# git rev-parse -q --verify f4a7996d700589ff79b521b62ef410cf3fdbe7d6^{commit}
f4a7996d700589ff79b521b62ef410cf3fdbe7d6
already have revision, skipping fetch
# git checkout -q -f -B kisskb f4a7996d700589ff79b521b62ef410cf3fdbe7d6
# git clean -qxdf
# < git log -1
# commit f4a7996d700589ff79b521b62ef410cf3fdbe7d6
# Author: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
# Date:   Tue Jul 2 16:28:36 2019 +0530
# 
#     powerpc/powernv/idle: Fix restore of SPRN_LDBAR for POWER9 stop state.
#     
#     commit 10d91611f426 ("powerpc/64s: Reimplement book3s idle code in C")
#     reimplemented book3S code to pltform/powernv/idle.c. But when doing so
#     missed to add the per-thread LDBAR update in the core_woken path of
#     the power9_idle_stop(). Patch fixes the same.
#     
#     Fixes: 10d91611f426 ("powerpc/64s: Reimplement book3s idle code in C")
#     Cc: stable@vger.kernel.org # v5.2+
#     Signed-off-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
#     Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
#     Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
#     Link: https://lore.kernel.org/r/20190702105836.26695-1-maddy@linux.vnet.ibm.com
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 f4a7996d700589ff79b521b62ef410cf3fdbe7d6
# < make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-next_ppc64_defconfig+NO_HUGETLB_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  ppc64_defconfig
# Added to kconfig CONFIG_HUGETLBFS=n
# yes \n | make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-next_ppc64_defconfig+NO_HUGETLB_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  oldconfig
yes: standard output: Broken pipe
# make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-next_ppc64_defconfig+NO_HUGETLB_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
/kisskb/src/kernel/futex.c: In function 'do_futex':
/kisskb/src/kernel/futex.c:1658:17: warning: 'oldval' may be used uninitialized in this function [-Wmaybe-uninitialized]
   return oldval == cmparg;
                 ^
/kisskb/src/kernel/futex.c:1633:6: note: 'oldval' was declared here
  int oldval, ret;
      ^
Completed OK
# rm -rf /kisskb/build/powerpc-next_ppc64_defconfig+NO_HUGETLB_powerpc-gcc5
# Build took: 0:01:49.047806