| Commit message (Collapse) | Author | Age |
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We saw a kernel soft lockup in perf_remove_from_context(),
it looks like the `perf` process, when exiting, could not go
out of the retry loop. Meanwhile, the target process was forking
a child. So either the target process should execute the smp
function call to deactive the event (if it was running) or it should
do a context switch which deactives the event.
It seems we optimize out a context switch in perf_event_context_sched_out(),
and what's more important, we still test an obsolete task pointer when
retrying, so no one actually would deactive that event in this situation.
Fix it directly by reloading the task pointer in perf_remove_from_context().
This should cure the above soft lockup.
Signed-off-by: Cong Wang <cwang@twopensource.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: <stable@vger.kernel.org>
Link: http://lkml.kernel.org/r/1409696840-843-1-git-send-email-xiyou.wangcong@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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This patch frees the 'optinsn' slot when we get a range check error,
to prevent memory leaks.
Before this patch, cache entry in kprobe_insn_cache() won't be freed
if kprobe optimizing fails due to range check failure.
Signed-off-by: Wang Nan <wangnan0@huawei.com>
Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Pei Feiyue <peifeiyue@huawei.com>
Link: http://lkml.kernel.org/r/1406550019-70935-1-git-send-email-wangnan0@huawei.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
"Misc fixes:
EFI fixes, a build fix, a page table dumping (debug) fix and a clang
build fix"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
efi/arm64: Fix fdt-related memory reservation
x86/mm: Apply the section attribute to the variable, not its type
x86/efi: Fixup GOT in all boot code paths
x86/efi: Only load initrd above 4g on second try
x86-64, ptdump: Mark espfix area only if existent
x86, irq: Fix build error caused by 9eabc99a635a77cbf09
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git://git.kernel.org/pub/scm/linux/kernel/git/mfleming/efi into x86/urgent
Pull EFI fixes from Matt Fleming:
* Fix early boot regression affecting x86 EFI boot stub when loading
initrds above 4GB - Yinghai Lu
* Relocate GOT entries in the x86 EFI boot stub now that we have
symbols with global visibility - Matt Fleming
* fdt memory reservation fix for arm64 - Mark Salter
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Commit 86c8b27a01cf:
"arm64: ignore DT memreserve entries when booting in UEFI mode
prevents early_init_fdt_scan_reserved_mem() from being called for
arm64 kernels booting via UEFI. This was done because the kernel
will use the UEFI memory map to determine reserved memory regions.
That approach has problems in that early_init_fdt_scan_reserved_mem()
also reserves the FDT itself and any node-specific reserved memory.
By chance of some kernel configs, the FDT may be overwritten before
it can be unflattened and the kernel will fail to boot. More subtle
problems will result if the FDT has node specific reserved memory
which is not really reserved.
This patch has the UEFI stub remove the memory reserve map entries
from the FDT as it does with the memory nodes. This allows
early_init_fdt_scan_reserved_mem() to be called unconditionally
so that the other needed reservations are made.
Signed-off-by: Mark Salter <msalter@redhat.com>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
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Maarten reported that his Macbook pro 8.2 stopped booting after commit
f23cf8bd5c1f49 ("efi/x86: efistub: Move shared dependencies to
<asm/efi.h>"), the main feature of which is changing the visibility of
symbol 'efi_early' from local to global.
By making 'efi_early' global we end up requiring an entry in the Global
Offset Table. Unfortunately, while we do include code to fixup GOT
entries in the early boot code, it's only called after we've executed
the EFI boot stub.
What this amounts to is that references to 'efi_early' in the EFI boot
stub don't point to the correct place.
Since we've got multiple boot entry points we need to be prepared to
fixup the GOT in multiple places, while ensuring that we never do it
more than once, otherwise the GOT entries will still point to the wrong
place.
Reported-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Tested-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
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Mantas found that after commit 4bf7111f5016 ("x86/efi: Support initrd
loaded above 4G"), the kernel freezes at the earliest possible moment
when trying to boot via UEFI on Asus laptop.
Revert to old way to load initrd under 4G on first try, second try will
use above 4G buffer when initrd is too big and does not fit under 4G.
[ The cause of the freeze appears to be a firmware bug when reading
file data into buffers above 4GB, though the exact reason is unknown.
