# git rev-parse -q --verify 0e40da3efeb02ab0333d01abae20d421841db30a^{commit}
0e40da3efeb02ab0333d01abae20d421841db30a
already have revision, skipping fetch
# git checkout -q -f -B kisskb 0e40da3efeb02ab0333d01abae20d421841db30a
# git clean -qxdf
# < git log -1
# commit 0e40da3efeb02ab0333d01abae20d421841db30a
# Merge: ffb8e45cf33e 9c38f1f04408
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Fri Mar 29 14:46:00 2019 -0700
# 
#     Merge tag 'kbuild-fixes-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
#     
#     Pull Kbuild fixes from Masahiro Yamada:
#     
#      - Remove harmful -Oz option of Clang
#     
#      - Get back the original behavior (no recursion for in-tree build) for
#        GNU Make 4.x
#     
#      - Some minor fixes for coccinelle patches
#     
#      - Do not overwrite .gitignore in the output directory in case it is
#        version-controlled
#     
#      - Fix missed record-mcount bug for dynamic ftrace
#     
#      - Fix endianness bug in modversions for relative CRC
#     
#      - Cater to '^H' key code in Kconfig ncurses programs
#     
#     * tag 'kbuild-fixes-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
#       kconfig/[mn]conf: handle backspace (^H) key
#       kbuild: modversions: Fix relative CRC byte order interpretation
#       scripts: coccinelle: Fix description of badty.cocci
#       kbuild: strip whitespace in cmd_record_mcount findstring
#       kbuild: do not overwrite .gitignore in output directory
#       kbuild: skip parsing pre sub-make code for recursion
#       coccinelle: put_device: reduce false positives
#       kbuild: skip sub-make for in-tree build with GNU Make 4.x
#       Revert "kbuild: use -Oz instead of -Os when using clang"
# < /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-gcc --version
# < /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-ld --version
# < git log --format=%s --max-count=1 0e40da3efeb02ab0333d01abae20d421841db30a
# < make -s -j 120 ARCH=arm64 O=/kisskb/build/linus_arm64-defconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  defconfig
# make -s -j 120 ARCH=arm64 O=/kisskb/build/linus_arm64-defconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  
arch/arm64/Makefile:27: ld does not support --fix-cortex-a53-843419; kernel may be susceptible to erratum
arch/arm64/Makefile:40: LSE atomics not supported by binutils
/kisskb/src/drivers/i2c/busses/i2c-sh_mobile.c: In function 'sh_mobile_i2c_isr':
/kisskb/src/drivers/i2c/busses/i2c-sh_mobile.c:399:26: warning: 'data' may be used uninitialized in this function [-Wmaybe-uninitialized]
   pd->msg->buf[real_pos] = data;
                          ^
/kisskb/src/drivers/i2c/busses/i2c-sh_mobile.c:372:16: note: 'data' was declared here
  unsigned char data;
                ^
In file included from /kisskb/src/include/linux/rwsem.h:16:0,
                 from /kisskb/src/include/linux/notifier.h:15,
                 from /kisskb/src/include/linux/clk.h:17,
                 from /kisskb/src/drivers/tty/serial/sh-sci.c:24:
/kisskb/src/drivers/tty/serial/sh-sci.c: In function 'sci_dma_rx_submit':
/kisskb/src/include/linux/spinlock.h:279:3: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized]
   _raw_spin_unlock_irqrestore(lock, flags); \
   ^
/kisskb/src/drivers/tty/serial/sh-sci.c:1363:16: note: 'flags' was declared here
  unsigned long flags;
                ^
Completed OK
# rm -rf /kisskb/build/linus_arm64-defconfig_arm64-gcc5.4
# Build took: 0:02:25.368394