# git rev-parse -q --verify 4557ac6b344b8cdf948ff8b007e8e1de34832f2e^{commit}
4557ac6b344b8cdf948ff8b007e8e1de34832f2e
already have revision, skipping fetch
# git checkout -q -f -B kisskb 4557ac6b344b8cdf948ff8b007e8e1de34832f2e
# git clean -qxdf
# < git log -1
# commit 4557ac6b344b8cdf948ff8b007e8e1de34832f2e
# Author: Nicholas Piggin <npiggin@gmail.com>
# Date:   Wed Jul 8 17:49:42 2020 +1000
# 
#     powerpc/64s/exception: Fix 0x1500 interrupt handler crash
#     
#     A typo caused the interrupt handler to branch immediately to the
#     common "unknown interrupt" handler and skip the special case test for
#     denormal cause.
#     
#     This does not affect KVM softpatch handling (e.g., for POWER9 TM
#     assist) because the KVM test was moved to common code by commit
#     9600f261acaa ("powerpc/64s/exception: Move KVM test to common code")
#     just before this bug was introduced.
#     
#     Fixes: 3f7fbd97d07d ("powerpc/64s/exception: Clean up SRR specifiers")
#     Reported-by: Paul Menzel <pmenzel@molgen.mpg.de>
#     Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
#     Tested-by: Paul Menzel <pmenzel@molgen.mpg.de>
#     [mpe: Split selftest into a separate patch]
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://lore.kernel.org/r/20200708074942.1713396-1-npiggin@gmail.com
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/ia64-linux/bin/ia64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/ia64-linux/bin/ia64-linux-ld --version
# < git log --format=%s --max-count=1 4557ac6b344b8cdf948ff8b007e8e1de34832f2e
# < make -s -j 48 ARCH=ia64 O=/kisskb/build/powerpc-fixes_ia64-defconfig_ia64-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/ia64-linux/bin/ia64-linux-  defconfig
# < make -s -j 48 ARCH=ia64 O=/kisskb/build/powerpc-fixes_ia64-defconfig_ia64-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/ia64-linux/bin/ia64-linux-  help
# make -s -j 48 ARCH=ia64 O=/kisskb/build/powerpc-fixes_ia64-defconfig_ia64-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/ia64-linux/bin/ia64-linux-  olddefconfig
# make -s -j 48 ARCH=ia64 O=/kisskb/build/powerpc-fixes_ia64-defconfig_ia64-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/ia64-linux/bin/ia64-linux-  
<stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp]
In file included from /kisskb/src/arch/ia64/include/uapi/asm/intrinsics.h:22:0,
                 from /kisskb/src/arch/ia64/include/asm/intrinsics.h:11,
                 from /kisskb/src/arch/ia64/include/asm/bitops.h:19,
                 from /kisskb/src/include/linux/bitops.h:29,
                 from /kisskb/src/include/linux/kernel.h:12,
                 from /kisskb/src/include/linux/list.h:9,
                 from /kisskb/src/include/linux/preempt.h:11,
                 from /kisskb/src/include/linux/spinlock.h:51,
                 from /kisskb/src/include/linux/seqlock.h:36,
                 from /kisskb/src/include/linux/time.h:6,
                 from /kisskb/src/fs/nfs/read.c:11:
/kisskb/src/fs/nfs/read.c: In function 'nfs_read_completion':
/kisskb/src/arch/ia64/include/uapi/asm/cmpxchg.h:57:2: warning: value computed is not used [-Wunused-value]
 ((__typeof__(*(ptr))) __xchg((unsigned long) (x), (ptr), sizeof(*(ptr))))
  ^
/kisskb/src/fs/nfs/read.c:196:5: note: in expansion of macro 'xchg'
     xchg(&nfs_req_openctx(req)->error, error);
     ^
/kisskb/src/fs/nfs/read.c: In function 'nfs_readpage':
/kisskb/src/arch/ia64/include/uapi/asm/cmpxchg.h:57:2: warning: value computed is not used [-Wunused-value]
 ((__typeof__(*(ptr))) __xchg((unsigned long) (x), (ptr), sizeof(*(ptr))))
  ^
/kisskb/src/fs/nfs/read.c:355:2: note: in expansion of macro 'xchg'
  xchg(&ctx->error, 0);
  ^
No errors detected in 22248 functions.
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_ia64-defconfig_ia64-gcc4.9
# Build took: 0:02:17.455466