[PATCH v2] kselftest/timers: fix build failure

Pass missing parameter to ksft_exit_skip. Signed-off-by: Santosh Sivaraj <sant...@fossix.org> --- V2 update: Pass NULL as suggested by Miroslav Lichvar tools/testing/selftests/timers/freq-step.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/

[PATCH] kselftest/timers: fix build failure

"message" parameter was not passed to ksft_exit_skip. Signed-off-by: Santosh Sivaraj <sant...@fossix.org> --- tools/testing/selftests/timers/freq-step.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/timers/freq-step.c b/tools/t

Re: [linux-next] SMT off triggers WARNING: CPU: 1 PID: 13 at arch/powerpc/kernel/watchdog.c:314 stop_wd_on_cpu+0x54/0xf0

* Abdul Haleem wrote (on 2017-07-03 11:25:18 +0530): > Hi, > > Today's next-20170630 on powerpc shows warnings in dmesg when SMT is > disabled. Fix provided by Nick: https://lkml.org/lkml/2017/6/30/143 Thanks, Santosh > > Test: SMT off > kernel:

Re: [RFC][PATCH v2 0/7] printk/ia64/ppc64/parisc64: let's deprecate %pF/%pf printk specifiers

ardware, so the patches are not > tested. Sorry about that! Tested patch series on ppc64 sucessfully. You may add tested by to the series. Tested-by: Santosh Sivaraj <sant...@fossix.org> Thanks, Santosh > > Another note: > I need to check what is BPF symbol l

Re: [PATCH] powerpc/perf: Fix for core/nest imc call trace on cpuhotplug

if the reference count is alreday zero, before > decrementing > the count, so that the ref count will not hit a negative value. > > > > Signed-off-by: Anju T Sudhakar <a...@linux.vnet.ibm.com> Reviewed-by: Santosh Sivaraj <sant...@fossix.org> > --- > arch/pow

Re: null dereference in binfmt misc

* Tycho Andersen wrote (on 2017-10-09 21:19:40 +): > Hi, > > It looks like eb23aa031 ("exec: binfmt_misc: remove the confusing > e->interp_file != NULL checks") uncovered a bug for me (see the trace below, > which I'm afraid isn't very helpful). > I too can reproduce this

Re: [PATCHv4 3/6] powerpc64: Add .opd based function descriptor dereference

at...@gmail.com> > --- > arch/powerpc/include/asm/module.h | 3 +++ > arch/powerpc/include/asm/sections.h | 12 > arch/powerpc/kernel/module_64.c | 14 ++ > arch/powerpc/kernel/vmlinux.lds.S | 2 ++ > 4 files changed, 31 insertions(+) > Looks go

[PATCH] kselftest/timers: fix build failure

"message" parameter was not passed to ksft_exit_skip. Signed-off-by: Santosh Sivaraj --- tools/testing/selftests/timers/freq-step.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/timers/freq-step.c b/tools/testing/selftests/timers/freq-st

[PATCH v2] kselftest/timers: fix build failure

Pass missing parameter to ksft_exit_skip. Signed-off-by: Santosh Sivaraj --- V2 update: Pass NULL as suggested by Miroslav Lichvar tools/testing/selftests/timers/freq-step.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/timers/freq-step.c b/tools

Re: [PATCH] powerpc/perf: Fix for core/nest imc call trace on cpuhotplug

ive value. > > > > Signed-off-by: Anju T Sudhakar Reviewed-by: Santosh Sivaraj > --- > arch/powerpc/perf/imc-pmu.c | 28 > 1 file changed, 28 insertions(

Re: [PATCHv4 3/6] powerpc64: Add .opd based function descriptor dereference

gt; arch/powerpc/include/asm/sections.h | 12 > arch/powerpc/kernel/module_64.c | 14 ++ > arch/powerpc/kernel/vmlinux.lds.S | 2 ++ > 4 files changed, 31 insertions(+) > Looks good on powerpc. If you wish: Tested-by: Santosh Sivaraj # for powerp

Re: [RFC][PATCH v2 0/7] printk/ia64/ppc64/parisc64: let's deprecate %pF/%pf printk specifiers

; section. > > - dereference_module_function_descriptor(module, addr) > dereference a module pointer if it's within the module's .opd > section. > > > *** A BIG NOTE *** > I don't own ia64/ppc64/parisc64 hardware, so the patches are not >

