# git rev-parse -q --verify 4c25df5640ae6e4491ee2c50d3f70c1559ef037d^{commit}
# git fetch -q -n -f git://gitlab.ozlabs.ibm.com/linuxppc/linux.git next-test
warning: The last gc run reported the following. Please correct the root cause
and remove .git/gc.log.
Automatic cleanup will not be performed until the file is removed.

warning: There are too many unreachable loose objects; run 'git prune' to remove them.

# git rev-parse -q --verify 4c25df5640ae6e4491ee2c50d3f70c1559ef037d^{commit}
4c25df5640ae6e4491ee2c50d3f70c1559ef037d
# git checkout -q -f -B kisskb 4c25df5640ae6e4491ee2c50d3f70c1559ef037d
# git clean -qxdf
# < git log -1
# commit 4c25df5640ae6e4491ee2c50d3f70c1559ef037d
# Merge: 34b5a946a954 3d7dfd632f9b
# Author: Michael Ellerman <mpe@ellerman.id.au>
# Date:   Sat Feb 1 21:47:17 2020 +1100
# 
#     Merge branch 'topic/user-access-begin' into next
#     
#     Merge the user_access_begin() series from Christophe. This is based on
#     a commit from Linus that went into v5.5-rc7.
# < /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 4c25df5640ae6e4491ee2c50d3f70c1559ef037d
# < make -s -j 48 ARCH=x86_64 O=/kisskb/build/powerpc-next_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 48 ARCH=x86_64 O=/kisskb/build/powerpc-next_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/tools/objtool
/kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/kisskb/src/kernel/printk/printk.c:204:16: 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:665:16: warning: 'gapstart' may be used uninitialized in this function [-Wuninitialized]
Completed OK
# rm -rf /kisskb/build/powerpc-next_x86_64-allnoconfig_x86_64-gcc4.6
# Build took: 0:02:01.301172