Robert Richter [Thu, 22 Jan 2009 13:14:14 +0000 (14:14 +0100)]
cpumask: modifiy oprofile initialization
Delta patch to
f7df8ed164996cd2c6aca9674388be6ef78d8b37 for
tip/cpus4096.
Moved initialization to sync_start()/sync_stop(). No changes needed in
buffer_sync.h and oprof.c anymore.
Signed-off-by: Robert Richter <robert.richter@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Ingo Molnar [Tue, 20 Jan 2009 08:13:15 +0000 (09:13 +0100)]
x86, cpumask: fix tlb flush race
Impact: fix bootup crash
The cpumask is now passed in as a reference to mm->cpu_vm_mask, not on
the stack - hence it is not constant anymore during the TLB flush.
That way it could race and some static sanity checks would trigger:
[ 238.154287] ------------[ cut here ]------------
[ 238.156039] kernel BUG at arch/x86/kernel/tlb_32.c:130!
[ 238.156039] invalid opcode: 0000 [#1] SMP
[ 238.156039] last sysfs file: /sys/class/net/eth2/address
[ 238.156039] Modules linked in:
[ 238.156039]
[ 238.156039] Pid: 6493, comm: ifup-eth Not tainted (2.6.29-rc2-tip #1) P4DC6
[ 238.156039] EIP: 0060:[<
c0118f87>] EFLAGS:
00010202 CPU: 2
[ 238.156039] EIP is at native_flush_tlb_others+0x35/0x158
[ 238.156039] EAX:
c0ef972c EBX:
f6143301 ECX:
00000000 EDX:
00000000
[ 238.156039] ESI:
f61433a8 EDI:
f6143200 EBP:
f34f3e00 ESP:
f34f3df0
[ 238.156039] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
[ 238.156039] Process ifup-eth (pid: 6493, ti=
f34f2000 task=
f399ab00 task.ti=
f34f2000)
[ 238.156039] Stack:
[ 238.156039]
ffffffff f61433a8 ffffffff f6143200 f34f3e18 c0118e9c 00000000 f6143200
[ 238.156039]
f61433a8 f5bec738 f34f3e28 c0119435 c2b5b830 f6143200 f34f3e34 c01c2dc3
[ 238.156039]
bffd9000 f34f3e60 c01c3051 00000000 ffffffff f34f3e4c 00000000 00000071
[ 238.156039] Call Trace:
[ 238.156039] [<
c0118e9c>] ? flush_tlb_others+0x52/0x5b
[ 238.156039] [<
c0119435>] ? flush_tlb_mm+0x7f/0x8b
[ 238.156039] [<
c01c2dc3>] ? tlb_finish_mmu+0x2d/0x55
[ 238.156039] [<
c01c3051>] ? exit_mmap+0x124/0x170
[ 238.156039] [<
c013e965>] ? mmput+0x40/0xf5
[ 238.156039] [<
c01e4788>] ? flush_old_exec+0x640/0x94b
[ 238.156039] [<
c01ddb4e>] ? fsnotify_access+0x37/0x39
[ 238.156039] [<
c01e3435>] ? kernel_read+0x39/0x4b
[ 238.156039] [<
c021bc8a>] ? load_elf_binary+0x4a1/0x11bb
[ 238.156039] [<
c01c0af9>] ? might_fault+0x51/0x9c
[ 238.156039] [<
c010a2cc>] ? paravirt_read_tsc+0x20/0x4f
[ 238.156039] [<
c010a406>] ? native_sched_clock+0x5d/0x60
[ 238.156039] [<
c01e2fda>] ? search_binary_handler+0xab/0x2c4
[ 238.156039] [<
c021b7e9>] ? load_elf_binary+0x0/0x11bb
[ 238.156039] [<
c04ae9a5>] ? _raw_read_unlock+0x21/0x46
[ 238.156039] [<
c021b7e9>] ? load_elf_binary+0x0/0x11bb
[ 238.156039] [<
c01e2fe1>] ? search_binary_handler+0xb2/0x2c4
[ 238.156039] [<
c01e4076>] ? do_execve+0x21c/0x2ee
[ 238.156039] [<
c01029b7>] ? sys_execve+0x51/0x8c
[ 238.156039] [<
c0103eaf>] ? sysenter_do_call+0x12/0x43
Fix it by not assuming that the cpumask is constant.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Ingo Molnar [Mon, 19 Jan 2009 16:12:20 +0000 (17:12 +0100)]
Merge branch 'master' of git://git./linux/kernel/git/travis/linux-2.6-cpus4096-for-ingo into cpus4096
Mike Travis [Fri, 16 Jan 2009 23:58:13 +0000 (15:58 -0800)]
x86: put trigger in to detect mismatched apic versions.
Fire off one message if two apic's discovered with different
apic versions.
Signed-off-by: Mike Travis <travis@sgi.com>
Mike Travis [Fri, 16 Jan 2009 23:31:15 +0000 (15:31 -0800)]
cpufreq: use work_on_cpu in acpi-cpufreq.c for drv_read and drv_write
Impact: use new work_on_cpu function to reduce stack usage
Replace the saving of current->cpus_allowed and set_cpus_allowed_ptr() with
a work_on_cpu function for drv_read() and drv_write().
Basically converts do_drv_{read,write} into "work_on_cpu" functions that
are now called by drv_read and drv_write.
Note: This patch basically reverts
50c668d6 which reverted
7503bfba, now
that the work_on_cpu() function is more stable.
Signed-off-by: Mike Travis <travis@sgi.com>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Tested-by: Dieter Ries <clip2@gmx.de>
Tested-by: Maciej Rutecki <maciej.rutecki@gmail.com>
Cc: Dave Jones <davej@redhat.com>
Cc: <cpufreq@vger.kernel.org>
Rusty Russell [Fri, 16 Jan 2009 23:31:15 +0000 (15:31 -0800)]
work_on_cpu: Use our own workqueue.
Impact: remove potential clashes with generic kevent workqueue
Annoyingly, some places we want to use work_on_cpu are already in
workqueues. As per Ingo's suggestion, we create a different workqueue
for work_on_cpu.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Mike Travis <travis@sgi.com>
Rusty Russell [Fri, 16 Jan 2009 23:31:15 +0000 (15:31 -0800)]
work_on_cpu: don't try to get_online_cpus() in work_on_cpu.
Impact: remove potential circular lock dependency with cpu hotplug lock
This has caused more problems than it solved, with a pile of cpu
hotplug locking issues.
Followup patches will get_online_cpus() in callers that need it, but
if they don't do it they're no worse than before when they were using
set_cpus_allowed without locking.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Mike Travis <travis@sgi.com>
Mike Travis [Thu, 15 Jan 2009 20:09:44 +0000 (12:09 -0800)]
sched: fix warning on ia64
Andrew Morton reported this warning on ia64:
kernel/sched.c: In function `sd_init_NODE':
kernel/sched.c:7449: warning: comparison of distinct pointer types lacks a cast
Using the untyped min() function produces such warnings.