Re: [linux-next] SMT off triggers WARNING: CPU: 1 PID: 13 at arch/powerpc/kernel/watchdog.c:314 stop_wd_on_cpu+0x54/0xf0

* Abdul Haleem wrote (on 2017-07-03 11:25:18 +0530): > Hi, > > Today's next-20170630 on powerpc shows warnings in dmesg when SMT is > disabled. Fix provided by Nick: https://lkml.org/lkml/2017/6/30/143 Thanks, Santosh > > Test: SMT off > kernel: 4.12.0-rc7-next-20170630 > Machine: Power 8

Re: null dereference in binfmt misc

* Tycho Andersen wrote (on 2017-10-09 21:19:40 +): > Hi, > > It looks like eb23aa031 ("exec: binfmt_misc: remove the confusing > e->interp_file != NULL checks") uncovered a bug for me (see the trace below, > which I'm afraid isn't very helpful). > I too can reproduce this issue. From

[PATCH v2] kernel/watchdog: Fix watchdog_allowed_mask not used warning

Define watchdog_allowed_mask only when SOFTLOCKUP_DETECTOR is enabled. Fixes: 7feeb9cd4f5b ("watchdog/sysctl: Clean up sysctl variable name space") Cc: Thomas Gleixner Cc: Andrew Morton Reviewed-by: Petr Mladek Signed-off-by: Santosh Sivaraj --- v2: Added Petr's reviewed-by from [

Re: [PATCH] powerpc/mm: tell if a bad page fault on data is read or write.

Christophe Leroy writes: > DSISR has a bit to tell if the fault is due to a read or a write. > > Display it. > > Signed-off-by: Christophe Leroy Reviewed-by: Santosh Sivaraj > --- > arch/powerpc/mm/fault.c | 6 -- > 1 file changed, 4 insertions(+), 2 deletions(

Re: [PATCH v2 4/8] powerpc/vdso32: inline __get_datapage()

Hi Christophe, Christophe Leroy writes: > __get_datapage() is only a few instructions to retrieve the > address of the page where the kernel stores data to the VDSO. > > By inlining this function into its users, a bl/blr pair and > a mflr/mtlr pair is avoided, plus a few reg moves. > > The

[PATCH] x86/mce: Remove redundant irq work

IRQ work currently only does a schedule work to process the mce events. Since irq work does no other function, remove it. Signed-off-by: Santosh Sivaraj --- arch/x86/kernel/cpu/mce/core.c | 12 +++- 1 file changed, 3 insertions(+), 9 deletions(-) diff --git a/arch/x86/kernel/cpu/mce

Re: [PATCH v10 2/7] powerpc/mce: Fix MCE handling for huge pages

m: Fixup pseries_do_memory_failure()] >> Signed-off-by: Reza Arbab >> Co-developed-by: Santosh Sivaraj >> Signed-off-by: Santosh Sivaraj >> Tested-by: Mahesh Salgaonkar >> Cc: sta...@vger.kernel.org # v4.15+ >> --- >> arch/powerpc/include/asm/mce.h

[PATCH v11 0/7] powerpc: implement machine check safe memcpy

mcpy_mcsafe for pmem Reza Arbab (1): powerpc/mce: Make machine_check_ue_event() static Santosh Sivaraj (3): powerpc/mce: Schedule work from irq_work extable: Add function to search only kernel exception table powerpc: add machine check safe copy_to_user arch/powerpc/Kconfig

[PATCH v11 2/7] powerpc/mce: Fix MCE handling for huge pages

: ba41e1e1ccb9 ("powerpc/mce: Hookup derror (load/store) UE errors") Signed-off-by: Balbir Singh [ar...@linux.ibm.com: Fixup pseries_do_memory_failure()] Signed-off-by: Reza Arbab Tested-by: Mahesh Salgaonkar Signed-off-by: Santosh Sivaraj Cc: sta...@vger.kernel.org # v4.15+ --- arch/powe

[PATCH v11 3/7] powerpc/mce: Make machine_check_ue_event() static

From: Reza Arbab The function doesn't get used outside this file, so make it static. Signed-off-by: Reza Arbab Signed-off-by: Santosh Sivaraj Reviewed-by: Nicholas Piggin --- arch/powerpc/kernel/mce.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/powerpc

