# git rev-parse -q --verify 5bdd9ad875b6edf213f54ec3986ed9e8640c5cf9^{commit}
# git fetch -q -n -f git://fs.ozlabs.ibm.com/kernel/linus master
# git rev-parse -q --verify 5bdd9ad875b6edf213f54ec3986ed9e8640c5cf9^{commit}
5bdd9ad875b6edf213f54ec3986ed9e8640c5cf9
# git checkout -q -f -B kisskb 5bdd9ad875b6edf213f54ec3986ed9e8640c5cf9
# git clean -qxdf
# < git log -1
# commit 5bdd9ad875b6edf213f54ec3986ed9e8640c5cf9
# Merge: f49aa1de9836 4a33d4f17a19
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Mon May 20 17:22:17 2019 -0700
# 
#     Merge tag 'kbuild-fixes-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
#     
#     Pull Kbuild fixes from Masahiro Yamada:
#     
#      - remove unused cc-ldoption
#     
#      - do not check the name uniquness of builtin modules to avoid false
#        positives
#     
#     * tag 'kbuild-fixes-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
#       kbuild: do not check name uniqueness of builtin modules
#       kbuild: drop support for cc-ldoption
# < /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 5bdd9ad875b6edf213f54ec3986ed9e8640c5cf9
# < make -s -j 24 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 24 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/arch/s390/kernel/machine_kexec.c:146:22: warning: 'do_start_kdump' defined but not used [-Wunused-function]
/kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/kisskb/src/kernel/printk/printk.c:193:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
Completed OK
# rm -rf /kisskb/build/linus_s390-allnoconfig_s390x
# Build took: 0:00:16.179057