# git rev-parse -q --verify c45e8bccecaf633480d378daff11e122dfd5e96d^{commit}
# git fetch -q -n -f git://fs.ozlabs.ibm.com/kernel/linus master
# git rev-parse -q --verify c45e8bccecaf633480d378daff11e122dfd5e96d^{commit}
c45e8bccecaf633480d378daff11e122dfd5e96d
# git checkout -q -f -B kisskb c45e8bccecaf633480d378daff11e122dfd5e96d
# git clean -qxdf
# < git log -1
# commit c45e8bccecaf633480d378daff11e122dfd5e96d
# Merge: 39e16d93424b 5686dee34dbf
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Thu Apr 30 16:45:08 2020 -0700
# 
#     Merge tag 'for-5.7/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
#     
#     Pull device mapper fixes from Mike Snitzer:
#     
#      - Document DM integrity allow_discard feature that was added during 5.7
#        merge window.
#     
#      - Fix potential for DM writecache data corruption during DM table
#        reloads.
#     
#      - Fix DM verity's FEC support's hash block number calculation in
#        verity_fec_decode().
#     
#      - Fix bio-based DM multipath crash due to use of stale copy of
#        MPATHF_QUEUE_IO flag state in __map_bio().
#     
#     * tag 'for-5.7/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
#       dm multipath: use updated MPATHF_QUEUE_IO on mapping for bio-based mpath
#       dm verity fec: fix hash block number in verity_fec_decode
#       dm writecache: fix data corruption when reloading the target
#       dm integrity: document allow_discard option
# < /opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-gcc --version
# < /opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-ld --version
# < git log --format=%s --max-count=1 c45e8bccecaf633480d378daff11e122dfd5e96d
# < make -s -j 24 ARCH=sparc O=/kisskb/build/linus_sparc-defconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-  defconfig
# < make -s -j 24 ARCH=sparc O=/kisskb/build/linus_sparc-defconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-  help
# make -s -j 24 ARCH=sparc O=/kisskb/build/linus_sparc-defconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-  olddefconfig
# make -s -j 24 ARCH=sparc O=/kisskb/build/linus_sparc-defconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-  
<stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp]
/kisskb/src/kernel/futex.c: In function 'do_futex':
/kisskb/src/kernel/futex.c:1676:17: warning: 'oldval' may be used uninitialized in this function [-Wmaybe-uninitialized]
   return oldval == cmparg;
                 ^
/kisskb/src/kernel/futex.c:1652:6: note: 'oldval' was declared here
  int oldval, ret;
      ^
  kernel: arch/sparc/boot/image is ready
  kernel: arch/sparc/boot/zImage is ready
Completed OK
# rm -rf /kisskb/build/linus_sparc-defconfig_sparc64
# Build took: 0:00:59.971951