Fix: type the constant 32 as unsigned int to match typeof(num_online_cpus).
Reported-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Ingo Molnar [Thu, 15 Jan 2009 17:37:07 +0000 (18:37 +0100)]
Merge branch 'master' of ssh:///linux/kernel/git/travis/linux-2.6-cpus4096-for-ingo into cpus4096
Mike Travis [Thu, 15 Jan 2009 17:19:32 +0000 (09:19 -0800)]
x86: fix build warning when CONFIG_NUMA not defined.
Impact: fix build warning
The macro cpu_to_node did not reference it's argument, and instead
simply returned a 0. This causes a "unused variable" warning if
it's the only reference in a function (show_cache_disable).
Replace it with the more correct inline function.
Signed-off-by: Mike Travis <travis@sgi.com>
Ingo Molnar [Thu, 15 Jan 2009 14:46:08 +0000 (15:46 +0100)]
fix: crash: IP: __bitmap_intersects+0x48/0x73
-tip testing found this crash:
> [ 35.258515] calling acpi_cpufreq_init+0x0/0x127 @ 1
> [ 35.264127] BUG: unable to handle kernel NULL pointer dereference at (null)
> [ 35.267554] IP: [<
ffffffff80478092>] __bitmap_intersects+0x48/0x73
> [ 35.267554] PGD 0
> [ 35.267554] Oops: 0000 [#1] SMP DEBUG_PAGEALLOC
arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c is still broken: there's no
allocation of the variable mask, so we pass in an uninitialized cmd.mask
field to drv_read(), which then passes it to the scheduler which then
crashes ...
Switch it over to the much simpler constant-cpumask-pointers approach.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Ingo Molnar [Thu, 15 Jan 2009 14:45:31 +0000 (15:45 +0100)]
Merge branch 'linus' into cpus4096
Ingo Molnar [Thu, 15 Jan 2009 12:04:58 +0000 (13:04 +0100)]
x86: fix broken flush_tlb_others_ipi(), fix
Impact: cleanup
Use the proper type.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Mike Travis [Wed, 14 Jan 2009 23:43:54 +0000 (15:43 -0800)]
irq: update all arches for new irq_desc, fix
Impact: fix build errors
Since the SPARSE IRQS changes redefined how the kstat irqs are
organized, arch's must use the new accessor function:
kstat_incr_irqs_this_cpu(irq, DESC);
If CONFIG_SPARSE_IRQS is set, then DESC is a pointer to the
irq_desc which has a pointer to the kstat_irqs. If not, then
the .irqs field of struct kernel_stat is used instead.
Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Ingo Molnar [Wed, 14 Jan 2009 11:13:45 +0000 (12:13 +0100)]
Merge branch 'master' of ssh:///linux/kernel/git/travis/linux-2.6-cpus4096-for-ingo into cpus4096
Suresh Siddha [Wed, 14 Jan 2009 02:43:03 +0000 (18:43 -0800)]
x86: fix broken flush_tlb_others_ipi()
This commit broke flush_tlb_others_ipi() causing boot hangs on a
16 logical cpu system:
> commit
4595f9620cda8a1e973588e743cf5f8436dd20c6
> Author: Rusty Russell <rusty@rustcorp.com.au>
> Date: Sat Jan 10 21:58:09 2009 -0800
>
> x86: change flush_tlb_others to take a const struct cpumask
This change resulted in sending the invalidate tlb vector to the
sender itself causing the hang. flush_tlb_others_ipi() should exclude
the sender itself from the destination list.
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Linus Torvalds [Tue, 13 Jan 2009 22:53:16 +0000 (14:53 -0800)]
Merge branch 'x86-pat-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'x86-pat-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86 PAT: remove CPA WARN_ON for zero pte
x86 PAT: return compatible mapping to remap_pfn_range callers
x86 PAT: change track_pfn_vma_new to take pgprot_t pointer param
x86 PAT: consolidate old memtype new memtype check into a function
x86 PAT: remove PFNMAP type on track_pfn_vma_new() error
Linus Torvalds [Tue, 13 Jan 2009 22:52:35 +0000 (14:52 -0800)]
Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm:
TWL4030: fix clk API usage
[ARM] 5364/1: allow flush_ioremap_region() to be used from modules
[ARM] w90x900: fix build errors and warnings
[ARM] i.MX add missing include
[ARM] i.MX: fix breakage from commit
278892736e99330195c8ae5861bcd9d791bbf19e
[ARM] i.MX: remove LCDC controller register definitions from imx-regs.h
Bernd Schmidt [Tue, 13 Jan 2009 21:14:48 +0000 (22:14 +0100)]
Fix timeouts in sys_pselect7
Since we (Analog Devices) updated our Blackfin kernel to 2.6.28, we've
seen occasional 5-second hangs from telnet. telnetd calls select with a
NULL timeout, but with the new kernel, the system call occasionally
returns 0, which causes telnet to call sleep (5). This did not happen
with earlier kernels.
The code in sys_pselect7 looks a bit strange, in particular the variable
"to" is initialized to NULL, then changed if a non-null timeout was
passed in, but not used further. It needs to be passed to
core_sys_select instead of &end_time.
This bug was introduced by
8ff3e8e85fa6c312051134b3953e397feb639f51
("select: switch select() and poll() over to hrtimers").
Signed-off-by: Bernd Schmidt <bernd.schmidt@analog.com>
Reviewed-by: Ulrich Drepper <drepper@redhat.com>
Tested-by: Robin Getz <rgetz@blackfin.uclinux.org>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Helge Deller [Tue, 13 Jan 2009 21:51:07 +0000 (22:51 +0100)]
fix early_serial_setup() regression
Commit
b430428a188e8a434325e251d0704af4b88b4711 ("8250: Don't clobber
spinlocks.") introduced a regression on the parisc architecture, which
broke the handover to the serial port at boottime.
early_serial_setup() was changed to only copy a subset of the uart_port
fields, and sadly the "type" and "line" fields were forgotten and thus
the serial port was not initialized and could not be used for a
handover. This patch fixes this by copying the missing fields.
As this change to early_serial_setup() doesn't need an initialized
spinlock in the uart_port struct any longer, we can drop the spinlock
initialization in the superio driver.
