# git rev-parse -q --verify a2818e1225b055e1aab14e47a4ce039338b0c216^{commit}
a2818e1225b055e1aab14e47a4ce039338b0c216
already have revision, skipping fetch
# git checkout -q -f -B kisskb a2818e1225b055e1aab14e47a4ce039338b0c216
# git clean -qxdf
# < git log -1
# commit a2818e1225b055e1aab14e47a4ce039338b0c216
# Author: Alexey Kardashevskiy <aik@ozlabs.ru>
# Date:   Thu Sep 29 12:08:23 2022 +1000
# 
#     zstd: Fixing mixed module-builtin objects
#     
#     With CONFIG_ZSTD_COMPRESS=m and CONFIG_ZSTD_DECOMPRESS=y we end up in
#     a situation when files from lib/zstd/common/ are compiled once to be
#     linked later for ZSTD_DECOMPRESS (build-in) and ZSTD_COMPRESS (module)
#     even though CFLAGS are different for builtins and modules.
#     So far somehow this was not a problem but enabling LLVM LTO exposes
#     the problem as:
#     
#     ld.lld: error: linking module flags 'Code Model': IDs have conflicting values in 'lib/built-in.a(zstd_common.o at 5868)' and 'ld-temp.o'
#     
#     This particular conflict is caused by KBUILD_CFLAGS=-mcmodel=medium vs.
#     KBUILD_CFLAGS_MODULE=-mcmodel=large , modules use the large model on
#     POWERPC as explained at
#     https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/powerpc/Makefile?h=v5.18-rc4#n127
#     but the current use of common files is wrong anyway.
#     
#     This works around the issue by introducing a zstd_common module with
#     shared code.
#     
#     Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
#     Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
# < /opt/cross/kisskb/korg/gcc-8.5.0-nolibc/x86_64-linux/bin/x86_64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-8.5.0-nolibc/x86_64-linux/bin/x86_64-linux-ld --version
# < git log --format=%s --max-count=1 a2818e1225b055e1aab14e47a4ce039338b0c216
# < make -s -j 24 ARCH=x86 O=/kisskb/build/kbuild_x86-allmodconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/x86_64-linux/bin/x86_64-linux-  allmodconfig
# Added to kconfig CONFIG_BUILD_DOCSRC=n
# Added to kconfig CONFIG_MODULE_SIG=n
# Added to kconfig CONFIG_SAMPLES=n
# < make -s -j 24 ARCH=x86 O=/kisskb/build/kbuild_x86-allmodconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/x86_64-linux/bin/x86_64-linux-  help
# make -s -j 24 ARCH=x86 O=/kisskb/build/kbuild_x86-allmodconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/x86_64-linux/bin/x86_64-linux-  olddefconfig
# make -s -j 24 ARCH=x86 O=/kisskb/build/kbuild_x86-allmodconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/x86_64-linux/bin/x86_64-linux-  
/kisskb/src/drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn30/display_mode_vba_30.c: In function 'UseMinimumDCFCLK':
/kisskb/src/drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn30/display_mode_vba_30.c:6805:1: error: the frame size of 2096 bytes is larger than 2048 bytes [-Werror=frame-larger-than=]
 }
 ^
cc1: all warnings being treated as errors
make[6]: *** [/kisskb/src/scripts/Makefile.build:249: drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn30/display_mode_vba_30.o] Error 1
make[6]: *** Waiting for unfinished jobs....
make[5]: *** [/kisskb/src/scripts/Makefile.build:440: drivers/gpu/drm/amd/amdgpu] Error 2
make[5]: *** Waiting for unfinished jobs....
make[4]: *** [/kisskb/src/scripts/Makefile.build:440: drivers/gpu/drm] Error 2
make[3]: *** [/kisskb/src/scripts/Makefile.build:440: drivers/gpu] Error 2
make[3]: *** Waiting for unfinished jobs....
make[2]: *** [/kisskb/src/scripts/Makefile.build:440: drivers] Error 2
make[1]: *** [/kisskb/src/Makefile:1846: .] Error 2
make: *** [Makefile:222: __sub-make] Error 2
Command 'make -s -j 24 ARCH=x86 O=/kisskb/build/kbuild_x86-allmodconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/x86_64-linux/bin/x86_64-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/kbuild_x86-allmodconfig_x86_64-gcc8
# Build took: 0:36:14.226409