Mantas reports that the hang can be avoid if the file size is a
multiple of 512 bytes, but I've seen some ASUS firmware simply
corrupting the file data rather than freezing.
Laszlo fixed an issue in the upstream EDK2 DiskIO code in Aug 2013
which may possibly be related, commit 4e39b75e ("MdeModulePkg/DiskIoDxe:
fix source/destination pointer of overrun transfer").
Whatever the cause, it's unlikely that a fix will be forthcoming
from the vendor, hence the workaround - Matt ]
Cc: Laszlo Ersek <lersek@redhat.com>
Reported-by: Mantas Mikulėnas <grawity@gmail.com>
Reported-by: Harald Hoyer <harald@redhat.com>
Tested-by: Anders Darander <anders@chargestorm.se>
Tested-by: Calvin Walton <calvin.walton@kepstin.ca>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
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This fixes a compilation error in clang in that a linker section
attribute can't be added to a type:
arch/x86/mm/mmap.c:34:8: error: '__section__' attribute only applies to functions and global variables struct __read_mostly
...
By moving the section attribute to the variable declaration, the
desired effect is achieved.
Signed-off-by: Jan-Simon Möller <dl9pf@gmx.de>
Signed-off-by: Behan Webster <behanw@converseincode.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/r/1409959005-11479-1-git-send-email-behanw@converseincode.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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We should classify the espfix area as such only if we actually have
enabled the corresponding option. Otherwise the page table dump might
look confusing.
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Link: http://lkml.kernel.org/r/1410114629-24523-1-git-send-email-minipli@googlemail.com
Cc: Arjan van de Ven <arjan.van.de.ven@intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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Commit 9eabc99a635a77cbf09 causes following build error when
IOAPIC is disabled.
arch/x86/pci/irq.c: In function 'pirq_disable_irq':
>> arch/x86/pci/irq.c:1259:2: error: implicit declaration of function 'mp_should_keep_irq' [-Werror=implicit-function-declaration]
if (io_apic_assign_pci_irqs && !mp_should_keep_irq(&dev->dev) &&
^
cc1: some warnings being treated as errors
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Grant Likely <grant.likely@linaro.org>
Link: http://lkml.kernel.org/r/1409382916-10649-1-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Pull MIPS fixes from Ralf Baechle:
"A fair number of build fixes for various configurations.
Fixes to BPF, and the BCM47xx platform code, a preemption fix for the
Loongson core, a syscall auditing fix, wire up the new getrandom and
memfd_create. Several patches for EVA"
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (30 commits)
MIPS: SmartMIPS: Disable assembler warnings
MIPS: Move CPU topology macros to topology.h
MIPS: Wire up new syscalls getrandom and memfd_create.
MIPS: Fix a warning for virt_to_page
arch/mips/net/bpf_jit.c: fix failure check
MIPS: COP2: CPP macro safety fixes.
MIPS: Kconfig: Select SMP symbols for CMP
MIPS: ZBOOT: add missing <linux/string.h> include
MIPS: IP28: Fix/clean spaces.h
MIPS: IP28: Select correct L1_CACHE_SHIFT
MIPS: BCM63xx: delete double assignment
MIPS: Spelling s/confugrations/configurations/
MIPS: OCTEON: make get_system_type() thread-safe
MIPS: CPS: Initialize EVA before bringing up VPEs from secondary cores
MIPS: Malta: EVA: Rename 'eva_entry' to 'platform_eva_init'
MIPS: EVA: Add new EVA header
MIPS: scall64-o32: Fix indirect syscall detection
MIPS: syscall: Fix AUDIT value for O32 processes on MIPS64
MIPS: Loongson: Fix COP2 usage for preemptible kernel
MIPS: NL: Fix nlm_xlp_defconfig build error
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The kernel code overrides the default ISA as passed by the compiler
in quite a few places. This has unfortunate side effects when smartmips
is enabled leading to hundreds of warnings during build such as:
{standard input}: Assembler messages:
{standard input}:411: Warning: the `smartmips' extension requires MIPS32
revision 1 or greater
{standard input}: Assembler messages:
{standard input}:43: Warning: the 64-bit MIPS architecture does not support the
`smartmips' extension
[...]
Until the kernel code is fixed properly (if possible), disable all the
assembler warning messages to make the build logs readable again.
This has no runtime side effects but it makes it easier to spot
more critical warnings and problems during build.