Cc: David Daney <ddaney@caviumnetworks.com>
Cc: Tomaso Paoletti <tpaoletti@caviumnetworks.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Acked-by: Kyle McMartin <kyle@mcmartin.ca>
Cc: linux-parisc@vger.kernel.org
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Russell King [Sat, 10 Jan 2009 10:40:42 +0000 (10:40 +0000)]
TWL4030: fix clk API usage
Always pass a struct device if one is available; and there's really
no reason for the processor specific stuff in this file if only
people would follow the API usage properly by using the struct device.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
venkatesh.pallipadi@intel.com [Sat, 10 Jan 2009 00:13:14 +0000 (16:13 -0800)]
x86 PAT: remove CPA WARN_ON for zero pte
Impact: reduce scope of debug check - avoid warnings
The logic to find whether identity map exists or not using
high_memory or max_low_pfn_mapped/max_pfn_mapped are not complete
as the memory withing the range may not be mapped if there is a
unusable hole in e820.
Specifically, on my test system I started seeing these warnings with
tools like hwinfo, acpidump trying to map ACPI region.
[ 27.400018] ------------[ cut here ]------------
[ 27.400344] WARNING: at /home/venkip/src/linus/linux-2.6/arch/x86/mm/pageattr.c:560 __change_page_attr_set_clr+0xf3/0x8b8()
[ 27.400821] Hardware name: X7DB8
[ 27.401070] CPA: called for zero pte. vaddr =
ffff8800cff6a000 cpa->vaddr =
ffff8800cff6a000
[ 27.401569] Modules linked in:
[ 27.401882] Pid: 4913, comm: dmidecode Not tainted 2.6.28-05716-gfe0bdec #586
[ 27.402141] Call Trace:
[ 27.402488] [<
ffffffff80237c21>] warn_slowpath+0xd3/0x10f
[ 27.402749] [<
ffffffff80274ade>] ? find_get_page+0xb3/0xc9
[ 27.403028] [<
ffffffff80274a2b>] ? find_get_page+0x0/0xc9
[ 27.403333] [<
ffffffff80226425>] __change_page_attr_set_clr+0xf3/0x8b8
[ 27.403628] [<
ffffffff8028ec99>] ? __purge_vmap_area_lazy+0x192/0x1a1
[ 27.403883] [<
ffffffff8028eb52>] ? __purge_vmap_area_lazy+0x4b/0x1a1
[ 27.404172] [<
ffffffff80290268>] ? vm_unmap_aliases+0x1ab/0x1bb
[ 27.404512] [<
ffffffff80290105>] ? vm_unmap_aliases+0x48/0x1bb
[ 27.404766] [<
ffffffff80226d28>] change_page_attr_set_clr+0x13e/0x2e6
[ 27.405026] [<
ffffffff80698fa7>] ? _spin_unlock+0x26/0x2a
[ 27.405292] [<
ffffffff80227e6a>] ? reserve_memtype+0x19b/0x4e3
[ 27.405590] [<
ffffffff80226ffd>] _set_memory_wb+0x22/0x24
[ 27.405844] [<
ffffffff80225d28>] ioremap_change_attr+0x26/0x28
[ 27.406097] [<
ffffffff80228355>] reserve_pfn_range+0x1a3/0x235
[ 27.406427] [<
ffffffff80228430>] track_pfn_vma_new+0x49/0xb3
[ 27.406686] [<
ffffffff80286c46>] remap_pfn_range+0x94/0x32c
[ 27.406940] [<
ffffffff8022878d>] ? phys_mem_access_prot_allowed+0xb5/0x1a8
[ 27.407209] [<
ffffffff803e9bf4>] mmap_mem+0x75/0x9d
[ 27.407523] [<
ffffffff8028b3b4>] mmap_region+0x2cf/0x53e
[ 27.407776] [<
ffffffff8028b8cc>] do_mmap_pgoff+0x2a9/0x30d
[ 27.408034] [<
ffffffff8020f4a4>] sys_mmap+0x92/0xce
[ 27.408339] [<
ffffffff8020b65b>] system_call_fastpath+0x16/0x1b
[ 27.408614] ---[ end trace
4b16ad70c09a602d ]---
[ 27.408871] dmidecode:4913 reserve_pfn_range ioremap_change_attr failed write-back for
cff6a000-
cff6b000
This is wih track_pfn_vma_new trying to keep identity map in sync.
The address
cff6a000 is the ACPI region according to e820.
[ 0.000000] BIOS-provided physical RAM map:
[ 0.000000] BIOS-e820:
0000000000000000 -
000000000009c000 (usable)
[ 0.000000] BIOS-e820:
000000000009c000 -
00000000000a0000 (reserved)
[ 0.000000] BIOS-e820:
00000000000cc000 -
00000000000d0000 (reserved)
[ 0.000000] BIOS-e820:
00000000000e4000 -
0000000000100000 (reserved)
[ 0.000000] BIOS-e820:
0000000000100000 -
00000000cff60000 (usable)
[ 0.000000] BIOS-e820:
00000000cff60000 -
00000000cff69000 (ACPI data)
[ 0.000000] BIOS-e820:
00000000cff69000 -
00000000cff80000 (ACPI NVS)
[ 0.000000] BIOS-e820:
00000000cff80000 -
00000000d0000000 (reserved)
[ 0.000000] BIOS-e820:
00000000e0000000 -
00000000f0000000 (reserved)
[ 0.000000] BIOS-e820:
00000000fec00000 -
00000000fec10000 (reserved)
[ 0.000000] BIOS-e820:
00000000fee00000 -
00000000fee01000 (reserved)
[ 0.000000] BIOS-e820:
00000000ff000000 -
0000000100000000 (reserved)
[ 0.000000] BIOS-e820:
0000000100000000 -
0000000230000000 (usable)
And is not mapped as per init_memory_mapping.
[ 0.000000] init_memory_mapping:
0000000000000000-
00000000cff60000
[ 0.000000] init_memory_mapping:
0000000100000000-
0000000230000000
We can add logic to check for this. But, there can also be other holes in
identity map when we have 1GB of aligned reserved space in e820.
This patch handles it by removing the WARN_ON and returning a specific
error value (EFAULT) to indicate that the address does not have any
identity mapping.
The code that tries to keep identity map in sync can ignore
this error, with other callers of cpa still getting error here.
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
venkatesh.pallipadi@intel.com [Sat, 10 Jan 2009 00:13:12 +0000 (16:13 -0800)]
x86 PAT: return compatible mapping to remap_pfn_range callers
Impact: avoid warning message, potentially solve 3D performance regression
Change x86 PAT code to return compatible memtype if the exact memtype that
was requested in remap_pfn_rage and friends is not available due to some
conflict.
This is done by returning the compatible type in pgprot parameter of
track_pfn_vma_new(), and the caller uses that memtype for page table.
Note that track_pfn_vma_copy() which is basically called during fork gets the
prot from existing page table and should not have any conflict. Hence we use
strict memtype check there and do not allow compatible memtypes.
