'range' properties as appropriate, up to the root.
The match for "PCI" busses is looking at the 'device_type' property,
and this does work %99 of the time.
But on an E3500 system with a PCI QFE card, the DEC 21153 bridge
sitting above the QFE network interface devices has a 'name' of "pci",
but it completely lacks a 'device_type' property. So we don't match
it as a PCI bus, and subsequently we end up with no resource values at
all for the devices sitting under that DEC bridge.
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm
* 'kvm-updates/2.6.27' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm:
KVM: ia64: 'struct fdesc' build fix
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Commit 4611a77 ("[IA64] fix compile failure with non modular builds")
introduced struct fdesc into asm/elf.h, which duplicates KVM's definition.
Remove the latter to avoid the build error.
Signed-off-by: Jes Sorensen <jes@sgi.com>
Acked-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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The -ffunction-sections puts each text in .text.function_name section.
Without this patch, most functions are placed outside _text..._etext
area and it breaks show_stacktrace(), etc.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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If an interrupt happened between checking of NEED_RESCHED and WAIT
instruction, adjust EPC to restart from checking of NEED_RESCHED.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Use unsigned loads to avoid possible misscalculation of IP checksums. This
bug was instruced in f761106cd728bcf65b7fe161b10221ee00cf7132 (lmo) /
ed99e2bc1dc5dc54eb5a019f4975562dbef20103 (kernel.org).
[Original fix by Atsushi. Improved instruction scheduling and fix for
unaligned unsigned load by me -- Ralf]
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.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: completely disable NOPL on 32 bits
x86/paravirt: Remove duplicate paravirt_pagetable_setup_{start, done}()
xen: fix for xen guest with mem > 3.7G
x86: fix possible x86_64 and EFI regression
arch/x86/kernel/kdebugfs.c: introduce missing kfree
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Completely disable NOPL on 32 bits. It turns out that Microsoft
Virtual PC is so broken it can't even reliably *fail* in the presence
of NOPL.
This leaves the infrastructure in place but disables it
unconditionally.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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They were already called once in arch/x86/kernel/setup.c - we don't need to call them again.
fixes:
http://bugzilla.kernel.org/show_bug.cgi?id=11485
Signed-off-by: Alex Nixon <alex.nixon@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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PFN_PHYS() can truncate large addresses unless its passed a suitable
large type. This is fixed more generally in the patch series
introducing phys_addr_t, but we need a short-term fix to solve a
Xen regression reported by Roberto De Ioris.
Reported-by: Roberto De Ioris <roberto@unbit.it>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Russ Anderson reported a boot crash with EFI and latest mainline:
BIOS-e820: 00000000fffa0000 - 00000000fffac000 (reserved)
Pid: 0, comm: swapper Not tainted 2.6.27-rc5-00100-gec0c15a-dirty #5
Call Trace:
[<ffffffff80849195>] early_idt_handler+0x55/0x69
[<ffffffff80313e52>] __memcpy+0x12/0xa4
[<ffffffff80859015>] efi_init+0xce/0x932
[<ffffffff80869c83>] setup_early_serial8250_console+0x2d/0x36a
[<ffffffff80238688>] __insert_resource+0x18/0xc8
[<ffffffff8084f6de>] setup_arch+0x3a7/0x632
[<ffffffff808499ed>] start_kernel+0x91/0x367
[<ffffffff80849393>] x86_64_start_kernel+0xe3/0xe7
[<ffffffff808492b0>] x86_64_start_kernel+0x0/0xe7
RIP 0x10
Such a crash is possible if the CPU in this system is a 64-bit
processor which doesn't support NX (ie, old Intel P4 -based64-bit
processors).
Certainly, if we support such processors, then we should start with
_PAGE_NX initially clear in __supported_pte_flags, and then set it once
we've established that the processor does indeed support NX. That will
prevent early_ioremap - or anything else - from trying to set it.
The simple fix is to simply call check_efer() earlier.
Reported-by: Russ Anderson <rja@sgi.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Error handling code following a kmalloc should free the allocated data.
Note that at the point of the change, node has not yet been stored in d, so
it is not affected by the existing cleanup code.
The semantic match that finds the problem is as follows:
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@r exists@
local idexpression x;
statement S;
expression E;
identifier f,l;
position p1,p2;
expression *ptr != NULL;
@@
(
if ((x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...)) == NULL) S
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x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...);
...
if (x == NULL) S
)
<... when != x
when != if (...) { <+...x...+> }
x->f = E
...>
(
return \(0\|<+...x...+>\|ptr\);
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return@p2 ...;
)
@script:python@
p1 << r.p1;
p2 << r.p2;
@@
print "* file: %s kmalloc %s return %s" % (p1[0].file,p1[0].line,p2[0].line)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
Fix compile failure with non modular builds
powerpc: Holly board needs dtbImage target
powerpc: Fix interrupt values for DMA2 in MPC8610 HPCD device tree
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Commit deac93df26b20cf8438339b5935b5f5643bc30c9 ("lib: Correct printk
%pF to work on all architectures") broke the non modular builds by
moving an essential function into modules.c. Fix this by moving it
out again and into asm/sections.h as an inline. To do this, the
definition of struct ppc64_opd_entry has been lifted out of modules.c
and put in asm/elf.h where it belongs.