[PATCH v11 4/7] extable: Add function to search only kernel exception table

Gleixner Cc: Ingo Molnar Cc: Nicholas Piggin Signed-off-by: Santosh Sivaraj Reviewed-by: Nicholas Piggin --- include/linux/extable.h | 2 ++ kernel/extable.c| 11 +-- 2 files changed, 11 insertions(+), 2 deletions(-) diff --git a/include/linux/extable.h b/include/linux/extable.h

[PATCH v11 1/7] powerpc/mce: Schedule work from irq_work

schedule_work() cannot be called from MCE exception context as MCE can interrupt even in interrupt disabled context. fixes: 733e4a4c ("powerpc/mce: hookup memory_failure for UE errors") Reviewed-by: Mahesh Salgaonkar Reviewed-by: Nicholas Piggin Acked-by: Balbir Singh Signed-off-b

[PATCH v11 5/7] powerpc/mce: Handle UE event for memcpy_mcsafe

Reviewed-by: Nicholas Piggin Signed-off-by: Santosh Sivaraj --- arch/powerpc/include/asm/mce.h | 4 +++- arch/powerpc/kernel/mce.c | 16 arch/powerpc/kernel/mce_power.c | 15 +-- 3 files changed, 32 insertions(+), 3 deletions(-) diff --git a/arch/powerpc

[PATCH v11 6/7] powerpc/memcpy: Add memcpy_mcsafe for pmem

largely borrows from the copyuser_power7 logic and does not add the VMX optimizations, largely to keep the patch simple. If needed those optimizations can be folded in. Signed-off-by: Balbir Singh [ar...@linux.ibm.com: Added symbol export] Co-developed-by: Santosh Sivaraj Signed-off-by: Santosh

[PATCH v11 7/7] powerpc: add machine check safe copy_to_user

Use memcpy_mcsafe() implementation to define copy_to_user_mcsafe() Signed-off-by: Santosh Sivaraj --- arch/powerpc/Kconfig | 1 + arch/powerpc/include/asm/uaccess.h | 14 ++ 2 files changed, 15 insertions(+) diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig

[PATCH] kernel/watchdog: Fix watchdog_allowed_mask not used warning

Define watchdog_allowed_mask only when SOFTLOCKUP_DETECTOR is enabled. Signed-off-by: Santosh Sivaraj --- kernel/watchdog.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/kernel/watchdog.c b/kernel/watchdog.c index 7f9e7b9306fe..d365616f9ed3 100644 --- a/kernel/watchdog.c

[PATCH v8 0/7] powerpc: implement machine check safe memcpy

pmem Reza Arbab (1): powerpc/mce: Make machine_check_ue_event() static Santosh Sivaraj (4): powerpc/mce: Schedule work from irq_work extable: Add function to search only kernel exception table powerpc/mce: Handle UE event for memcpy_mcsafe powerpc: add machine check safe copy_to_user ar

[PATCH v8 2/7] powerpc/mce: Make machine_check_ue_event() static

From: Reza Arbab The function doesn't get used outside this file, so make it static. Signed-off-by: Reza Arbab Signed-off-by: Santosh Sivaraj Reviewed-by: Nicholas Piggin --- arch/powerpc/kernel/mce.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/powerpc

[PATCH v8 1/7] powerpc/mce: Schedule work from irq_work

schedule_work() cannot be called from MCE exception context as MCE can interrupt even in interrupt disabled context. fixes: 733e4a4c ("powerpc/mce: hookup memory_failure for UE errors") Signed-off-by: Santosh Sivaraj --- arch/powerpc/kernel/mce.c | 8 +--- 1 file changed, 5 insert

[PATCH v8 3/7] powerpc/mce: Fix MCE handling for huge pages

: ba41e1e1ccb9 ("powerpc/mce: Hookup derror (load/store) UE errors") Signed-off-by: Balbir Singh [ar...@linux.ibm.com: Fixup pseries_do_memory_failure()] Signed-off-by: Reza Arbab Co-developed-by: Santosh Sivaraj Signed-off-by: Santosh Sivaraj --- arch/powerpc/include/asm/mce.h |