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7356/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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The correct position is topology.h, and this fix macros redefinition
problems for Netlogic.
[ralf@linux-mips.org: Fix build - the original patch broke most
configurations.]
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Cc: Jayachandran C. <jchandra@broadcom.com>
Cc: John Crispin <john@phrozen.org>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: linux-mips@linux-mips.org
Cc: Fuxin Zhang <zhangfx@lemote.com>
Cc: Zhangjin Wu <wuzhangjin@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/7575/
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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Compiling mm/highmem.c gives a warning: passing argument 1 of
'virt_to_phys' makes pointer from integer without a cast
Fixed by casting to void*
Signed-off-by: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7337/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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static int pkt_type_offset(void) returned -1 in case of failure, and actual
(positive) offset value in case of success. In the only instance of its usage,
the result was saved to local "unsigned int off" variable, which is used in a
lot of places in the same (large) function, so changing its type could cause
many warnings. So new signed int variable was added.
Signed-off-by: Andrey Utkin <andrey.krieger.utkin@gmail.com>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=80371
Reported-by: David Binderman <dcb314@hotmail.com>
Cc: linux-kernel@vger.kernel.org
Cc: kernel-janitors@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: dborkman@redhat.com
Cc: markos.chandras@imgtec.com
Patchwork: https://patchwork.linux-mips.org/patch/7380/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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- Don't pass things to macros that couldn't be dereferences if that
macro was actually a function.
- Don't use empty function-like macros.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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CMP is an SMP implementation, and as a result of which, it needs
to select the SYS_SUPPORTS_SMP and SMP symbols. This fixes the
following build problem when CMP is enabled but SMP is not.
In file included from arch/mips/kernel/smp-cmp.c:34:0:
./arch/mips/include/asm/smp.h:26:0: error: "raw_smp_processor_id" redefined
[-Werror]
#define raw_smp_processor_id() (current_thread_info()->cpu)
[...]
In file included from arch/mips/kernel/smp-cmp.c:34:0:
./arch/mips/include/asm/smp.h:59:20: error: redefinition of
'smp_send_reschedule'
[...]
./arch/mips/include/asm/smp.h: In function 'smp_send_reschedule':
./arch/mips/include/asm/smp.h:63:8: error: dereferencing pointer to incomplete
type
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7436/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Commit dc4d7b37 (MIPS: ZBOOT: gather string functions into string.c)
moved the string related functions into a separate file, which might
cause the following build error, depending on the configuration:
| CC arch/mips/boot/compressed/decompress.o
| In file included from linux/arch/mips/boot/compressed/../../../../lib/decompress_unxz.c:234:0,
| from linux/arch/mips/boot/compressed/decompress.c:67:
| linux/arch/mips/boot/compressed/../../../../lib/xz/xz_dec_stream.c: In function 'fill_temp':
| linux/arch/mips/boot/compressed/../../../../lib/xz/xz_dec_stream.c:162:2: error: implicit declaration of function 'memcpy' [-Werror=implicit-function-declaration]
| cc1: some warnings being treated as errors
| linux/scripts/Makefile.build:308: recipe for target 'arch/mips/boot/compressed/decompress.o' failed
| make[6]: *** [arch/mips/boot/compressed/decompress.o] Error 1
| linux/arch/mips/Makefile:308: recipe for target 'vmlinuz' failed
It does not fail with the standard configuration, as when
CONFIG_DYNAMIC_DEBUG is not enabled <linux/string.h> gets included in
include/linux/dynamic_debug.h. There might be other ways for it to
get indirectly included.
We can't add the include directly in xz_dec_stream.c as some
architectures might want to use a different version for the boot/
directory (see for example arch/x86/boot/string.h).
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Cc: stable@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7420/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Broken values for UNCAC_BASE/IO_BASE caused complete breakage of IP28
builds. Only set special PHY_OFFSET and take everything else from
generic spaces.h
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7549/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
(cherry picked from commit 81832d7e7962a40d08d9fe2e7e71b7887bc30097)
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IP28 has 128 byte cache lines.
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7548/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Delete successive assignments to the same location. In each case, the
duplicated assignment is modified to be in line with other nearby code.
