# git rev-parse -q --verify cd81acc600a9684ea4b4d25a47900d38a3890eab^{commit}
cd81acc600a9684ea4b4d25a47900d38a3890eab
already have revision, skipping fetch
# git checkout -q -f -B kisskb cd81acc600a9684ea4b4d25a47900d38a3890eab
# git clean -qxdf
# < git log -1
# commit cd81acc600a9684ea4b4d25a47900d38a3890eab
# Author: Nicholas Piggin <npiggin@gmail.com>
# Date:   Tue Nov 17 23:56:17 2020 +1000
# 
#     powerpc/64s/exception: KVM Fix for host DSI being taken in HPT guest MMU context
#     
#     Commit 2284ffea8f0c ("powerpc/64s/exception: Only test KVM in SRR
#     interrupts when PR KVM is supported") removed KVM guest tests from
#     interrupts that do not set HV=1, when PR-KVM is not configured.
#     
#     This is wrong for HV-KVM HPT guest MMIO emulation case which attempts
#     to load the faulting instruction word with MSR[DR]=1 and MSR[HV]=1 with
#     the guest MMU context loaded. This can cause host DSI, DSLB interrupts
#     which must test for KVM guest. Restore this and add a comment.
#     
#     Fixes: 2284ffea8f0c ("powerpc/64s/exception: Only test KVM in SRR interrupts when PR KVM is supported")
#     Cc: stable@vger.kernel.org # v5.7+
#     Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://lore.kernel.org/r/20201117135617.3521127-1-npiggin@gmail.com
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 cd81acc600a9684ea4b4d25a47900d38a3890eab
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_pseries_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  pseries_defconfig
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_pseries_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  help
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_pseries_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  olddefconfig
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_pseries_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  
/kisskb/src/fs/btrfs/tree-checker.c: In function 'check_root_item':
/kisskb/src/fs/btrfs/tree-checker.c:1056:9: warning: missing braces around initializer [-Wmissing-braces]
  struct btrfs_root_item ri = { 0 };
         ^
/kisskb/src/fs/btrfs/tree-checker.c:1056:9: warning: (near initialization for 'ri.inode') [-Wmissing-braces]
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_pseries_defconfig_powerpc-gcc4.9
# Build took: 0:03:00.031911