This patch fixes the bug reported here:
http://marc.info/?l=linux-kernel&m=
123108883716357&w=2
Specifically the error message:
X:5010 map pfn expected mapping type write-back for
d0000000-
d0101000,
got write-combining
Should go away.
Reported-and-bisected-by: Kevin Winchester <kjwinchester@gmail.com>
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
venkatesh.pallipadi@intel.com [Sat, 10 Jan 2009 00:13:11 +0000 (16:13 -0800)]
x86 PAT: change track_pfn_vma_new to take pgprot_t pointer param
Impact: cleanup
Change the protection parameter for track_pfn_vma_new() into a pgprot_t pointer.
Subsequent patch changes the x86 PAT handling to return a compatible
memtype in pgprot_t, if what was requested cannot be allowed due to conflicts.
No fuctionality change in this patch.
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
venkatesh.pallipadi@intel.com [Sat, 10 Jan 2009 00:13:10 +0000 (16:13 -0800)]
x86 PAT: consolidate old memtype new memtype check into a function
Impact: cleanup
Move the new memtype old memtype allowed check to header so that is can be
shared by other users. Subsequent patch uses this in pat.c in remap_pfn_range()
code path. No functionality change in this patch.
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
venkatesh.pallipadi@intel.com [Sat, 10 Jan 2009 00:13:09 +0000 (16:13 -0800)]
x86 PAT: remove PFNMAP type on track_pfn_vma_new() error
Impact: fix (harmless) double-free of memtype entries and avoid warning
On track_pfn_vma_new() failure, reset the vm_flags so that there will be
no second cleanup happening when upper level routines call unmap_vmas().
This patch fixes part of the bug reported here:
http://marc.info/?l=linux-kernel&m=
123108883716357&w=2
Specifically the error message:
X:5010 freeing invalid memtype
d0000000-
d0101000
Is due to multiple frees on error path, will not happen with the patch below.
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Linus Torvalds [Tue, 13 Jan 2009 17:03:02 +0000 (09:03 -0800)]
Merge branch 'x86-fixes-for-linus' of git://git./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:
Revert "i386: add TRACE_IRQS_OFF for the nmi"
Linus Torvalds [Tue, 13 Jan 2009 17:02:21 +0000 (09:02 -0800)]
Merge branch 'core-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
smp_call_function_single(): be slightly less stupid, fix #2
lockdep, mm: fix might_fault() annotation
Linus Torvalds [Tue, 13 Jan 2009 16:19:42 +0000 (08:19 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/roland/infiniband
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
IB/iser: Add dependency on INFINIBAND_ADDR_TRANS
IPoIB: Do not join broadcast group if interface is brought down
RDMA/nes: Fix for NIPQUAD removal
IPoIB: Fix loss of connectivity after bonding failover on both sides
IB/mlx4: Don't register IB device for adapters with no IB ports
mlx4_core: Fix warning from min()
IB/ehca: spin_lock_irqsave() takes an unsigned long
Linus Torvalds [Tue, 13 Jan 2009 16:17:41 +0000 (08:17 -0800)]
Merge branch 'upstream-linus' of git://git./linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
pata_it821x: Update RDC UDMA handling
ata: fix wrong WARN_ON_ONCE
Dirk Hohndel [Sun, 11 Jan 2009 15:33:51 +0000 (15:33 +0000)]
Prevent oops at boot with VT-d
With some broken BIOSs when VT-d is enabled, the data structures are
filled incorrectly. This can cause a NULL pointer dereference in very
early boot.
Signed-off-by: Dirk Hohndel <hohndel@linux.intel.com>
Acked-by: Yu Zhao <yu.zhao@intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Alan Cox [Sun, 11 Jan 2009 19:51:08 +0000 (19:51 +0000)]
pata_it821x: Update RDC UDMA handling
The UDMA affliction is apparently specific to revision 0x11. Keeps us in sync
with drivers/ide current.
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Christian Borntraeger [Tue, 13 Jan 2009 09:38:36 +0000 (10:38 +0100)]
ata: fix wrong WARN_ON_ONCE
This patch fixes a wrong WARN_ON that was triggered by 32bit PIO support:
WARNING: at drivers/ata/libata-sff.c:1017 ata_sff_hsm_move+0x45e/0x750()
__atapi_pio_bytes simply doesnt know enough to decide if there is a bug.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Roland Dreier [Tue, 13 Jan 2009 03:37:31 +0000 (19:37 -0800)]
Merge branches 'ehca', 'ipoib', 'iser', 'mlx4' and 'nes' into for-next
Randy Dunlap [Tue, 13 Jan 2009 03:30:41 +0000 (19:30 -0800)]
IB/iser: Add dependency on INFINIBAND_ADDR_TRANS
Fix ib_iser build to depend on INFINIBAND_ADDR_TRANS; if INET=y but
IPV6=n, then the RDMA CM is not built but INFINIBAND_ISER can be
enabled, leading to:
ERROR: "rdma_destroy_id" [drivers/infiniband/ulp/iser/ib_iser.ko] undefined!
ERROR: "rdma_connect" [drivers/infiniband/ulp/iser/ib_iser.ko] undefined!
ERROR: "rdma_destroy_qp" [drivers/infiniband/ulp/iser/ib_iser.ko] undefined!
ERROR: "rdma_create_id" [drivers/infiniband/ulp/iser/ib_iser.ko] undefined!
ERROR: "rdma_create_qp" [drivers/infiniband/ulp/iser/ib_iser.ko] undefined!
ERROR: "rdma_resolve_route" [drivers/infiniband/ulp/iser/ib_iser.ko] undefined!
ERROR: "rdma_disconnect" [drivers/infiniband/ulp/iser/ib_iser.ko] undefined!
ERROR: "rdma_resolve_addr" [drivers/infiniband/ulp/iser/ib_iser.ko] undefined!
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Yossi Etigin [Tue, 13 Jan 2009 03:28:42 +0000 (19:28 -0800)]
IPoIB: Do not join broadcast group if interface is brought down
Because the ipoib_workqueue is not flushed when ipoib interface is
brought down, ipoib_mcast_join() may trigger a join to the broadcast
group after priv->broadcast was set to NULL (during cleanup). This
will cause the system to be a member of the broadcast group when
interface is down. As a side effect, this breaks the optimization of
setting the Q_key only when joining the broadcast group.
Signed-off-by: Yossi Etigin <yosefe@voltaire.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Yinghai Lu [Tue, 13 Jan 2009 01:39:24 +0000 (17:39 -0800)]
x86: arch_probe_nr_irqs
Impact: save RAM with large NR_CPUS, get smaller nr_irqs
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Mike Travis <travis@sgi.com>
Arjan van de Ven [Sun, 11 Jan 2009 15:35:01 +0000 (15:35 +0000)]
async: fix __lowest_in_progress()
At 37000 feet somewhere near Greenland I woke up from a half-sleep with the
realisation that __lowest_in_progress() is buggy. After landing I checked
and there were indeed 2 problems with it; this patch fixes both:
* The order of the list checks was wrong
* The locking was not correct.
