# git rev-parse -q --verify 30fe0d07fd7b27d41d9b31a224052cc4e910947a^{commit}
30fe0d07fd7b27d41d9b31a224052cc4e910947a
already have revision, skipping fetch
# git checkout -q -f -B kisskb 30fe0d07fd7b27d41d9b31a224052cc4e910947a
# git clean -qxdf
# < git log -1
# commit 30fe0d07fd7b27d41d9b31a224052cc4e910947a
# Merge: 0b25d458035d e7a04894c766
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Fri Mar 6 14:56:46 2020 -0600
# 
#     Merge tag 'for-5.6-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
#     
#     Pull btrfs fix from David Sterba:
#      "One fixup for DIO when in use with the new checksums, a missed case
#       where the checksum size was still assuming u32"
#     
#     * tag 'for-5.6-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
#       btrfs: fix RAID direct I/O reads with alternate csums
# < /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 30fe0d07fd7b27d41d9b31a224052cc4e910947a
# < make -s -j 80 ARCH=powerpc O=/kisskb/build/linus_powernv_defconfig+THIN_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  powernv_defconfig
# Added to kconfig CONFIG_USE_THIN_ARCHIVES=y
# < make -s -j 80 ARCH=powerpc O=/kisskb/build/linus_powernv_defconfig+THIN_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  help
# make -s -j 80 ARCH=powerpc O=/kisskb/build/linus_powernv_defconfig+THIN_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  olddefconfig
# make -s -j 80 ARCH=powerpc O=/kisskb/build/linus_powernv_defconfig+THIN_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
WARNING: vmlinux.o(.text+0x2fc8): 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_powernv_defconfig+THIN_powerpc-gcc5
# Build took: 0:03:00.834392