# git rev-parse -q --verify a075f23dd4b036ebaf918b3af477aa1f249ddfa0^{commit}
a075f23dd4b036ebaf918b3af477aa1f249ddfa0
already have revision, skipping fetch
# git checkout -q -f -B kisskb a075f23dd4b036ebaf918b3af477aa1f249ddfa0
# git clean -qxdf
# < git log -1
# commit a075f23dd4b036ebaf918b3af477aa1f249ddfa0
# Merge: 93d1a05ea6b2 4cea9037f82a
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sat Jan 25 10:55:24 2020 -0800
# 
#     Merge tag 'for-5.5-rc8-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
#     
#     Pull btrfs fix from David Sterba:
#      "Here's a last minute fix for a regression introduced in this
#       development cycle.
#     
#       There's a small chance of a silent corruption when device replace and
#       NOCOW data writes happen at the same time in one block group. Metadata
#       or COW data writes are unaffected.
#     
#       The extra fixup patch is there to silence an unnecessary warning"
#     
#     * tag 'for-5.5-rc8-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
#       btrfs: dev-replace: remove warning for unknown return codes when finished
#       btrfs: scrub: Require mandatory block group RO for dev-replace
# < /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 a075f23dd4b036ebaf918b3af477aa1f249ddfa0
# < 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.

WARNING: 2 bad relocations
c000000001637178 R_PPC64_ADDR64    _binary__btf_vmlinux_bin_start
c000000001637180 R_PPC64_ADDR64    _binary__btf_vmlinux_bin_end
Completed OK
# rm -rf /kisskb/build/linus_ppc64le_defconfig_ppc64le-gcc5
# Build took: 0:02:46.333404