[PATCH v8 7/7] powerpc: add machine check safe copy_to_user

Use memcpy_mcsafe() implementation to define copy_to_user_mcsafe() Signed-off-by: Santosh Sivaraj --- arch/powerpc/Kconfig | 1 + arch/powerpc/include/asm/uaccess.h | 14 ++ 2 files changed, 15 insertions(+) diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig

[PATCH v8 6/7] powerpc/mce: Handle UE event for memcpy_mcsafe

If we take a UE on one of the instructions with a fixup entry, set nip to continue execution at the fixup entry. Stop processing the event further or print it. Co-developed-by: Reza Arbab Signed-off-by: Reza Arbab Cc: Mahesh Salgaonkar Signed-off-by: Santosh Sivaraj --- arch/powerpc/include

[PATCH v8 4/7] extable: Add function to search only kernel exception table

Gleixner Cc: Ingo Molnar Cc: Nicholas Piggin Signed-off-by: Santosh Sivaraj Reviewed-by: Nicholas Piggin --- include/linux/extable.h | 2 ++ kernel/extable.c| 11 +-- 2 files changed, 11 insertions(+), 2 deletions(-) diff --git a/include/linux/extable.h b/include/linux/extable.h

[PATCH v8 5/7] powerpc/memcpy: Add memcpy_mcsafe for pmem

largely borrows from the copyuser_power7 logic and does not add the VMX optimizations, largely to keep the patch simple. If needed those optimizations can be folded in. Signed-off-by: Balbir Singh [ar...@linux.ibm.com: Added symbol export] Co-developed-by: Santosh Sivaraj Signed-off-by: Santosh

[v5 0/6] powerpc: implement machine check safe memcpy

erged] v2: * Don't set RI bit explicitly [mahesh] * Re-ordered series to get r13 workaround as the last patch --- Balbir Singh (2): powerpc/mce: Fix MCE handling for huge pages powerpc/memcpy: Add memcpy_mcsafe for pmem Reza Arbab (1): powerpc/mce: Make machine_check_ue_event() static Santosh

[v5 3/6] powerpc/memcpy: Add memcpy_mcsafe for pmem

] Signed-off-by: Santosh Sivaraj --- arch/powerpc/include/asm/string.h | 2 + arch/powerpc/lib/Makefile | 2 +- arch/powerpc/lib/memcpy_mcsafe_64.S | 239 3 files changed, 242 insertions(+), 1 deletion(-) create mode 100644 arch/powerpc/lib/memcpy_mcsafe_64

[v5 2/6] powerpc/mce: Fix MCE handling for huge pages

("powerpc/mce: Hookup derror (load/store) UE errors") Signed-off-by: Balbir Singh [ar...@linux.ibm.com: Fixup pseries_do_memory_failure()] Signed-off-by: Reza Arbab Signed-off-by: Santosh Sivaraj --- arch/powerpc/include/asm/mce.h | 3 ++- arch/powerpc/kernel/mce_power.c

[v5 1/6] powerpc/mce: Make machine_check_ue_event() static

From: Reza Arbab The function doesn't get used outside this file, so make it static. Signed-off-by: Reza Arbab Signed-off-by: Santosh Sivaraj Reviewed-by: Nicholas Piggin --- arch/powerpc/kernel/mce.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/powerpc

[v5 4/6] extable: Add function to search only kernel exception table

In real mode, the search_exception tables cannot be called because it also searches the module exception tables if entry is not found in the kernel exception tables. Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Nicholas Piggin Signed-off-by: Santosh Sivaraj --- include/linux/extable.h | 2

[v5 6/6] powerpc: add machine check safe copy_to_user

Use memcpy_mcsafe() implementation to define copy_to_user_mcsafe() Signed-off-by: Santosh Sivaraj --- arch/powerpc/Kconfig | 1 + arch/powerpc/include/asm/uaccess.h | 14 ++ 2 files changed, 15 insertions(+) diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig

[v5 5/6] powerpc/mce: Handle UE event for memcpy_mcsafe

If we take a UE on one of the instructions with a fixup entry, set nip to continue execution at the fixup entry. Stop processing the event further or print it. Based-on-patch-by: Reza Arbab Cc: Reza Arbab Cc: Mahesh Salgaonkar Signed-off-by: Santosh Sivaraj --- arch/powerpc/include/asm/mce.h

