# git rev-parse -q --verify 722e6f500ac72d0d43955710738a24fd957607a4^{commit}
722e6f500ac72d0d43955710738a24fd957607a4
already have revision, skipping fetch
# git checkout -q -f -B kisskb 722e6f500ac72d0d43955710738a24fd957607a4
# git clean -qxdf
# < git log -1
# commit 722e6f500ac72d0d43955710738a24fd957607a4
# Author: Tony Luck <tony.luck@intel.com>
# Date:   Tue Sep 24 11:45:34 2019 -0700
# 
#     ia64: Fix some warnings introduced in merge window
#     
#     Fix
#     
#       arch/ia64/kernel/irq_ia64.c:586:1: warning: no return statement in function returning non-void [-Wreturn-type]
#       arch/ia64/mm/contig.c:111:6: warning: unused variable 'rc' [-Wunused-variable]
#       arch/ia64/mm/discontig.c:189:39: warning: unused variable 'rc' [-Wunused-variable]
#     
#     Signed-off-by: Tony Luck <tony.luck@intel.com>
#     Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
# < /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 722e6f500ac72d0d43955710738a24fd957607a4
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/linus_ppc64le_defconfig_ppc64le-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  ppc64le_defconfig
# make -s -j 48 ARCH=powerpc O=/kisskb/build/linus_ppc64le_defconfig_ppc64le-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
WARNING: vmlinux.o(.text+0x31e4): Section mismatch in reference from the variable __boot_from_prom to the function .init.text:prom_init()
The function __boot_from_prom() references
the function __init prom_init().
This is often because __boot_from_prom lacks a __init 
annotation or the annotation of prom_init is wrong.

WARNING: vmlinux.o(.text+0x33c8): Section mismatch in reference from the variable start_here_common to the function .init.text:start_kernel()
The function start_here_common() references
the function __init start_kernel().
This is often because start_here_common lacks a __init 
annotation or the annotation of start_kernel is wrong.

Completed OK
# rm -rf /kisskb/build/linus_ppc64le_defconfig_ppc64le-gcc5
# Build took: 0:02:56.401967