A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@@
expression i;
@@
*i = ...;
i = ...;
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: joe@perches.com
Cc: kernel-janitors@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/7565/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Jiri Kosina <trivial@kernel.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7573/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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get_system_type() is not thread-safe on OCTEON. It uses static data,
also more dangerous issue is that it's calling cvmx_fuse_read_byte()
every time without any synchronization. Currently it's possible to get
processes stuck looping forever in kernel simply by launching multiple
readers of /proc/cpuinfo:
(while true; do cat /proc/cpuinfo > /dev/null; done) &
(while true; do cat /proc/cpuinfo > /dev/null; done) &
...
Fix by initializing the system type string only once during the early
boot.
Signed-off-by: Aaro Koskinen <aaro.koskinen@nsn.com>
Cc: stable@vger.kernel.org
Reviewed-by: Markos Chandras <markos.chandras@imgtec.com>
Patchwork: http://patchwork.linux-mips.org/patch/7437/
Signed-off-by: James Hogan <james.hogan@imgtec.com>
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The CPS code is doing several memory loads when configuring the VPEs
from secondary cores, so the segmentation control registers must be
initialized in time otherwise the kernel will crash with strange
TLB exceptions.
Reviewed-by: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Patchwork: http://patchwork.linux-mips.org/patch/7424/
Signed-off-by: James Hogan <james.hogan@imgtec.com>
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Rename 'eva_entry' to 'platform_eva_init' as required by the new
'eva_init' macro in the eva.h header. Since this macro is now used
in a platform dependent way, it must not depend on its caller so move
the t1 register initialization inside this macro. Also set the .reorder
assembler option in case the caller may have previously set .noreorder.
This may allow a few assembler optimizations. Finally include missing
headers and document the register usage for this macro.
Reviewed-by: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Patchwork: http://patchwork.linux-mips.org/patch/7423/
Signed-off-by: James Hogan <james.hogan@imgtec.com>
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Generic code may need to perform certain operations when EVA is
enabled, for example, configure the segmentation registers during
boot. In order to avoid using more CONFIG_EVA ifdefs in the arch code,
such functions will be added in this header instead.
Initially this header contains a macro which will be used by generic
code later on during VPEs configuration on secondary cores.
All it does is to call the platform specific EVA init code in case
EVA is enabled.
Reviewed-by: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Patchwork: http://patchwork.linux-mips.org/patch/7422/
Signed-off-by: James Hogan <james.hogan@imgtec.com>
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Commit 4c21b8fd8f14 (MIPS: seccomp: Handle indirect system calls (o32))
added indirect syscall detection for O32 processes running on MIPS64
but it did not work as expected. The reason is the the scall64-o32
implementation differs compared to scall32-o32. In the former, the v0
(syscall number) register contains the absolute syscall number
(4000 + X) whereas in the latter it contains the relative syscall
number (X). Fix the code to avoid doing an extra addition, and load
the v0 register directly to the first argument for syscall_trace_enter.
Moreover, set the .reorder assembler option in order to have better
control on this part of the assembly code.
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Patchwork: http://patchwork.linux-mips.org/patch/7481/
Cc: <stable@vger.kernel.org> # v3.15+
Signed-off-by: James Hogan <james.hogan@imgtec.com>
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On MIPS64, O32 processes set both TIF_32BIT_ADDR and
TIF_32BIT_REGS so the previous condition treated O32 applications
as N32 when evaluating seccomp filters. Fix the condition to check
both TIF_32BIT_{REGS, ADDR} for the N32 AUDIT flag.
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Patchwork: http://patchwork.linux-mips.org/patch/7480/
Cc: <stable@vger.kernel.org> # v3.15+
Signed-off-by: James Hogan <james.hogan@imgtec.com>
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In preemptible kernel, only TIF_USEDFPU flag is reliable to distinguish
whether _init_fpu()/_restore_fp() is needed. Because the value of the
CP0_Status.CU1 isn't changed during preemption.
V2: Fix coding style.
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Cc: John Crispin <john@phrozen.org>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: linux-mips@linux-mips.org
Cc: Fuxin Zhang <zhangfx@lemote.com>
Cc: Zhangjin Wu <wuzhangjin@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/7515/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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The nlm_xlp_defconfig build fails with
./arch/mips/include/asm/mach-netlogic/topology.h:15:0:
error: "topology_core_id" redefined [-Werror]
In file included from include/linux/smp.h:59:0,
[ ...]
from arch/mips/mm/dma-default.c:12:
./arch/mips/include/asm/smp.h:41:0:
note: this is the location of the previous definition
and similar errors.