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Arjan van de Ven [Sun, 11 Jan 2009 15:03:23 +0000 (15:03 +0000)]
script: improve markup_oops.pl to also decode oopses in modules
There has been some light flamewar on lkml about decoding oopses
in modules (as part of the crashdump flamewar).
Now this isn't rocket science, just the markup_oops.pl script
cheaped out and didn't handle modules. But really; a flamewar
all about that?? What happened to C++ in the kernel or reading
files from inside the kernel?
This patch adds module support to markup_oops.pl; it's not the
most pretty perl but it works for my testcases...
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Chris Adams [Sun, 11 Jan 2009 19:49:11 +0000 (19:49 +0000)]
ti_usb_3410_5052: add Multi-Tech firmware
Add the Multi-Tech cellular modem firmware to the TI USB serial driver.
This firmware was extracted from:
ftp://ftp.multitech.com/wireless/wireless_linux.zip
Firmware licence: "all firmware components are redistributable in binary
form" per support@multitech.com
Copyright (C) 2005 Multi-Tech Systems, Inc.
Signed-off-by: Chris Adams <cmadams@hiwaay.net>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Chris Adams [Sun, 11 Jan 2009 19:49:00 +0000 (19:49 +0000)]
ti_usb_3410_5052: add Multi-Tech modem support
Add Multi-Tech cellular modem support to the ti_usb_3410_5052 driver.
Signed-off-by: Chris Adams <cmadams@hiwaay.net>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Chris Adams [Sun, 11 Jan 2009 19:48:53 +0000 (19:48 +0000)]
ti_usb_3410_5052: support alternate firmware
The TI USB serial driver supports specifying alternate vendor and
product IDs (since the chips can and are used in devices under other
vendor/product IDs). However, the alternate IDs were not loaded in the
combined product table. This patch also adds support for loading
alternate firmware for alternate vendor/product IDs.
Signed-off-by: Chris Adams <cmadams@hiwaay.net>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Alan Cox [Sun, 11 Jan 2009 19:48:41 +0000 (19:48 +0000)]
usb-serial: remove NULL check
Julia Lawell found a case where a NULL check was misplaced in the
usb-serial code. However as the object in question cannot be NULL the
check can simply be removed.
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Alan Cox [Sun, 11 Jan 2009 19:48:34 +0000 (19:48 +0000)]
neo: Remove a bogus NULL check
Julia Lawall found an un-needed check in the neo driver. Her patch moves
the check to cover the code dereferencing it, however it cannot be NULL
anyway so remove the NULL check instead.
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Alan Cox [Sun, 11 Jan 2009 19:46:49 +0000 (19:46 +0000)]
pty: Fix documentation
The pty changes and updates for window sizing forgot to correct the
kerneldoc
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Tue, 13 Jan 2009 00:29:00 +0000 (16:29 -0800)]
Merge branch 'sched-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
kernel/sched.c: add missing forward declaration for 'double_rq_lock'
sched: partly revert "sched debug: remove NULL checking in print_cfs_rt_rq()"
cpumask: fix CONFIG_NUMA=y sched.c
Linus Torvalds [Tue, 13 Jan 2009 00:28:26 +0000 (16:28 -0800)]
Merge branch 'core-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
sparc64: Fix cpumask related build failure
smp_call_function_single(): be slightly less stupid, fix
smp_call_function_single(): be slightly less stupid
rcu: fix bug in rcutorture system-shutdown code
Linus Torvalds [Tue, 13 Jan 2009 00:27:24 +0000 (16:27 -0800)]
Merge branch 'for-next' of git://git.o-hand.com/linux-mfd
* 'for-next' of git://git.o-hand.com/linux-mfd:
mfd: Fix twl4030-core build
mfd: Ensure sm501 GPIO pin mode is GPIO when configured
mfd: dm355 evm MMC/SD card detection
regulator: PCF50633 pmic driver
input: PCF50633 input driver
power_supply: PCF50633 battery charger driver
rtc: PCF50633 rtc driver
mfd: PCF50633 gpio support
mfd: PCF50633 adc driver
mfd: PCF50633 core driver
Linus Torvalds [Tue, 13 Jan 2009 00:25:35 +0000 (16:25 -0800)]
Merge branch 'upstream' of git://ftp.linux-mips.org/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (37 commits)
MIPS: Only write c0_framemask on CPUs which have this register.
MIPS: Alchemy: new userspace suspend interface for development boards.
MIPS: Alchemy: dbdma suspend/resume support.
MIPS: Alchemy: Fix up PM code on Au1550/Au1200
MIPS: Alchemy: move calc_clock function.
MIPS: Alchemy: RTC counter clocksource / clockevent support.
MIPS: make cp0 counter clocksource/event usable as fallback.
MIPS: Alchemy: remove cpu_table.
MIPS: Alchemy: remove get/set_au1x00_lcd_clock().
MIPS: Print irq handler description
MIPS: Alchemy: pb1200: update CPLD cascade irq handler.
MIPS: Alchemy: update core interrupt code.
MIPS: Alchemy: move commandline mangling out of common code
MIPS: Alchemy: devboards: consolidate files
MIPS: Alchemy: Move development board code to common subdirectory
MIPS: Add Cavium OCTEON to arch/mips/Kconfig
MIPS: Add defconfig for Cavium OCTEON.
MIPS: Adjust the dma-common.c platform hooks.
MIPS: Add Cavium OCTEON slot into proper tlb category.
MIPS: Compute branch returns for Cavium OCTEON specific branch instructions.
...
Linus Torvalds [Tue, 13 Jan 2009 00:22:31 +0000 (16:22 -0800)]
Merge git://git./linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (37 commits)
ucc_geth: use correct UCCE macros
net_dma: acquire/release dma channels on ifup/ifdown
cxgb3: Keep LRO off if disabled when interface is down
sfc: SFT9001: Fix condition for LNPGA power-off
dccp ccid-3: Fix RFC reference
smsc911x: register irq with device name, not driver name
smsc911x: fix smsc911x_reg_read compiler warning
forcedeth: napi schedule lock fix
net: fix section mismatch warnings in dccp/ccids/lib/tfrc.c
forcedeth: remove mgmt unit for mcp79 chipset
qlge: Remove dynamic alloc of rx ring control blocks.
qlge: Fix schedule while atomic issue.
qlge: Remove support for device ID 8000.
qlge: Get rid of split addresses in hardware control blocks.
qlge: Get rid of volatile usage for shadow register.
forcedeth: version bump and copyright
forcedeth: xmit lock fix
netdev: missing validate_address hooks
netdev: add missing set_mac_address hook
netdev: gianfar: add MII ioctl handler
...