[RESEND PATCH] kernel/watchdog: Fix watchdog_allowed_mask not used warning

Define watchdog_allowed_mask only when SOFTLOCKUP_DETECTOR is enabled. Signed-off-by: Santosh Sivaraj --- Original patch is here: https://lore.kernel.org/lkml/20190807014417.9418-1-sant...@fossix.org/ A similar patch was also sent by Balamuruhan and reviewed by Petr. https://lkml.org/lkml/2020

[PATCH v7 0/7] powerpc: implement machine check safe memcpy

set RI bit explicitly [mahesh] * Re-ordered series to get r13 workaround as the last patch -- Balbir Singh (2): powerpc/mce: Fix MCE handling for huge pages powerpc/memcpy: Add memcpy_mcsafe for pmem Reza Arbab (1): powerpc/mce: Make machine_check_ue_event() static Santosh Sivaraj (4): p

[PATCH v7 1/7] powerpc/mce: Schedule work from irq_work

schedule_work() cannot be called from MCE exception context as MCE can interrupt even in interrupt disabled context. fixes: 733e4a4c ("powerpc/mce: hookup memory_failure for UE errors") Signed-off-by: Santosh Sivaraj --- arch/powerpc/kernel/mce.c | 8 +--- 1 file changed, 5 insert

[PATCH v7 5/7] powerpc/memcpy: Add memcpy_mcsafe for pmem

] Signed-off-by: Santosh Sivaraj --- arch/powerpc/include/asm/string.h | 2 + arch/powerpc/lib/Makefile | 2 +- arch/powerpc/lib/memcpy_mcsafe_64.S | 239 3 files changed, 242 insertions(+), 1 deletion(-) create mode 100644 arch/powerpc/lib/memcpy_mcsafe_64

[PATCH v7 2/7] powerpc/mce: Make machine_check_ue_event() static

From: Reza Arbab The function doesn't get used outside this file, so make it static. Signed-off-by: Reza Arbab Signed-off-by: Santosh Sivaraj Reviewed-by: Nicholas Piggin --- arch/powerpc/kernel/mce.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/powerpc

[PATCH v7 4/7] extable: Add function to search only kernel exception table

Gleixner Cc: Ingo Molnar Cc: Nicholas Piggin Signed-off-by: Santosh Sivaraj Reviewed-by: Nicholas Piggin --- include/linux/extable.h | 2 ++ kernel/extable.c| 11 +-- 2 files changed, 11 insertions(+), 2 deletions(-) diff --git a/include/linux/extable.h b/include/linux/extable.h

[PATCH v7 3/7] powerpc/mce: Fix MCE handling for huge pages

: ba41e1e1ccb9 ("powerpc/mce: Hookup derror (load/store) UE errors") Signed-off-by: Balbir Singh [ar...@linux.ibm.com: Fixup pseries_do_memory_failure()] Signed-off-by: Reza Arbab [santosh: return physical address instead of pfn; change commit log] Signed-off-by: Santosh Sivaraj --- ar

[PATCH v7 6/7] powerpc/mce: Handle UE event for memcpy_mcsafe

If we take a UE on one of the instructions with a fixup entry, set nip to continue execution at the fixup entry. Stop processing the event further or print it. Based-on-patch-by: Reza Arbab Cc: Reza Arbab Cc: Mahesh Salgaonkar Signed-off-by: Santosh Sivaraj --- arch/powerpc/include/asm/mce.h

[PATCH v7 7/7] powerpc: add machine check safe copy_to_user

Use memcpy_mcsafe() implementation to define copy_to_user_mcsafe() Signed-off-by: Santosh Sivaraj --- arch/powerpc/Kconfig | 1 + arch/powerpc/include/asm/uaccess.h | 14 ++ 2 files changed, 15 insertions(+) diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig

Re: [PATCH v2 4/8] powerpc/vdso32: inline __get_datapage()

Christophe Leroy writes: > Hi Santosh, > > Le 26/08/2019 à 07:44, Santosh Sivaraj a écrit : >> Hi Christophe, >> >> Christophe Leroy writes: >> >>> __get_datapage() is only a few instructions to retrieve the >>> address of the page where the

Re: [PATCH v2 4/8] powerpc/vdso32: inline __get_datapage()

