# git rev-parse -q --verify 7de7de7ca0ae0fc70515ee3154af33af75edae2c^{commit}
7de7de7ca0ae0fc70515ee3154af33af75edae2c
already have revision, skipping fetch
# git checkout -q -f -B kisskb 7de7de7ca0ae0fc70515ee3154af33af75edae2c
# git clean -qxdf
# < git log -1
# commit 7de7de7ca0ae0fc70515ee3154af33af75edae2c
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sun Dec 15 19:50:23 2019 -0800
# 
#     Fix root mounting with no mount options
#     
#     The "trivial conversion" in commit cccaa5e33525 ("init: use do_mount()
#     instead of ksys_mount()") was totally broken, since it didn't handle the
#     case of a NULL mount data pointer.  And while I had "tested" it (and
#     presumably Dominik had too) that bug was hidden by me having options.
#     
#     Cc: Dominik Brodowski <linux@dominikbrodowski.net>
#     Cc: Arnd Bergmann <arnd@arndb.de>
#     Reported-by: Ondřej Jirman <megi@xff.cz>
#     Reported-by: Guenter Roeck <linux@roeck-us.net>
#     Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
#     Reported-and-tested-by: Borislav Petkov <bp@suse.de>
#     Tested-by: Chris Clayton <chris2553@googlemail.com>
#     Tested-by: Eric Biggers <ebiggers@kernel.org>
#     Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
#     Tested-by: Guido Günther <agx@sigxcpu.org>
#     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 7de7de7ca0ae0fc70515ee3154af33af75edae2c
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/linus_pseries_le_defconfig_ppc64le-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  pseries_le_defconfig
# make -s -j 48 ARCH=powerpc O=/kisskb/build/linus_pseries_le_defconfig_ppc64le-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
WARNING: vmlinux.o(.text+0x31dc): 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_pseries_le_defconfig_ppc64le-gcc5
# Build took: 0:02:47.719239