This is caused by commit bda4584cd943d7 ("MIPS: Support CPU topology files
in sysfs") which adds the defines to arch/mips/include/asm/smp.h.
Remove the defines from arch/mips/include/asm/mach-netlogic/topology.h
as no longer necessary.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Cc: Huacai Chen <chenhc@lemote.com>
Cc: Andreas Herrmann <andreas.herrmann@caviumnetworks.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/7513/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Multicore MIPSes without I/D hardware coherency suffered from a race
condition in the page fault handler. The page table entry was
published before any pending lazy D-cache flush was committed, hence
it allowed execution of stale page cache data by other VPEs in the
system.
To make the cache handling safe we need to perform flushing already in
the set_pte_at function. MIPSes without coherent I-caches can get a
small increase in flushes due to the unavailability of the execute
flag in set_pte_at.
[ralf@linux-mips.org: outlining set_pte_at() saves a good k in a test
build, so I moved its definition from pgtable.h to cache.c.]
Signed-off-by: Lars Persson <larper@axis.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7511/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Using kstrtol to parse the "{e,}memsize" variables was wrong because this
parses signed long numbers. In case of '{e,}memsize' >= 2G, the top bit
is set, resulting to -ERANGE errors and possibly random system memory
boundaries. We fix this by replacing "kstrtol" with "kstrtoul".
We also improve the code to check the kstrtoul return value and
print a warning if an error was returned.
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: <stable@vger.kernel.org> # v3.15+
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7543/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Enable PSC0 (I2C/SPI) clock and leave PSC1 (Audio) alone. This patch
restores functionality to both Audio and I2C/SPI.
Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/7544/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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This adds some code based on code from the Broadcom GPL tar to fix the
reboot problems on BCM4705/BCM4785. I tried rebooting my device for ~10
times and have never seen a problem. This reverts the changes in the
previous commit and adds the real fix as suggested by Rafał.
Setting bit 22 in Reg 22, sel 4 puts the BIU (Bus Interface Unit) into
async mode.
The previous commit was 316cad5c1d4daee998cd1f83ccdb437f6f20d45c [MIPS:
BCM47XX: make reboot more relaiable]
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Cc: jogo@openwrt.org
Cc: zajec5@gmail.com
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7545/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Cc: Huacai Chen <chenhc@lemote.com>
Cc: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/7537/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Add common declaration to get rid of following sparse warning: "symbol
'plat_irq_dispatch' was not declared. Should it be static?"
Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
Cc: Linux MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/7539/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Remove unused argument to make the plat_irq_dispatch() function
declaration similar to the realization of other platforms.
Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
Cc: Linux MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/7538/
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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In RT kernel, I ran into the following calltrace, so PMU interrupts cannot
be threaded
in_atomic(): 1, irqs_disabled(): 1, pid: 0, name: swapper/0
INFO: lockdep is turned off.
Call Trace:
[<ffffffff8088595c>] dump_stack+0x1c/0x50
[<ffffffff801a958c>] __might_sleep+0x13c/0x148
[<ffffffff80891c54>] rt_spin_lock+0x3c/0xb0
[<ffffffff801ad29c>] __wake_up+0x3c/0x80
[<ffffffff80243ba4>] perf_event_wakeup+0x8c/0xf8
[<ffffffff80243c50>] perf_pending_event+0x40/0x78
[<ffffffff8023d88c>] irq_work_run+0x74/0xc0
[<ffffffff80152640>] mipsxx_pmu_handle_shared_irq+0x110/0x228
[<ffffffff8015276c>] mipsxx_pmu_handle_irq+0x14/0x30
[<ffffffff801ffda4>] handle_irq_event_percpu+0xbc/0x470
[<ffffffff80204478>] handle_percpu_irq+0x98/0xc8
[<ffffffff801ff284>] generic_handle_irq+0x4c/0x68
[<ffffffff8089748c>] do_IRQ+0x2c/0x48
[<ffffffff80105864>] plat_irq_dispatch+0x64/0xd0
[ralf@linux-mips.org: I don't see why based on this register dump the
handler should be marked IRQF_NO_THREAD - but the handler is manipulating
per-CPU resources so we don't want it to be rescheduled to another CPU.]
