# 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/gcc-4.6.3-nolibc/ia64-linux/bin/ia64-linux-gcc --version
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/ia64-linux/bin/ia64-linux-ld --version
# < git log --format=%s --max-count=1 3a9dd3ecb207b2cb8a4aabd12d20e43fa360b66d
# < make -s -j 24 ARCH=ia64 O=/kisskb/build/kbuild_ia64-defconfig_ia64-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/ia64-linux/bin/ia64-linux-  defconfig
# < make -s -j 24 ARCH=ia64 O=/kisskb/build/kbuild_ia64-defconfig_ia64-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/ia64-linux/bin/ia64-linux-  help
# make -s -j 24 ARCH=ia64 O=/kisskb/build/kbuild_ia64-defconfig_ia64-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/ia64-linux/bin/ia64-linux-  olddefconfig
# make -s -j 24 ARCH=ia64 O=/kisskb/build/kbuild_ia64-defconfig_ia64-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/ia64-linux/bin/ia64-linux-  
<stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp]
/kisskb/src/mm/vmstat.c: In function 'sysctl_vm_numa_stat_handler':
/kisskb/src/mm/vmstat.c:90:5: warning: 'oldval' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/proc/inode.c: In function 'proc_reg_open':
/kisskb/src/include/linux/list.h:72:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/proc/inode.c:338:21: note: 'pdeo' was declared here
/kisskb/src/mm/hugetlb.c: In function 'alloc_pool_huge_page':
/kisskb/src/mm/hugetlb.c:1426:5: warning: 'page' may be used uninitialized in this function [-Wuninitialized]
/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/fs/ext4/extents.c: In function 'ext4_convert_unwritten_io_end_vec':
/kisskb/src/fs/ext4/extents.c:5009:23: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/gpu/drm/drm_dp_mst_topology.c: In function 'drm_dp_mst_dsc_aux_for_port':
/kisskb/src/drivers/gpu/drm/drm_dp_mst_topology.c:5400:9: warning: missing braces around initializer [-Wmissing-braces]
/kisskb/src/drivers/gpu/drm/drm_dp_mst_topology.c:5400:9: warning: (near initialization for 'desc.ident') [-Wmissing-braces]
/kisskb/src/drivers/usb/core/devio.c: In function 'async_completed':
/kisskb/src/drivers/usb/core/devio.c:625:23: warning: 'errno' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/nfsd/nfs4xdr.c: In function 'nfsd4_encode_components_esc':
/kisskb/src/fs/nfsd/nfs4xdr.c:2151:9: warning: 'str' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/nfs/read.c: In function 'nfs_read_completion':
/kisskb/src/fs/nfs/read.c:196:5: warning: value computed is not used [-Wunused-value]
/kisskb/src/fs/nfs/read.c: In function 'nfs_readpage':
/kisskb/src/fs/nfs/read.c:353:2: warning: value computed is not used [-Wunused-value]
/kisskb/src/fs/udf/unicode.c: In function 'udf_name_conv_char':
/kisskb/src/fs/udf/unicode.c:132:8: warning: 'c' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/io_uring.c: In function '__io_sqe_files_update':
/kisskb/src/fs/io_uring.c:5824:13: warning: 'err' may be used uninitialized in this function [-Wuninitialized]
No errors detected in 22072 functions.
Completed OK
# rm -rf /kisskb/build/kbuild_ia64-defconfig_ia64-gcc4.6
# Build took: 0:02:43.662879