# git rev-parse -q --verify bc4188a2f56e821ea057aca6bf444e138d06c252^{commit}
bc4188a2f56e821ea057aca6bf444e138d06c252
already have revision, skipping fetch
# git checkout -q -f -B kisskb bc4188a2f56e821ea057aca6bf444e138d06c252
# git clean -qxdf
# < git log -1
# commit bc4188a2f56e821ea057aca6bf444e138d06c252
# Author: Nicholas Piggin <npiggin@gmail.com>
# Date:   Fri Jul 16 12:43:10 2021 +1000
# 
#     KVM: PPC: Fix kvm_arch_vcpu_ioctl vcpu_load leak
#     
#     vcpu_put is not called if the user copy fails. This can result in preempt
#     notifier corruption and crashes, among other issues.
#     
#     Fixes: b3cebfe8c1ca ("KVM: PPC: Move vcpu_load/vcpu_put down to each ioctl case in kvm_arch_vcpu_ioctl")
#     Reported-by: Alexey Kardashevskiy <aik@ozlabs.ru>
#     Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://lore.kernel.org/r/20210716024310.164448-2-npiggin@gmail.com
# < /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-gcc --version
# < /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-ld --version
# < git log --format=%s --max-count=1 bc4188a2f56e821ea057aca6bf444e138d06c252
# < make -s -j 48 ARCH=arm64 O=/kisskb/build/powerpc-fixes_arm64-defconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  defconfig
# < make -s -j 48 ARCH=arm64 O=/kisskb/build/powerpc-fixes_arm64-defconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  help
# make -s -j 48 ARCH=arm64 O=/kisskb/build/powerpc-fixes_arm64-defconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  olddefconfig
# make -s -j 48 ARCH=arm64 O=/kisskb/build/powerpc-fixes_arm64-defconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  
/kisskb/src/arch/arm64/Makefile:25: ld does not support --fix-cortex-a53-843419; kernel may be susceptible to erratum
/kisskb/src/arch/arm64/Makefile:33: LSE atomics not supported by binutils
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_arm64-defconfig_arm64-gcc5.4
# Build took: 0:05:41.708974