| Commit message (Collapse) | Author | Age | Files | Lines |
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The commit 4d40bff7110e9e1a97ff8c01bdd6350e9867cc10 ("Allow CpU
exception in kernel partially") was broken. The commit was to fix
theoretical problem but broke usual case. Revert it for now.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Recent versions of the BCM112X processors aren't recognized by Linux
(preventing Linux from booting on those processors). This patch adds
support for those that are missing.
Signed-off-by: Mark Mason <mason@broadcom.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Support for Longhaul ver. 2 broke driver for VIA C3 Eden 600MHz with
Samuel 2 core. Processor is not able to switch frequency anymore. I
don't know much about this issue at the moment, but until (if ever) I
will know why, this part should be reversed.
Signed-off-by: Rafal Bilski <rafalbilski@interia.pl>
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
[BRIDGE]: Unaligned access when comparing ethernet addresses
[SCTP]: Unmap v4mapped addresses during SCTP_BINDX_REM_ADDR operation.
[SCTP]: Fix assertion (!atomic_read(&sk->sk_rmem_alloc)) failed message
[NET]: Set a separate lockdep class for neighbour table's proxy_queue
[NET]: Fix UDP checksum issue in net poll mode.
[KEY]: Fix conversion between IPSEC_MODE_xxx and XFRM_MODE_xxx.
[NET]: Get rid of alloc_skb_from_cache
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Since this was added originally for Xen, and Xen has recently (~2.6.18)
stopped using this function, we can safely get rid of it. Good timing
too since this function has started to bit rot.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
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* 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6:
[PATCH] x86: Fix potential overflow in perfctr reservation
[PATCH] x86: Fix gcc 4.2 _proxy_pda workaround
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While reviewing this code again I found a potential overflow of the bitmap.
The p4 oprofile can theoretically set bits beyond the reservation bitmap for
specific configurations. Avoid that by sizing the bitmaps properly.
Signed-off-by: Andi Kleen <ak@suse.de>
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Due to an over aggressive optimizer gcc 4.2 cannot optimize away _proxy_pda
in all cases (counter intuitive, but true). This breaks loading of some
modules.
The earlier workaround to just export a dummy symbol didn't work unfortunately
because the module code ignores exports with 0 value.
Make it 1 instead.
Signed-off-by: Andi Kleen <ak@suse.de>
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Override compiler .arch directive for generic kernel build.
Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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arch/alpha/kernel/sys_sx164.c
Earlier firmware revisions need MVI fix as well.
arch/alpha/kernel/sys_nautilus.c
On UP1500 firmware reports wrong AGP IRQ (10 instead of 5).
This causes interrupt storm if there is a PCI device that
uses IRQ 5.
Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Files:
arch/alpha/kernel/core_mcpcia.c
arch/alpha/kernel/sys_rawhide.c
include/asm-alpha/core_mcpcia.h
Determine correct hose configuration; RAWHIDE family can have
2 or 4 hoses, so make sure non-existent hoses are ignored.
arch/alpha/kernel/err_titan.c
Supply a needed #include <asm/irq_regs.h>
arch/alpha/kernel/module.c
Add some useful output to the relocation overflow messages.
arch/alpha/kernel/sys_noritake.c
Supply necessary noritake_end_irq() to correct interrupt handling.
This fixes a problem first noted by hangs during boot probing with
a DE500-BA TULIP NIC present.
arch/alpha/kernel/sys_sio.c
Correct saving of original PIRQ register (PCI IRQ routing);
change default PIRQ setting to leave PCI IRQs 9 and 14 free to
be used for sound (Multia) and IDE (any), respectively.
include/asm-alpha/io.h
Supply the "isa_virt_to_bus" routine.
Signed-off-by: Jay Estabrook <jay.estabrook@hp.com>
Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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cache_k8_northbridges() is storing config values to incorrect locations
(in flush_words) and also its overflowing beyond the allocation, causing
slab verification failures.
Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* master.kernel.org:/home/rmk/linux-2.6-arm:
[ARM] 4313/1: S3C24XX: Update s3c2410 defconfig to 2.6.21-rc6
[ARM] Update mach-types
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Update defconfig to the latest kernel version
and enable the h1940 LED driver
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Fix logic error in VMI relocation processing. NOPs would always cause
a BUG_ON to fire because the != RELOCATION_NONE in the first if clause
precluding the == VMI_RELOCATION_NOP in the second clause. Make these
direct equality tests and just warn for unsupported relocation types
(which should never happen), falling back to native in that case.
Thanks to Anthony Liguori for noting this!
Signed-off-by: Zachary Amsden <zach@vmware.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Provide a failsafe mechanism to avoid kernel spinning forever at
read_hpet_tsc during early kernel bootup.
This failsafe mechanism was originally introduced in commit
2f7a2a79c3ebb44f8b1b7d9b4fd3a650eb69e544, but looks like the hpet split
from time.c lost it again.
This reintroduces the failsafe mechanism
Signed-off-by: Ravikiran Thirumalai <kiran@scalex86.org>
Signed-off-by: Shai Fultheim <shai@scalex86.org>
Cc: Jack Steiner <steiner@sgi.com>
Cc: john stultz <johnstul@us.ibm.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:
[SPARC64]: Fix inline directive in pci_iommu.c
[SPARC64]: Fix arg passing to compat_sys_ipc().
[SPARC]: Fix section mismatch warnings in pci.c and pcic.c
[SUNRPC]: Make sure on-stack cmsg buffer is properly aligned.
[SPARC]: avoid CHILD_MAX and OPEN_MAX constants
[SPARC64]: Fix SBUS IOMMU allocation code.
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While building a test kernel for the new esp driver (against
git-current), I hit this bug. Trivial fix, put the inline declaration
in the right place. :)
Signed-off-by: Tom "spot" Callaway <tcallawa@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Do not sign extend args using the sys32_ipc stub, that is
buggy and unnecessary.
Based upon an excellent report by Mikael Pettersson.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fix section mismatch in arch/sparc/kernel/pcic.c and
arch/sparc64/kernel/pci.c.
Signed-off-by: Robert Reif <reif@earthlink.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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I don't figure anyone really cares about SunOS syscall emulation, and I
certainly don't. But I'm getting rid of uses of the OPEN_MAX and CHILD_MAX
compile-time constant, and these are almost the only ones. OPEN_MAX is a
bogus constant with no meaning about anything. The RLIMIT_NOFILE resource
limit is what sysconf (_SC_OPEN_MAX) actually wants to return.
The CHILD_MAX cases weren't actually using anything I want to get rid of,
but I noticed that they are there and are wrong too. The CHILD_MAX value
is not really unlimited as a -1 return from sysconf indicates. The
RLIMIT_NPROC resource limit is what sysconf (_SC_CHILD_MAX) wants to return.
Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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There are several IOMMU allocator bugs. Instead of trying to fix this
overly complicated code, just mirror the PCI IOMMU arena allocator
which is very stable and well stress tested.
I tried to make the code as identical as possible so we can switch
sun4u PCI and SBUS over to a common piece of IOMMU code. All that
will be need are two callbacks, one to do a full IOMMU flush and one
to do a streaming buffer flush.
This patch gets rid of a lot of hangs and mysterious crashes on SBUS
sparc64 systems, at least for me.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fix compilation of mpc866ads_setup.c
Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Fix compilation of mpc885ads_setup.c
Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Fix compilation of mpc8272ads_setup.c
Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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The bit setting was off by one.
Tested with RTC and GPIO_WKUP interrupts.
Signed-off-by: Domen Puncer <domen.puncer@telargo.com>
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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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] SGI Altix : fix pcibr_dmamap_ate32() bug
[IA64] Fix CPU freq displayed in /proc/cpuinfo
[IA64] Fix wrong assumption about irq and vector in msi_ia64.c
[IA64] BTE error timer fix
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On a SGI Altix TIOCP based PCI bus we need to include the ATE_PIO attribute
bit if we're mapping a 32bit MSI address.