Linus Torvalds [Tue, 13 Jan 2009 00:22:12 +0000 (16:22 -0800)]
Merge git://git./linux/kernel/git/davem/sparc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
sparc: Fix asm/signal.h for 32-bit.
sparc: Eliminate PROMLIB_INTERNAL as it does nothing
sparc: Kill exports of prom internal functions
sparc64: move EXPORT_SYMBOL to the symbols definition
sparc: move EXPORT_SYMBOL to the symbols definition
sparc: Create a new file lib/ksyms.c and add export of all symbols defined in assembler in lib/ to this file.
sparc: Most unaligned_64.c tweaks for branch tracer warnings.
sparc: Fix sun4d_irq.c build.
sparc: Update 32-bit defconfig.
sparc64: fix warnings in psycho_common after ull conversion
Linus Torvalds [Mon, 12 Jan 2009 23:57:34 +0000 (15:57 -0800)]
Merge branch 'for_2.6.29' of git://git./linux/kernel/git/kkeil/ISDN-2.6
* 'for_2.6.29' of git://git.kernel.org/pub/scm/linux/kernel/git/kkeil/ISDN-2.6:
Fix small typo
misdn: indentation and braces disagree - add braces
misdn: one handmade ARRAY_SIZE converted
drivers/isdn/hardware/mISDN: move a dereference below a NULL test
indentation & braces disagree - add braces
Make parameter debug writable
BUGFIX: used NULL pointer at ioctl(sk,IMGETDEVINFO,&devinfo) when devinfo.id not registered
Linus Torvalds [Mon, 12 Jan 2009 23:56:33 +0000 (15:56 -0800)]
Merge git://git./linux/kernel/git/wim/linux-2.6-watchdog
* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog:
[WATCHDOG] Pika Warp appliance watchdog timer
[WATCHDOG] Enable watchdog timer on GE Fanuc's SBC610
[WATCHDOG] Basic support for GE Fanuc's FPGA based watchdog timer
[WATCHDOG] wm8350: Fix section annotations
Linus Torvalds [Mon, 12 Jan 2009 23:55:19 +0000 (15:55 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/geert/linux-m68k
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: (30 commits)
m68k: Fix --build-id breakage for sun3
m68k: Wire up sys_restart_syscall
fbdev: Kill Atari vblank cursor blinking
m68k: zorro - Use %pR to print resources
m68k: dio - Kill resource_size_t format warnings
m68k: dmasound - Kill warn_unused_result warnings
m68k: zorro - Kill warn_unused_result warnings
m68k: dio - Kill warn_unused_result warnings
m68k: atafb - Kill warn_unused_result warnings
m68k: amiserial - Kill warn_unused_result warnings
m68k: ser_a2232 - Kill warn_unused_result warnings
m68k: vme_scc - Kill warn_unused_result warnings
m68k: sun3 core - Kill warn_unused_result warnings
m68k: mvme147 core - Kill warn_unused_result warnings
m68k: mac core - Kill warn_unused_result warnings
m68k: hp300 core - Kill warn_unused_result warnings
m68k: atari core - Kill warn_unused_result warnings
m68k: apollo core - Kill warn_unused_result warnings
m68k: amiga core - Kill warn_unused_result warnings
m68k: Kill several external declarations in source files
...
Linus Torvalds [Mon, 12 Jan 2009 23:54:27 +0000 (15:54 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/teigland/dlm
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm:
dlm: change rsbtbl rwlock to spinlock
dlm: fix seq_file usage in debugfs lock dump
Linus Torvalds [Mon, 12 Jan 2009 23:53:58 +0000 (15:53 -0800)]
Merge branch 'x86-fixes-for-linus' of git://git./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:
Revert "cpumask: use work_on_cpu in acpi-cpufreq.c for drv_read and drv_write"
x86: fix apic.c build error on latest git
x86: fix mpparse.c build error on latest git
x86: avoid theoretical vmalloc fault loop
x86, mtrr: fix types used in userspace exported header
Linus Torvalds [Mon, 12 Jan 2009 23:53:02 +0000 (15:53 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
ALSA: hda - Use own workqueue
ALSA: hda - add support for Intel DX58SO board
ASoC: TWL4030: Module unloading fix
ALSA: hda - create hda_codec.control_mutex for kcontrol->private_value
ALSA: caiaq - Version 1.3.10
ALSA: hda - Add quirk for Dell Inspiron Mini9
ALSA: caiaq - Fix Oops with MIDI
ASoC: TWL4030: Change the soc_value_enum back to soc_enum
ASoC: Merge the soc_value_enum to soc_enum struct
ALSA: hda - Add quirks for Acer Aspire 5930G and 6930G
ALSA: hda - Add codec ID for MCP73 HDMI
ALSA: hda - Fix typos for AD1882 codecs
ALSA: hda - Add quirk for HP 2230s
Mike Travis [Mon, 12 Jan 2009 23:27:13 +0000 (15:27 -0800)]
irq: update all arches for new irq_desc
Impact: cleanup, update to new cpumask API
Irq_desc.affinity and irq_desc.pending_mask are now cpumask_var_t's
so access to them should be using the new cpumask API.
Signed-off-by: Mike Travis <travis@sgi.com>
Sean MacLennan [Wed, 24 Sep 2008 00:26:26 +0000 (20:26 -0400)]
[WATCHDOG] Pika Warp appliance watchdog timer
The FPGA based watchdog timer used by the Pika Warp appliance.
Signed-off-by: Sean MacLennan <smaclennan@pikatech.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Martyn Welch [Mon, 10 Nov 2008 12:31:33 +0000 (12:31 +0000)]
[WATCHDOG] Enable watchdog timer on GE Fanuc's SBC610
Support for the FPGA based watchdog timer on GE Fanuc's SBC610.
This patch enables one of the watchdog timers found on the SBC610. There are
two identical watchdog timers at different offsets in the above mentioned
boards, however the current driver is only capable of supporting one of them.
The watchdog timers are also capable of generating interrupts at a
user-configurable threshold, though support for this operation is currently
not supported by the driver.
Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Martyn Welch [Mon, 10 Nov 2008 12:31:26 +0000 (12:31 +0000)]
[WATCHDOG] Basic support for GE Fanuc's FPGA based watchdog timer
GE Fanuc SBC610
Support for the FPGA based watchdog timer as found on GE Fanuc's SBC310,
SBC610 and PPC9A Single Board Computers.
This patch adds support for the watchdog timer found in one of the devices
FPGAs. There are two identical watchdog timers at different offsets in the
above mentioned boards, this driver is capable of supporting one of them.
The watchdog timers are also capable of generating interrupts at a
user-configurable threshold, though support for this operation is currently
not supported by the driver.
Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Mark Brown [Thu, 8 Jan 2009 12:04:27 +0000 (12:04 +0000)]
[WATCHDOG] wm8350: Fix section annotations
The probe and remove functions were incorrectly annotated, with the
misannotation of the remove function causing build failures when built
in.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Al Viro [Mon, 5 Jan 2009 17:28:10 +0000 (17:28 +0000)]
m68k: Fix --build-id breakage for sun3
Counterpart of commit
08a3db94f2a36c28278922732bc281c1722ceb18 ("m68k: Add
NOTES to init data so its discarded at boot") for sun3 build.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Andreas Schwab [Mon, 29 Dec 2008 18:34:57 +0000 (19:34 +0100)]
m68k: Wire up sys_restart_syscall
Make restart blocks working, required for proper syscall restarting.
Signed-off-by: Andreas Schwab <schwab@suse.de>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Geert Uytterhoeven [Tue, 30 Dec 2008 13:11:23 +0000 (14:11 +0100)]
fbdev: Kill Atari vblank cursor blinking
Kill the last remaining vblank cursor blinking user
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Geert Uytterhoeven [Tue, 30 Dec 2008 13:23:35 +0000 (14:23 +0100)]
m68k: zorro - Use %pR to print resources
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Geert Uytterhoeven [Tue, 30 Dec 2008 13:22:01 +0000 (14:22 +0100)]
m68k: dio - Kill resource_size_t format warnings
warning: format '%08lx' expects type 'long unsigned int', but argument 3 has
type 'resource_size_t'
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Geert Uytterhoeven [Tue, 30 Dec 2008 13:25:31 +0000 (14:25 +0100)]
m68k: dmasound - Kill warn_unused_result warnings
warning: ignoring return value of 'request_irq', declared with attribute
warn_unused_result
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Geert Uytterhoeven [Tue, 30 Dec 2008 13:21:19 +0000 (14:21 +0100)]
m68k: zorro - Kill warn_unused_result warnings
warning: ignoring return value of 'device_register', declared with attribute
warn_unused_result
warning: ignoring return value of 'device_create_file', declared with
attribute warn_unused_result
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Geert Uytterhoeven [Tue, 30 Dec 2008 13:16:41 +0000 (14:16 +0100)]
m68k: dio - Kill warn_unused_result warnings
warning: ignoring return value of 'device_register', declared with attribute
warn_unused_result
warning: ignoring return value of 'device_create_file', declared with
attribute warn_unused_result
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Geert Uytterhoeven [Tue, 30 Dec 2008 13:10:11 +0000 (14:10 +0100)]
m68k: atafb - Kill warn_unused_result warnings
warning: ignoring return value of 'request_irq', declared with attribute
warn_unused_result
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Geert Uytterhoeven [Tue, 30 Dec 2008 13:13:41 +0000 (14:13 +0100)]
m68k: amiserial - Kill warn_unused_result warnings
warning: ignoring return value of 'request_irq', declared with attribute
warn_unused_result
and clean up the error path handling.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Geert Uytterhoeven [Tue, 30 Dec 2008 13:08:21 +0000 (14:08 +0100)]
m68k: ser_a2232 - Kill warn_unused_result warnings
warning: ignoring return value of 'request_irq', declared with attribute
warn_unused_result
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Geert Uytterhoeven [Tue, 30 Dec 2008 13:07:07 +0000 (14:07 +0100)]
m68k: vme_scc - Kill warn_unused_result warnings
warning: ignoring return value of 'request_irq', declared with attribute
warn_unused_result
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Geert Uytterhoeven [Tue, 30 Dec 2008 13:05:24 +0000 (14:05 +0100)]
m68k: sun3 core - Kill warn_unused_result warnings
warning: ignoring return value of 'request_irq', declared with attribute
warn_unused_result
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Geert Uytterhoeven [Tue, 30 Dec 2008 13:03:28 +0000 (14:03 +0100)]
m68k: mvme147 core - Kill warn_unused_result warnings
warning: ignoring return value of 'request_irq', declared with attribute
warn_unused_result
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Geert Uytterhoeven [Tue, 30 Dec 2008 13:02:27 +0000 (14:02 +0100)]
m68k: mac core - Kill warn_unused_result warnings
warning: ignoring return value of 'request_irq', declared with attribute
warn_unused_result
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Geert Uytterhoeven [Tue, 30 Dec 2008 13:02:06 +0000 (14:02 +0100)]
m68k: hp300 core - Kill warn_unused_result warnings
warning: ignoring return value of 'request_irq', declared with attribute
warn_unused_result
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Geert Uytterhoeven [Tue, 30 Dec 2008 13:01:32 +0000 (14:01 +0100)]
m68k: atari core - Kill warn_unused_result warnings
warning: ignoring return value of 'request_irq', declared with attribute
warn_unused_result
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Geert Uytterhoeven [Tue, 30 Dec 2008 13:01:07 +0000 (14:01 +0100)]
m68k: apollo core - Kill warn_unused_result warnings
warning: ignoring return value of 'request_irq', declared with attribute
warn_unused_result
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Geert Uytterhoeven [Tue, 30 Dec 2008 13:00:34 +0000 (14:00 +0100)]
m68k: amiga core - Kill warn_unused_result warnings
warning: ignoring return value of 'request_irq', declared with attribute
warn_unused_result
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Geert Uytterhoeven [Sun, 21 Dec 2008 11:03:37 +0000 (12:03 +0100)]
m68k: Kill several external declarations in source files
- Replace external declarations by proper includes where availiable.
The accesses to some symbols had to be modified, as before they were
declared using e.g. "extern int _end", while asm-generic/sections.h uses
e.g. "extern char _end[]"
- Remove unused or superfluous external declarations
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Andreas Bombe [Wed, 10 Dec 2008 01:02:19 +0000 (02:02 +0100)]
m68k: amiflop - Get rid of sleep_on calls
Apart from sleep_on() calls that could be easily converted to
wait_event() and completion calls amiflop also used a flag in ms_delay()
and ms_isr() as a custom mutex for ms_delay() without a need for
explicit unlocking. I converted that to a standard mutex.
The replacement for the unconditional sleep_on() in fd_motor_on() is a
complete_all() together with a INIT_COMPLETION() before the mod_timer()
call. It appears to me that fd_motor_on() might be called concurrently
and fd_select() does not guarantee mutual exclusivity in the case the
same drive gets selected again.
Signed-off-by: Andreas Bombe <aeb@debian.org>
Acked-by: Jörg Dorchain <joerg@dorchain.net>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Kars de Jong [Fri, 21 Nov 2008 12:18:12 +0000 (13:18 +0100)]
m68k: zorro - Add devlist.h and gen-devlist to .gitignore
drivers/zorro/.gitignore: Added devlist.h and gen-devlist to .gitignore file
because they shouldn't be tracked.
