# git rev-parse -q --verify d7e23b887f67178c4f840781be7a6aa6aeb52ab1^{commit}
# git fetch -q -n -f git://gitlab.ozlabs.ibm.com/linuxppc/linux.git fixes-test
# git rev-parse -q --verify d7e23b887f67178c4f840781be7a6aa6aeb52ab1^{commit}
d7e23b887f67178c4f840781be7a6aa6aeb52ab1
# 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/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux-gcc --version
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux-ld --version
# < git log --format=%s --max-count=1 d7e23b887f67178c4f840781be7a6aa6aeb52ab1
# < make -s -j 80 ARCH=x86_64 O=/kisskb/build/powerpc-fixes_x86_64-allnoconfig_x86_64-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux-  allnoconfig
# make -s -j 80 ARCH=x86_64 O=/kisskb/build/powerpc-fixes_x86_64-allnoconfig_x86_64-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux-  
/kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/kisskb/src/kernel/printk/printk.c:194:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/arch/x86/kernel/apic/io_apic.c: In function 'mp_map_pin_to_irq':
/kisskb/src/arch/x86/kernel/apic/io_apic.c:1037:6: warning: 'irq' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/arch/x86/kernel/e820.c: In function 'e820__setup_pci_gap':
/kisskb/src/arch/x86/kernel/e820.c:664:16: warning: 'gapstart' may be used uninitialized in this function [-Wuninitialized]
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_x86_64-allnoconfig_x86_64-gcc4.6
# Build took: 0:01:12.516556