Christophe Leroy writes: > Le 13/09/2019 à 15:31, Santosh Sivaraj a écrit : >> Christophe Leroy writes: >> >>> Hi Santosh, >>> >>> Le 26/08/2019 à 07:44, Santosh Sivaraj a écrit : >>>> Hi Christophe, >>>> >>>> Ch

Re: [PATCH v9 4/7] extable: Add function to search only kernel exception table

Balbir Singh writes: > On 12/8/19 7:22 pm, Santosh Sivaraj wrote: >> Certain architecture specific operating modes (e.g., in powerpc machine >> check handler that is unable to access vmalloc memory), the >> search_exception_tables cannot be called because it also searches th

Re: [PATCH v9 7/7] powerpc: add machine check safe copy_to_user

Hi Balbir, Balbir Singh writes: > On 12/8/19 7:22 pm, Santosh Sivaraj wrote: >> Use memcpy_mcsafe() implementation to define copy_to_user_mcsafe() >> >> Signed-off-by: Santosh Sivaraj >> --- >> arch/powerpc/Kconfig | 1 + >>

Re: [PATCH v9 6/7] powerpc/mce: Handle UE event for memcpy_mcsafe

Hi Balbir, Balbir Singh writes: > On 12/8/19 7:22 pm, Santosh Sivaraj wrote: >> If we take a UE on one of the instructions with a fixup entry, set nip >> to continue execution at the fixup entry. Stop processing the event >> further or print it. >> >> Co-develo

[PATCH v10 0/7] powerpc: implement machine check safe memcpy

last patch -- Balbir Singh (3): powerpc/mce: Fix MCE handling for huge pages powerpc/memcpy: Add memcpy_mcsafe for pmem powerpc/mce: Handle UE event for memcpy_mcsafe Reza Arbab (1): powerpc/mce: Make machine_check_ue_event() static Santosh Sivaraj (3): powerpc/mce: Schedule work fro

[PATCH v10 2/7] powerpc/mce: Fix MCE handling for huge pages

: ba41e1e1ccb9 ("powerpc/mce: Hookup derror (load/store) UE errors") Signed-off-by: Balbir Singh [ar...@linux.ibm.com: Fixup pseries_do_memory_failure()] Signed-off-by: Reza Arbab Co-developed-by: Santosh Sivaraj Signed-off-by: Santosh Sivaraj Tested-by: Mahesh Salgaonkar Cc: sta...@vger.

[PATCH v10 1/7] powerpc/mce: Schedule work from irq_work

schedule_work() cannot be called from MCE exception context as MCE can interrupt even in interrupt disabled context. fixes: 733e4a4c ("powerpc/mce: hookup memory_failure for UE errors") Suggested-by: Mahesh Salgaonkar Signed-off-by: Santosh Sivaraj Reviewed-by: Mahesh Salgaon

[PATCH v10 3/7] powerpc/mce: Make machine_check_ue_event() static

From: Reza Arbab The function doesn't get used outside this file, so make it static. Signed-off-by: Reza Arbab Signed-off-by: Santosh Sivaraj Reviewed-by: Nicholas Piggin --- arch/powerpc/kernel/mce.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/powerpc

[PATCH v10 4/7] extable: Add function to search only kernel exception table

Gleixner Cc: Ingo Molnar Cc: Nicholas Piggin Signed-off-by: Santosh Sivaraj Reviewed-by: Nicholas Piggin --- include/linux/extable.h | 2 ++ kernel/extable.c| 11 +-- 2 files changed, 11 insertions(+), 2 deletions(-) diff --git a/include/linux/extable.h b/include/linux/extable.h

[PATCH v10 6/7] powerpc/mce: Handle UE event for memcpy_mcsafe

From: Balbir Singh If we take a UE on one of the instructions with a fixup entry, set nip to continue execution at the fixup entry. Stop processing the event further or print it. Co-developed-by: Reza Arbab Signed-off-by: Reza Arbab Signed-off-by: Balbir Singh Signed-off-by: Santosh Sivaraj

[PATCH v10 7/7] powerpc: add machine check safe copy_to_user

Use memcpy_mcsafe() implementation to define copy_to_user_mcsafe() Signed-off-by: Santosh Sivaraj --- arch/powerpc/Kconfig | 1 + arch/powerpc/include/asm/uaccess.h | 14 ++ 2 files changed, 15 insertions(+) diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig

