# git rev-parse -q --verify 510c9788991c58827373bca719d8cffa4d65f846^{commit}
510c9788991c58827373bca719d8cffa4d65f846
already have revision, skipping fetch
# git checkout -q -f -B kisskb 510c9788991c58827373bca719d8cffa4d65f846
# git clean -qxdf
# < git log -1
# commit 510c9788991c58827373bca719d8cffa4d65f846
# Merge: 07c4b9e9f71a 3d519d6d388b
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sat Dec 14 16:10:22 2019 -0800
# 
#     Merge tag 'Wimplicit-fallthrough-5.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux
#     
#     Pull fall through fix from Gustavo Silva:
#      "Fix compile error on sh by marking expected switch fall-through"
#     
#     * tag 'Wimplicit-fallthrough-5.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux:
#       sh: kgdb: Mark expected switch fall-throughs
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/s390x-linux/bin/s390x-linux-gcc --version
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/s390x-linux/bin/s390x-linux-ld --version
# < git log --format=%s --max-count=1 510c9788991c58827373bca719d8cffa4d65f846
# < make -s -j 48 ARCH=s390 O=/kisskb/build/linus_s390-allnoconfig_s390x CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/s390x-linux/bin/s390x-linux-  allnoconfig
# make -s -j 48 ARCH=s390 O=/kisskb/build/linus_s390-allnoconfig_s390x CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/s390x-linux/bin/s390x-linux-  
/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/s390/kernel/unwind_bc.c: In function '__unwind_start':
/kisskb/src/arch/s390/kernel/unwind_bc.c:161:12: warning: 'ip' may be used uninitialized in this function [-Wuninitialized]
Completed OK
# rm -rf /kisskb/build/linus_s390-allnoconfig_s390x
# Build took: 0:00:16.659938