Signed-off-by: Mike Habeck <habeck@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
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My patch: git commit=95235ca2c20ac0b31a8eb39e2d599bcc3e9c9a10 introduced a bug
in IA64 cpuinfo output.
Patch changed the proc_freq from 1HZ resolution to 1KHz resolution, but left
format string unchanged at " %lu.%06lu". Below is the fix.
Thanks to Bjorn for catching this.
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
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This patch fixes a wrong assumption in ia64 MSI code that IRQ equals
vector.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
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The bte recovery_timer was not being set correctly.
Signed-off-by: Russ Anderson <rja@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
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WARNING: arch/i386/kernel/built-in.o - Section mismatch: reference to .init.text:irqbalance_disable from .text between 'quirk_intel_irqbalance' (at offset 0x80a5) and 'i8237A_suspend'
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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WARNING: arch/x86_64/kernel/built-in.o - Section mismatch: reference to .init.text:nvidia_bugs from .data between 'early_qrk' (at offset 0x8428) and 'enable_cpu_hotplug'
WARNING: arch/x86_64/kernel/built-in.o - Section mismatch: reference to .init.text:via_bugs from .data between 'early_qrk' (at offset 0x8438) and 'enable_cpu_hotplug'
WARNING: arch/x86_64/kernel/built-in.o - Section mismatch: reference to .init.text:ati_bugs from .data between 'early_qrk' (at offset 0x8448) and 'enable_cpu_hotplug'
The compiler is putting it into .data because the __initdata is in the wrong
place.
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Since lazy MMU batching mode still allows interrupts to enter, it is
possible for interrupt handlers to try to use kmap_atomic, which fails when
lazy mode is active, since the PTE update to highmem will be delayed. The
best workaround is to issue an explicit flush in kmap_atomic_functions
case; this is the only way nested PTE updates can happen in the interrupt
handler.
Thanks to Jeremy Fitzhardinge for noting the bug and suggestions on a fix.
This patch gets reverted again when we start 2.6.22 and the bug gets fixed
differently.
Signed-off-by: Zachary Amsden <zach@vmware.com>
Cc: Andi Kleen <ak@muc.de>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6:
[PATCH] x86: Don't probe for DDC on VBE1.2
[PATCH] x86-64: Increase NMI watchdog probing timeout
[PATCH] x86-64: Let oprofile reserve MSR on all CPUs
[PATCH] x86-64: Disable local APIC timer use on AMD systems with C1E
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VBE1.2 doesn't support function 15h (DDC) resulting in a 'hang' whilst
uncompressing kernel with some video cards. Make sure we check VBE version
before fiddling around with DDC.
http://bugzilla.kernel.org/show_bug.cgi?id=1458
Opened: 2003-10-30 09:12 Last update: 2007-02-13 22:03
Much thanks to Tobias Hain for help in testing and investigating the bug.
Tested on;
i386, Chips & Technologies 65548 VESA VBE 1.2
CONFIG_VIDEO_SELECT=Y
CONFIG_FIRMWARE_EDID=Y
Untested on x86_64.
Signed-off-by: Zwane Mwaikambo <zwane@infradead.org>
Signed-off-by: Andi Kleen <ak@suse.de>
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A 4 core Opteron needs longer than 10 ticks for this.
Signed-off-by: Andi Kleen <ak@suse.de>
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The MSR reservation is per CPU and oprofile would only allocate them
on the CPU it was initialized on. Change this to handle all CPUs.
This also fixes a warning about unprotected use of smp_processor_id()
in preemptible kernels.
Signed-off-by: Andi Kleen <ak@suse.de>
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AMD dual core laptops with C1E do not run the APIC timer correctly
when they go idle. Previously the code assumed this only happened
on C2 or deeper. But not all of these systems report support C2.
Use a AMD supplied snippet to detect C1E being enabled and then disable
local apic timer use.
This supercedes an earlier workaround using DMI detection of specific systems.
Thanks to Mark Langsdorf for the detection snippet.
