# git rev-parse -q --verify 54dee406374ce8adb352c48e175176247cb8db7c^{commit}
# git fetch -q -n -f git://fs.ozlabs.ibm.com/kernel/linus master
warning: The last gc run reported the following. Please correct the root cause
and remove .git/gc.log.
Automatic cleanup will not be performed until the file is removed.

warning: There are too many unreachable loose objects; run 'git prune' to remove them.

# git rev-parse -q --verify 54dee406374ce8adb352c48e175176247cb8db7c^{commit}
54dee406374ce8adb352c48e175176247cb8db7c
# git checkout -q -f -B kisskb 54dee406374ce8adb352c48e175176247cb8db7c
# git clean -qxdf
# < git log -1
# commit 54dee406374ce8adb352c48e175176247cb8db7c
# Merge: 651bae980e3f 7a0a93c51799
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Wed May 22 08:36:16 2019 -0700
# 
#     Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
#     
#     Pull arm64 fixes from Will Deacon:
#     
#      - Fix SPE probe failure when backing auxbuf with high-order pages
#     
#      - Fix handling of DMA allocations from outside of the vmalloc area
#     
#      - Fix generation of build-id ELF section for vDSO object
#     
#      - Disable huge I/O mappings if kernel page table dumping is enabled
#     
#      - A few other minor fixes (comments, kconfig etc)
#     
#     * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
#       arm64: vdso: Explicitly add build-id option
#       arm64/mm: Inhibit huge-vmap with ptdump
#       arm64: Print physical address of page table base in show_pte()
#       arm64: don't trash config with compat symbol if COMPAT is disabled
#       arm64: assembler: Update comment above cond_yield_neon() macro
#       drivers/perf: arm_spe: Don't error on high-order pages for aux buf
#       arm64/iommu: handle non-remapped addresses in ->mmap and ->get_sgtable
# < /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 54dee406374ce8adb352c48e175176247cb8db7c
# < make -s -j 80 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 80 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: 0:01:30.258205