# git rev-parse -q --verify b2ad81363f12261f8b6a97ed7723960ea6450f31^{commit}
b2ad81363f12261f8b6a97ed7723960ea6450f31
already have revision, skipping fetch
# git checkout -q -f -B kisskb b2ad81363f12261f8b6a97ed7723960ea6450f31
# git clean -qxdf
# < git log -1
# commit b2ad81363f12261f8b6a97ed7723960ea6450f31
# Merge: a2c48d98fc07 52f476a323f9
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sat May 25 10:11:23 2019 -0700
# 
#     Merge tag 'libnvdimm-fixes-5.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
#     
#     Pull libnvdimm fixes from Dan Williams:
#     
#      - Fix a regression that disabled device-mapper dax support
#     
#      - Remove unnecessary hardened-user-copy overhead (>30%) for dax
#        read(2)/write(2).
#     
#      - Fix some compilation warnings.
#     
#     * tag 'libnvdimm-fixes-5.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
#       libnvdimm/pmem: Bypass CONFIG_HARDENED_USERCOPY overhead
#       dax: Arrange for dax_supported check to span multiple devices
#       libnvdimm: Fix compilation warnings with W=1
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux-ld --version
# < git log --format=%s --max-count=1 b2ad81363f12261f8b6a97ed7723960ea6450f31
# < make -s -j 120 ARCH=s390 O=/kisskb/build/linus_s390-allnoconfig_s390x-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux-  allnoconfig
# make -s -j 120 ARCH=s390 O=/kisskb/build/linus_s390-allnoconfig_s390x-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux-  
/kisskb/src/arch/s390/kernel/machine_kexec.c:146:22: warning: 'do_start_kdump' defined but not used [-Wunused-function]
 static unsigned long do_start_kdump(unsigned long addr)
                      ^~~~~~~~~~~~~~
Completed OK
# rm -rf /kisskb/build/linus_s390-allnoconfig_s390x-gcc8
# Build took: 0:00:09.073257