# git rev-parse -q --verify 713db356041071d16360e82247de3107ec9ed57f^{commit}
713db356041071d16360e82247de3107ec9ed57f
already have revision, skipping fetch
# git checkout -q -f -B kisskb 713db356041071d16360e82247de3107ec9ed57f
# git clean -qxdf
# < git log -1
# commit 713db356041071d16360e82247de3107ec9ed57f
# Merge: 288b27a06e4f 1b9867eb6120
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sun Feb 16 11:43:45 2020 -0800
# 
#     Merge tag 'for-5.6-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
#     
#     Pull btrfs fixes from David Sterba:
#      "Two races fixed, memory leak fix, sysfs directory fixup and two new
#       log messages:
#     
#        - two fixed race conditions: extent map merging and truncate vs
#          fiemap
#     
#        - create the right sysfs directory with device information and move
#          the individual device dirs under it
#     
#        - print messages when the tree-log is replayed at mount time or
#          cannot be replayed on remount"
#     
#     * tag 'for-5.6-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
#       btrfs: sysfs, move device id directories to UUID/devinfo
#       btrfs: sysfs, add UUID/devinfo kobject
#       Btrfs: fix race between shrinking truncate and fiemap
#       btrfs: log message when rw remount is attempted with unclean tree-log
#       btrfs: print message when tree-log replay starts
#       Btrfs: fix race between using extent maps and merging them
#       btrfs: ref-verify: fix memory leaks
# < /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 713db356041071d16360e82247de3107ec9ed57f
# < 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: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:168:12: warning: 'ip' may be used uninitialized in this function [-Wuninitialized]
Completed OK
# rm -rf /kisskb/build/linus_s390-allnoconfig_s390x
# Build took: 0:00:16.821145