Signed-off-by: Yang Wei <Wei.Yang@windriver.com>
Cc: a.p.zijlstra@chello.nl
Cc: paulus@samba.org
Cc: mingo@redhat.com
Cc: acme@kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7506/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Since there is not indirection page in crash type, so the vaule of the head
field of kimage structure is not equal to the address of indirection page but
IND_DONE. so we have to set kexec_indirection_page variable to the address of
the head field of image structure.
[ralf@linux-mips.org: Don't add pointless empty line, fix trailing
whitespace damage.]
Signed-off-by: Yang Wei <Wei.Yang@windriver.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/7499/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Pull cifs/smb3 fixes from Steve French:
"Fixes for problems found during testing and debugging at the SMB3
storage test event (plugfest) this week"
* 'for-linus' of git://git.samba.org/sfrench/cifs-2.6:
Fix mfsymlinks file size check
Update version number displayed by modinfo for cifs.ko
cifs: remove dead code
Revert "cifs: No need to send SIGKILL to demux_thread during umount"
[SMB3] Fix oops when creating symlinks on smb3
[CIFS] Fix setting time before epoch (negative time values)
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If the mfsymlinks file size has changed (e.g. the file no longer
represents an emulated symlink) we were not returning an error properly.
Signed-off-by: Steve French <smfrench@gmail.com>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
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Update cifs.ko version to 2.05
Signed-off-by: Steve French <smfrench@gmail.com>w
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cifs provides two dummy functions 'sess_auth_lanman' and
'sess_auth_kerberos' for the case in which the respective
features are not defined. However, the caller is also under
an #ifdef, so we just get warnings about unused code:
fs/cifs/sess.c:1109:1: warning: 'sess_auth_kerberos' defined but not used [-Wunused-function]
sess_auth_kerberos(struct sess_data *sess_data)
Removing the dead functions gets rid of the warnings without
any downsides that I can see.
(Yalin Wang reported the identical problem and fix so added him)
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Yalin Wang <yalin.wang@sonymobile.com>
Signed-off-by: Steve French <smfrench@gmail.com>
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This reverts commit 52a36244443eabb594bdb63622ff2dd7a083f0e2.
Causes rmmod to fail for at least 7 seconds after unmount which
makes automated testing a little harder when reloading cifs.ko
between test runs.
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
CC: Jeff Layton <jlayton@primarydata.com>
Signed-off-by: Steve French <smfrench@gmail.com>
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We were not checking for symlink support properly for SMB2/SMB3
mounts so could oops when mounted with mfsymlinks when try
to create symlink when mfsymlinks on smb2/smb3 mounts
Signed-off-by: Steve French <smfrench@gmail.com>
Cc: <stable@vger.kernel.org> # 3.14+
CC: Sachin Prabhu <sprabhu@redhat.com>
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xfstest generic/258 sets the time on a file to a negative value
(before 1970) which fails since do_div can not handle negative
numbers. In addition 'normal' division of 64 bit values does
not build on 32 bit arch so have to workaround this by special
casing negative values in cifs_NTtimeToUnix
Samba server also has a bug with this (see samba bugzilla 7771)
but it works to Windows server.
Signed-off-by: Steve French <smfrench@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"All small fixes in random various drivers, mostly for ASoC at this
time, which look reasonable for a high rc number"
* tag 'sound-3.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ASoC: rockchip-i2s: dt: swap tx and rx channed request number in example
ASoC: rockchip-i2s: fix registers' property of rockchip i2s controller
ASoC: rockchip-i2s: fix master mode set bit error
ASoC: cs4265: Fix register address to set the proper data type.
ALSA: hda - Fix invalid pin powermap without jack detection
ASoC: soc-pcm: fix dpcm_path_get error handling
ASoC: samsung-i2s: Check secondary DAI exists before referencing
ASoC: Update email id of the author
ASoC: dwc: Update email id of the author
ASoC: davinci-mcasp: Correct rx format unit configuration
ASoC: tlv320aic31xx: Fix 24bit samples with I2S format and 12MHz mclk
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v3.17
This is mostly driver fixes, the biggest one being the tlv320aic31xx
which is relatively large but simple and device specific. There's a
small fix in the error handling in DPCM too which is relatively minor
error handling fix.
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