# git rev-parse -q --verify c5b440951a19fdd068090d38dcbe72ea28e5e0d0^{commit}
# git fetch -q -n -f git://fs.ozlabs.ibm.com/kernel/linus master
# git rev-parse -q --verify c5b440951a19fdd068090d38dcbe72ea28e5e0d0^{commit}
c5b440951a19fdd068090d38dcbe72ea28e5e0d0
# git checkout -q -f -B kisskb c5b440951a19fdd068090d38dcbe72ea28e5e0d0
# git clean -qxdf
# < git log -1
# commit c5b440951a19fdd068090d38dcbe72ea28e5e0d0
# Merge: 862f0a3227b3 0c97bf863efc
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sun May 26 13:49:40 2019 -0700
# 
#     Merge tag 'trace-v5.2-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
#     
#     Pull tracing warning fix from Steven Rostedt:
#      "Make the GCC 9 warning for sub struct memset go away.
#     
#       GCC 9 now warns about calling memset() on partial structures when it
#       goes across multiple fields. This adds a helper for the place in
#       tracing that does this type of clearing of a structure"
#     
#     * tag 'trace-v5.2-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
#       tracing: Silence GCC 9 array bounds warning
# < /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 c5b440951a19fdd068090d38dcbe72ea28e5e0d0
# < 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/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/kisskb/src/kernel/printk/printk.c:194:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/arch/s390/kernel/machine_kexec.c:146:22: warning: 'do_start_kdump' defined but not used [-Wunused-function]
Completed OK
# rm -rf /kisskb/build/linus_s390-allnoconfig_s390x
# Build took: 0:00:17.143372