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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One of the changes in the bootwrapper makefile introduced the dtbImage
targets for boards that need a simple zImage with a DTB embedded in
them (595be948cce574ff2d5dde5d0426a636a4363c70, "[POWERPC]
bootwrapper: Build multiple cuImages"). When this was done, it broke
booting on the Holly board as the zImage.holly wrapper did not get the
DTB embedded properly.
This changes the target for the Holly board to a dtbImage so that the
wrapper includes the vmlinux, wrapper bits, and DTB.
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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For Freescale 8xxx devices that use an MPIC, the interrupt numbers in
the device tree must be 16 greater than the values documented in the
reference manual. In these chips, the MPIC is wired to use the first
16 numbers for external interrupts, but the documentation numbers
internal interrupts from 0.
In the MPC8610 HPCD device tree, the interrupt properties for the DMA
channels for DMA2 were not the adjusted values. This fixes that.
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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* master.kernel.org:/home/rmk/linux-2.6-arm:
[ARM] 5255/1: Update jornada ssp to remove build errors/warnings
[ARM] omap: back out 'internal_clock' support
[ARM] 5249/1: davinci: remove redundant check in davinci_psc_config()
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* Adds ssp functions into header so we don't get
"implicit declaration" error at builtime.
* Converts jornada_ssp_start/end functions into voids with
proper declarations (to avoid "prototype..." warning).
* Sorts include files in alphabetical order
* Minor comment changes
Signed-off-by: Kristoffer Ericson <Kristoffer.Ericson@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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The structures weren't ready for this change:
arch/arm/plat-omap/devices.c:320: error: 'struct omap_mmc_conf' has no member named 'internal_clock'
arch/arm/plat-omap/devices.c:326: error: implicit declaration of function 'omap_ctrl_readl'
arch/arm/plat-omap/devices.c:326: error: 'OMAP2_CONTROL_DEVCONF0' undeclared (first use in this function)
arch/arm/plat-omap/devices.c:328: error: implicit declaration of function 'omap_ctrl_writel'
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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id is unsigned, check is redundant.
Signed-off-by: Roel Kluin <roel.kluin@gmail.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/hskinnemoen/avr32-2.6
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6:
avr32: nmi_enter() without nmi_exit()
avr32: fix sys_sync_file_range() call convention
avr32: add generic_find_next_le_bit bit function
avr32: add .gitignore files
atstk1000: fix build breakage with BOARD_ATSTK100X_SW2_CUSTOM=y
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While updating the rcu code, I noticed that do_nmi() for AVR32 is odd:
There is an nmi_enter() call without an nmi_exit().
This can't be correct, it breaks rcu (at least the preempt version) and
lockdep.
[haavard.skinnemoen@atmel.com: fixed another case that returned directly]
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
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On AVR32, all parameters beyond the 5th are passed on the stack. System
calls don't use the stack -- they borrow a callee-saved register
instead. This means that syscalls that take 6 parameters must be called
through a stub that pushes the last parameter on the stack.
This patch adds a stub for sync_file_range syscall on AVR32
architecture. Tested with uClibc snapshot.
Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
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This patch implements the generic_find_next_le_bit bit function for AVR32
architecture. This is used by EXT4 file system.
Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
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Ignore Kernel binaries, kernel/vmlinux.lds and a log file.
Signed-off-by: Markus Heidelberg <markus.heidelberg@web.de>
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
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The #ifdef surrounding the code adding the mmc controller had a typo,
causing it to be compiled even when mmc was supposed to be disabled.
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
sparc64: Fix SMP bootup with CONFIG_STACK_DEBUG or ftrace.
sparc64: Fix OOPS in psycho_pcierr_intr_other().
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Based upon a report by Meelis Roos.
Any function call can try to access the current
thread register via the _mcount hooks when the kernel
is built with -pg (via ftrace or STACK_DEBUG).
That can't be setup properly very early on during
the bootup of other cpus for sun4u and some early
sun4v systems.
So add notrace markers to these specific functions, so
that _mcount doesn't get invoked too early.
Signed-off-by: David S. Miller <davem@davemloft.net>
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We no longer put the top-level PCI controller device into the
PCI layer device list. So pbm->pci_bus->self is always NULL.
Therefore, use direct PCI config space accesses to get at
the PCI controller's PCI_STATUS register.
Tested by Meelis Roos.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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* master.kernel.org:/home/rmk/linux-2.6-arm:
[ARM] Fix PCI_DMA_BUS_IS_PHYS for ARM
[ARM] 5247/1: tosa: SW_EAR_IN support
[ARM] 5246/1: tosa: add proper clock alias for tc6393xb clock
[ARM] 5245/1: Fix warning about unused return value in drivers/pcmcia
[ARM] OMAP: Fix MMC device data
imx serial: fix rts handling for non imx1 based hardware
imx serial: set RXD mux bit on i.MX27 and i.MX31
i.MX serial: fix init failure
pcm037: add rts/cts support for serial port
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PCI_DMA_BUS_IS_PHYS was defined to be zero, which meant we ignored
the DMA mask for IDE and SCSI transfers. This is wrong - we have
no DMA translation hardware. We want to obey DMA masks so that the
block layer performs bouncing itself.
Reported-by: Mikael Pettersson <mikpe@it.uu.se>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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git://pasiphae.extern.pengutronix.de/git/imx/linux-2.6.git
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We have rts/cts pins on the first serial port on the pcm037. Enable it.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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