[PATCH v10 5/7] powerpc/memcpy: Add memcpy_mcsafe for pmem

largely borrows from the copyuser_power7 logic and does not add the VMX optimizations, largely to keep the patch simple. If needed those optimizations can be folded in. Signed-off-by: Balbir Singh [ar...@linux.ibm.com: Added symbol export] Co-developed-by: Santosh Sivaraj Signed-off-by: Santosh

Re: [PATCH v8 3/7] powerpc/mce: Fix MCE handling for huge pages

Mahesh Jagannath Salgaonkar writes: > On 8/7/19 8:26 PM, Santosh Sivaraj wrote: >> From: Balbir Singh >> >> The current code would fail on huge pages addresses, since the shift would >> be incorrect. Use the correct page shift value returned by >> __find_linux_

Re: [PATCH v8 7/7] powerpc: add machine check safe copy_to_user

Michael Ellerman writes: > Santosh Sivaraj writes: >> Use memcpy_mcsafe() implementation to define copy_to_user_mcsafe() >> >> Signed-off-by: Santosh Sivaraj >> --- >> arch/powerpc/Kconfig | 1 + >> arch/powerpc/include/asm/uaccess.h | 14

[PATCH v9 0/7] powerpc: implement machine check safe memcpy

owerpc/mce: Fix MCE handling for huge pages powerpc/memcpy: Add memcpy_mcsafe for pmem Reza Arbab (1): powerpc/mce: Make machine_check_ue_event() static Santosh Sivaraj (4): powerpc/mce: Schedule work from irq_work extable: Add function to search only kernel exception table powerpc/mce:

[PATCH v9 4/7] extable: Add function to search only kernel exception table

Gleixner Cc: Ingo Molnar Cc: Nicholas Piggin Signed-off-by: Santosh Sivaraj Reviewed-by: Nicholas Piggin --- include/linux/extable.h | 2 ++ kernel/extable.c| 11 +-- 2 files changed, 11 insertions(+), 2 deletions(-) diff --git a/include/linux/extable.h b/include/linux/extable.h

[PATCH v9 2/7] powerpc/mce: Fix MCE handling for huge pages

: ba41e1e1ccb9 ("powerpc/mce: Hookup derror (load/store) UE errors") Signed-off-by: Balbir Singh [ar...@linux.ibm.com: Fixup pseries_do_memory_failure()] Signed-off-by: Reza Arbab Co-developed-by: Santosh Sivaraj Signed-off-by: Santosh Sivaraj Tested-by: Mahesh Salgaonkar Cc: sta...@vger.

[PATCH v9 7/7] powerpc: add machine check safe copy_to_user

Use memcpy_mcsafe() implementation to define copy_to_user_mcsafe() Signed-off-by: Santosh Sivaraj --- arch/powerpc/Kconfig | 1 + arch/powerpc/include/asm/uaccess.h | 14 ++ 2 files changed, 15 insertions(+) diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig

[PATCH v9 3/7] powerpc/mce: Make machine_check_ue_event() static

From: Reza Arbab The function doesn't get used outside this file, so make it static. Signed-off-by: Reza Arbab Signed-off-by: Santosh Sivaraj Reviewed-by: Nicholas Piggin --- arch/powerpc/kernel/mce.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/powerpc

[PATCH v9 1/7] powerpc/mce: Schedule work from irq_work

schedule_work() cannot be called from MCE exception context as MCE can interrupt even in interrupt disabled context. fixes: 733e4a4c ("powerpc/mce: hookup memory_failure for UE errors") Suggested-by: Mahesh Salgaonkar Signed-off-by: Santosh Sivaraj Cc: sta...@vger.kernel.org # v4.15+

[PATCH v9 6/7] powerpc/mce: Handle UE event for memcpy_mcsafe

If we take a UE on one of the instructions with a fixup entry, set nip to continue execution at the fixup entry. Stop processing the event further or print it. Co-developed-by: Reza Arbab Signed-off-by: Reza Arbab Cc: Mahesh Salgaonkar Signed-off-by: Santosh Sivaraj --- arch/powerpc/include

[PATCH v9 5/7] powerpc/memcpy: Add memcpy_mcsafe for pmem

largely borrows from the copyuser_power7 logic and does not add the VMX optimizations, largely to keep the patch simple. If needed those optimizations can be folded in. Signed-off-by: Balbir Singh [ar...@linux.ibm.com: Added symbol export] Co-developed-by: Santosh Sivaraj Signed-off-by: Santosh

