# git rev-parse -q --verify 3a9dd3ecb207b2cb8a4aabd12d20e43fa360b66d^{commit}
# git fetch -q -n -f git://gitlab.ozlabs.ibm.com/mirror/linux-kbuild.git for-next
# git rev-parse -q --verify 3a9dd3ecb207b2cb8a4aabd12d20e43fa360b66d^{commit}
3a9dd3ecb207b2cb8a4aabd12d20e43fa360b66d
# git checkout -q -f -B kisskb 3a9dd3ecb207b2cb8a4aabd12d20e43fa360b66d
# git clean -qxdf
# < git log -1
# commit 3a9dd3ecb207b2cb8a4aabd12d20e43fa360b66d
# Author: Masahiro Yamada <masahiroy@kernel.org>
# Date:   Mon Mar 2 15:23:40 2020 +0900
# 
#     kconfig: make 'imply' obey the direct dependency
#     
#     The 'imply' statement may create unmet direct dependency when the
#     implied symbol depends on m.
#     
#     [Test Code]
#     
#       config FOO
#               tristate "foo"
#               imply BAZ
#     
#       config BAZ
#               tristate "baz"
#               depends on BAR
#     
#       config BAR
#               def_tristate m
#     
#       config MODULES
#               def_bool y
#               option modules
#     
#     If you set FOO=y, BAZ is also promoted to y, which results in the
#     following .config file:
#     
#       CONFIG_FOO=y
#       CONFIG_BAZ=y
#       CONFIG_BAR=m
#       CONFIG_MODULES=y
#     
#     This does not meet the dependency 'BAZ depends on BAR'.
#     
#     Unlike 'select', what is worse, Kconfig never shows the
#     'WARNING: unmet direct dependencies detected for ...' for this case.
#     
#     Because 'imply' is considered to be weaker than 'depends on', Kconfig
#     should take the direct dependency into account.
#     
#     For clarification, describe this case in kconfig-language.rst too.
#     
#     Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
#     Acked-by: Nicolas Pitre <nico@fluxnic.net>
#     Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
# < /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 3a9dd3ecb207b2cb8a4aabd12d20e43fa360b66d
# < make -s -j 10 ARCH=arm64 O=/kisskb/build/kbuild_arm64-defconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  defconfig
# < make -s -j 10 ARCH=arm64 O=/kisskb/build/kbuild_arm64-defconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  help
# make -s -j 10 ARCH=arm64 O=/kisskb/build/kbuild_arm64-defconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  olddefconfig
# make -s -j 10 ARCH=arm64 O=/kisskb/build/kbuild_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:35: LSE atomics not supported by binutils
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:14,
                 from /kisskb/src/drivers/tty/serial/sh-sci.c:20:
/kisskb/src/drivers/tty/serial/sh-sci.c: In function 'sci_dma_rx_submit':
/kisskb/src/include/linux/spinlock.h:288:3: 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:1348:16: note: 'flags' was declared here
  unsigned long flags;
                ^
/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;
                ^
Completed OK
# rm -rf /kisskb/build/kbuild_arm64-defconfig_arm64-gcc5.4
# Build took: 0:10:21.091219