# git rev-parse -q --verify d7e23b887f67178c4f840781be7a6aa6aeb52ab1^{commit}
d7e23b887f67178c4f840781be7a6aa6aeb52ab1
already have revision, skipping fetch
# git checkout -q -f -B kisskb d7e23b887f67178c4f840781be7a6aa6aeb52ab1
# git clean -qxdf
# < git log -1
# commit d7e23b887f67178c4f840781be7a6aa6aeb52ab1
# Author: Christophe Leroy <christophe.leroy@c-s.fr>
# Date:   Wed Jul 31 06:01:42 2019 +0000
# 
#     powerpc/kasan: fix early boot failure on PPC32
#     
#     Due to commit 4a6d8cf90017 ("powerpc/mm: don't use pte_alloc_kernel()
#     until slab is available on PPC32"), pte_alloc_kernel() cannot be used
#     during early KASAN init.
#     
#     Fix it by using memblock_alloc() instead.
#     
#     Fixes: 2edb16efc899 ("powerpc/32: Add KASAN support")
#     Cc: stable@vger.kernel.org # v5.2+
#     Reported-by: Erhard F. <erhard_f@mailbox.org>
#     Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://lore.kernel.org/r/da89670093651437f27d2975224712e0a130b055.1564552796.git.christophe.leroy@c-s.fr
# < /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 d7e23b887f67178c4f840781be7a6aa6aeb52ab1
# < make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-fixes_83xx_asp8347_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  83xx/asp8347_defconfig
# make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-fixes_83xx_asp8347_defconfig_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:1676:17: warning: 'oldval' may be used uninitialized in this function [-Wmaybe-uninitialized]
   return oldval == cmparg;
                 ^
/kisskb/src/kernel/futex.c:1651:6: note: 'oldval' was declared here
  int oldval, ret;
      ^
INFO: Uncompressed kernel (size 0x58741c) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x600000)
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_83xx_asp8347_defconfig_powerpc-gcc5
# Build took: 0:00:52.762597