[v6 0/6] powerpc: implement machine check safe memcpy

to get r13 workaround as the last patch -- Balbir Singh (2): powerpc/mce: Fix MCE handling for huge pages powerpc/memcpy: Add memcpy_mcsafe for pmem Reza Arbab (1): powerpc/mce: Make machine_check_ue_event() static Santosh Sivaraj (3): extable: Add function to search only kernel exception table

[v6 1/6] powerpc/mce: Make machine_check_ue_event() static

From: Reza Arbab The function doesn't get used outside this file, so make it static. Signed-off-by: Reza Arbab Signed-off-by: Santosh Sivaraj Reviewed-by: Nicholas Piggin --- arch/powerpc/kernel/mce.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/powerpc

[v6 2/6] powerpc/mce: Fix MCE handling for huge pages

: ba41e1e1ccb9 ("powerpc/mce: Hookup derror (load/store) UE errors") Signed-off-by: Balbir Singh [ar...@linux.ibm.com: Fixup pseries_do_memory_failure()] Signed-off-by: Reza Arbab [santosh: return physical address instead of pfn; change commit log] Signed-off-by: Santosh Sivaraj --- ar

[v6 5/6] powerpc/mce: Handle UE event for memcpy_mcsafe

If we take a UE on one of the instructions with a fixup entry, set nip to continue execution at the fixup entry. Stop processing the event further or print it. Based-on-patch-by: Reza Arbab Cc: Reza Arbab Cc: Mahesh Salgaonkar Signed-off-by: Santosh Sivaraj --- arch/powerpc/include/asm/mce.h

[v6 6/6] powerpc: add machine check safe copy_to_user

Use memcpy_mcsafe() implementation to define copy_to_user_mcsafe() Signed-off-by: Santosh Sivaraj --- arch/powerpc/Kconfig | 1 + arch/powerpc/include/asm/uaccess.h | 14 ++ 2 files changed, 15 insertions(+) diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig

[v6 3/6] extable: Add function to search only kernel exception table

Gleixner Cc: Ingo Molnar Cc: Nicholas Piggin Signed-off-by: Santosh Sivaraj Reviewed-by: Nicholas Piggin --- include/linux/extable.h | 2 ++ kernel/extable.c| 11 +-- 2 files changed, 11 insertions(+), 2 deletions(-) diff --git a/include/linux/extable.h b/include/linux/extable.h

[v6 4/6] powerpc/memcpy: Add memcpy_mcsafe for pmem

] Signed-off-by: Santosh Sivaraj --- arch/powerpc/include/asm/string.h | 2 + arch/powerpc/lib/Makefile | 2 +- arch/powerpc/lib/memcpy_mcsafe_64.S | 239 3 files changed, 242 insertions(+), 1 deletion(-) create mode 100644 arch/powerpc/lib/memcpy_mcsafe_64

Re: [PATCH] ndtest: Remove redundant NULL check

Hi Ira, Ira Weiny writes: > On Mon, Mar 22, 2021 at 06:00:40PM +0800, Jiapeng Chong wrote: >> Fix the following coccicheck warnings: >> >> ./tools/testing/nvdimm/test/ndtest.c:491:2-7: WARNING: NULL check before >> some freeing functions is not needed. > > I don't think there is anything

Re: [PATCH -next] tools/testing/nvdimm: Make symbol '__nfit_test_ioremap' static

Hi Zou, Zou Wei writes: > The sparse tool complains as follows: > > tools/testing/nvdimm/test/iomap.c:65:14: warning: > symbol '__nfit_test_ioremap' was not declared. Should it be static? > > This symbol is not used outside of security.c, so this s/security.c/iomap.c/ Thanks, Santosh >

Re: [PATCH] libnvdimm.h: Remove duplicate struct declaration

Hi Ira, Ira Weiny writes: > On Mon, Apr 19, 2021 at 07:27:25PM +0800, Wan Jiabing wrote: >> struct device is declared at 133rd line. >> The declaration here is unnecessary. Remove it. >> >> Signed-off-by: Wan Jiabing >> --- >> include/linux/libnvdimm.h | 1 - >> 1 file changed, 1 deletion(-)