Signed-off-by: Kars de Jong <jongk@linux-m68k.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Kars de Jong [Thu, 20 Nov 2008 13:28:30 +0000 (14:28 +0100)]
m68k: Add vmlinux.lds to .gitignore
arch/m68k/kernel/.gitignore: Added vmlinux.lds to .gitignore file because it
shouldn't be tracked.
Signed-off-by: Kars de Jong <jongk@linux-m68k.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Geert Uytterhoeven [Sun, 21 Dec 2008 14:48:13 +0000 (15:48 +0100)]
fbdev: c2p - Rename c2p to c2p_planar
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Geert Uytterhoeven [Sun, 21 Dec 2008 14:48:12 +0000 (15:48 +0100)]
fbdev: c2p/atafb - Add support for Atari interleaved bitplanes
The c2p() for normal bitplanes is not suitable for interleaved bitplanes with
2 bytes of interleave, causing a garbled penguin logo. Add c2p_iplan2().
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Geert Uytterhoeven [Sun, 4 Jan 2009 10:58:20 +0000 (11:58 +0100)]
fbdev: c2p - Extract common c2p core to c2p_core.h
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Geert Uytterhoeven [Sun, 4 Jan 2009 10:43:00 +0000 (11:43 +0100)]
fbdev: c2p - Cleanups
- Improve comments and naming
- Convert macros to static inline functions
- Remove superfluous `break' after `return'
- Make sure we get a build-time error (undefined reference to
'c2p_unsupported') in case of future misuse
- Replace `unsigned long' by `u32' in comp(), as that's what all callers use
- Use {get,put}_unaligned_be32() in store_planar{,_masked}()
- Use void * for arbitrary pointers
- Use a union to represent pixels/words, to avoid casts
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Geert Uytterhoeven [Sun, 4 Jan 2009 10:42:16 +0000 (11:42 +0100)]
fbdev: c2p - Correct indentation
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Geert Uytterhoeven [Tue, 18 Nov 2008 20:13:01 +0000 (21:13 +0100)]
fbdev: atafb - Fix 16 bpp console
- 16 bpp must use the cfb_*() ops
- 16 bpp needs to set up info->pseudo_palette[] (was fbcon_cfb16_cmap[] in
2.4.x)
- Kill commented out 2.4.x fbcon remnants
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Geert Uytterhoeven [Tue, 18 Nov 2008 20:13:01 +0000 (21:13 +0100)]
fbdev: atafb - Fix line length handling
- Make sure par->next_line is always set (this was done for Falcon only),
as all the text console drawing operations need a valid par->next_line,
- Make sure fix->line_length is always set, as some userspace applications
need it because they don't have fallback code for the case where it's zero.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Ingo Molnar [Mon, 12 Jan 2009 18:36:59 +0000 (19:36 +0100)]
Revert "i386: add TRACE_IRQS_OFF for the nmi"
This reverts commit
e0c7317557c8fc8eacf611e30c2a80f4e24e47a3.
This patch was wrong, as lockdep (and thus the irq state tracer)
aren't nmi safe. People are already seeing lockdep warnings due
to this.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Ingo Molnar [Mon, 12 Jan 2009 09:49:53 +0000 (10:49 +0100)]
Revert "cpumask: use work_on_cpu in acpi-cpufreq.c for drv_read and drv_write"
This reverts commit
7503bfbae89eba07b46441a5d1594647f6b8ab7d.
Dieter Ries reported bootup soft-hangs and bisected it back to
this commit, and reverting this commit gave him a working system.
The commit introduces work_on_cpu() use into the cpufreq code,
but that is subtly problematic from a lock hierarchy POV: the
hotplug-cpu lock is an highlevel lock that is taken before
lowlevel locks, and in this codepath we are called with the
policy lock taken.
Dieter did not have lockdep enabled so we dont have a nice stack
trace proof for this, but using work_on_cpu() in such a lowlevel
place certainly looks wrong, so we revert the patch.
work_on_cpu() needs to be reworked to be more generally usable.
Reported-by: Dieter Ries <clip2@gmx.de>
Tested-by: Dieter Ries <clip2@gmx.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Jaswinder Singh Rajput [Sun, 11 Jan 2009 15:04:47 +0000 (20:34 +0530)]
x86: fix apic.c build error on latest git
Fix this by reintroducing asm/smp.h include in apic.c - later on
I will fix this by removing non-smp data from smp.h
Also fix the __inquire_remote_apic() prototype/inline.
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Jaswinder Singh Rajput [Sun, 11 Jan 2009 13:08:55 +0000 (18:38 +0530)]
x86: fix mpparse.c build error on latest git
Fix this by reintroducing asm/smp.h include in mpparse.c - later on
I will fix this by removing non-smp data from smp.h.
Reported-by: Petr Titera <P.Titera@century.cz>
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Andi Kleen [Fri, 9 Jan 2009 20:17:43 +0000 (12:17 -0800)]
x86: avoid theoretical vmalloc fault loop
Ajith Kumar noticed:
I was going through the vmalloc fault handling for x86_64 and am unclear
about the following lines in the vmalloc_fault() function.
pgd = pgd_offset(current->mm ?: &init_mm, address);
pgd_ref = pgd_offset_k(address);
Here the intention is to get the pgd corresponding to the current process
and sync it up with the pgd in init_mm(obtained from pgd_offset_k).
However, for kernel threads current->mm is NULL and hence pgd =
pgd_offset(init_mm, address) = pgd_ref which means the fault handler
returns without setting the pgd entry in the MM structure in the context
of which the kernel thread has faulted. This could lead to never-ending
faults and busy looping of kernel threads like pdflush. So, shouldn't the
pgd = pgd_offset(current->mm ?: &init_mm, address); be pgd =
pgd_offset(current->active_mm ?: &init_mm, address);
We can use active_mm unconditionally because it should be always set.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Ingo Molnar [Mon, 12 Jan 2009 15:04:37 +0000 (16:04 +0100)]
smp_call_function_single(): be slightly less stupid, fix #2
fix m68k build failure:
tip/kernel/up.c: In function 'smp_call_function_single':
tip/kernel/up.c:16: error: dereferencing pointer to incomplete type
make[2]: *** [kernel/up.o] Error 1
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Russell King [Mon, 12 Jan 2009 13:51:40 +0000 (13:51 +0000)]
Merge branch 'for-rmk' of git://git.pengutronix.de/git/imx/linux-2.6
Nicolas Pitre [Fri, 9 Jan 2009 14:28:55 +0000 (15:28 +0100)]
[ARM] 5364/1: allow flush_ioremap_region() to be used from modules
Without this, the pxa2xx-flash driver cannot be used as a module.
Reported-by: Chris Lawrence <chrisdl@netspace.net.au>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>