Signed-off-by: Andi Kleen <ak@suse.de>
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The __copy_to_user_inatomic() calls in file_read_actor() and pipe_read()
are broken on original i386 machines, where WP-works-ok == false, as
__copy_to_user_inatomic() on such systems calls functions which might
sleep and/or contain cond_resched() calls inside of a kmap_atomic()
region.
The original check for WP-works-ok was in access_ok(), but got moved
during the 2.5 series to fix a race vs. swap.
Return the number of bytes to copy in the case where we are in an atomic
region, so the non atomic code pathes in file_read_actor() and
pipe_read() are taken.
This could be optimized to avoid the kmap_atomicby moving the check for
WP-works-ok into fault_in_pages_writeable(), but this is more intrusive
and can be done later.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Fix the regression resulting from the recent change of suspend code
ordering that causes systems based on Intel x86 CPUs using the microcode
driver to hang during the resume.
The problem occurs since the microcode driver uses request_firmware() in
its CPU hotplug notifier, which is called after tasks has been frozen and
hangs. It can be fixed by telling the microcode driver to use the
microcode stored in memory during the resume instead of trying to load it
from disk.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Adrian Bunk <bunk@stusta.de>
Cc: Tigran Aivazian <tigran@aivazian.fsnet.co.uk>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Maxim <maximlevitsky@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Currently we have a confused udelay implementation.
* __const_udelay does not accept usecs but xloops in i386 and x86_64
* our implementation requires usecs as arg
* it gets a xloops count when called by asm/arch/delay.h
Bugs related to this (extremely long shutdown times) where reported by some
x86_64 users, especially using Device Mapper.
To hit this bug, a compile-time constant time parameter must be passed -
that's why UML seems to work most times. Fix this with a simple udelay
implementation.
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Acked-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* master.kernel.org:/home/rmk/linux-2.6-arm:
[ARM] 4298/1: fix memory barriers for DMA coherent and SMP platforms
[ARM] 4295/2: Fix error-handling in pxaficp_ir.c (version 2)
[ARM] Fix __NR_kexec_load
[ARM] Export dma_channel_active()
[ARM] 4296/1: ixp4xx: compile fix
[ARM] 4289/1: AT91: SAM9260 NAND flash timing
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dma_channel_active() is used by some modules and is part of our
DMA API, so export it.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Fix the NAND flash timings on the AT91SAM9260.
The current timings lead to the detection of a number of bad blocks.
These timings are now set the same as on the AT91SAM9263.
Patch from Nicolas Ferre.
Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
[MIPS] SMTC: Fix recursion in instant IPI replay code.
[MIPS] BCM1480: Fix setting of irq affinity.
[MIPS] do_page_fault() needs to use raw_smp_processor_id().
[MIPS] SMTC: Fix false trigger of debug code on single VPE.
[MIPS] SMTC: irq_{enter,leave} and kstats keeping for relayed timer ints.
[MIPS] lockdep: Deal with interrupt disable hazard in TRACE_IRQFLAGS
[MIPS] lockdep: Handle interrupts in R3000 style c0_status register.
[MIPS] MV64340: Add missing prototype for mv64340_irq_init().
[MIPS] MT: MIPS_MT_SMTC_INSTANT_REPLAY currently conflicts with PREEMPT.
[MIPS] EV64120: Include <asm/irq.h> to fix warning.
[MIPS] Ocelot: Fix warning.
[MIPS] Ocelot: Give PMON_v1_setup a proper prototype.
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local_irq_restore -> raw_local_irq_restore -> irq_restore_epilog ->
smtc_ipi_replay -> smtc_ipi_dq -> spin_unlock_irqrestore ->
_spin_unlock_irqrestore -> local_irq_restore
The recursion does abort when there is no more IPI queued for a CPU, so
this isn't usually fatal which is why we got away with this for so long
until this was discovered by code inspection.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Mark Mason <mason@broadcom.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Original patch posted by Deepak Saxena <dsaxena@plexity.net>.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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