Buildresult: gustavoars/s390-allmodconfig/s390x-gcc8 built on Aug 19 2021, 21:08

kisskb

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Status:	OK
Date/Time:	Aug 19 2021, 21:08
Duration:	0:13:39.489839
Builder:	ka7
Revision:	Makefile: Enable -Wimplicit-fallthrough for Clang (`7bc04ce6b914a06d5823509d1de237787c58e649)`
Target:	gustavoars/s390-allmodconfig/s390x-gcc8
Branch:	gustavoars
Compiler:	s390x-gcc8 (s390-linux-gcc (GCC) 8.1.0 / GNU ld (GNU Binutils) 2.30)
Config:	allmodconfig (download)
Log:	Download original Possible warnings (8) arch/s390/kernel/syscall.c:168:1: warning: '__do_syscall' uses dynamic stack allocation kernel/trace/trace_osnoise.c:1461:8: warning: 'main' is usually a function [-Wmain] lib/test_scanf.c:530:1: warning: the frame size of 2488 bytes is larger than 2048 bytes [-Wframe-larger-than=] lib/test_scanf.c:488:1: warning: the frame size of 2976 bytes is larger than 2048 bytes [-Wframe-larger-than=] lib/test_scanf.c:437:1: warning: the frame size of 2488 bytes is larger than 2048 bytes [-Wframe-larger-than=] drivers/gpu/drm/rockchip/cdn-dp-core.c:1126:12: warning: 'cdn_dp_resume' defined but not used [-Wunused-function] drivers/input/joystick/analog.c:160:2: warning: #warning Precise timer not defined for this architecture. [-Wcpp] #warning Precise timer not defined for this architecture. Full Log # git rev-parse -q --verify 7bc04ce6b914a06d5823509d1de237787c58e649^{commit} 7bc04ce6b914a06d5823509d1de237787c58e649 already have revision, skipping fetch # git checkout -q -f -B kisskb 7bc04ce6b914a06d5823509d1de237787c58e649 # git clean -qxdf # < git log -1 # commit 7bc04ce6b914a06d5823509d1de237787c58e649 # Author: Gustavo A. R. Silva <gustavoars@kernel.org> # Date: Tue Aug 17 15:33:33 2021 -0500 # # Makefile: Enable -Wimplicit-fallthrough for Clang # # With the recent fixes for fallthrough warnings, it is now possible to # enable -Wimplicit-fallthrough for Clang. # # Special thanks to Nathan Chancellor who fixed the Clang bug[1][2] # that put the application of this patch to a halt, temporarily. This # bugfix only appears in Clang 14.0.0, so older versions still contain # the bug and -Wimplicit-fallthrough won't be enabled for them, for # now. # # As Masahiro noted, the "ifeq" conditional "will break when Clang # version 100.0.0 is released. But, before that, we will raise the # minimum supported clang version, and this conditional will go away."[3] # # This concludes a long journey and now we are finally getting rid # of the unintentional fallthrough bug-class in the kernel, entirely. # # [1] https://github.com/llvm/llvm-project/commit/9ed4a94d6451046a51ef393cd62f00710820a7e8 # [2] https://bugs.llvm.org/show_bug.cgi?id=51094 # [3] https://lore.kernel.org/lkml/CAK7LNAQFgYgavTP2ZG9Y16XBVdPuJ98J_Ty1OrQy1GXHq6JjQQ@mail.gmail.com/ # # Link: https://github.com/KSPP/linux/issues/115 # Link: https://github.com/ClangBuiltLinux/linux/issues/236 # ["firstword" and "sort" was idea of Masahiro] # Suggested-by: Masahiro Yamada <masahiroy@kernel.org> # [The conditional "ifeq" was idea of Nathan] # Suggested-by: Nathan Chancellor <nathan@kernel.org> # Reviewed-by: Nathan Chancellor <nathan@kernel.org> # Tested-by: Nathan Chancellor <nathan@kernel.org> # Co-developed-by: Kees Cook <keescook@chromium.org> # Signed-off-by: Kees Cook <keescook@chromium.org> # Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> # < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux-ld --version # < git log --format=%s --max-count=1 7bc04ce6b914a06d5823509d1de237787c58e649 # < make -s -j 32 ARCH=s390 O=/kisskb/build/gustavoars_s390-allmodconfig_s390x-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-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 32 ARCH=s390 O=/kisskb/build/gustavoars_s390-allmodconfig_s390x-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux- help # make -s -j 32 ARCH=s390 O=/kisskb/build/gustavoars_s390-allmodconfig_s390x-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux- olddefconfig # make -s -j 32 ARCH=s390 O=/kisskb/build/gustavoars_s390-allmodconfig_s390x-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux- /kisskb/src/arch/s390/kernel/syscall.c: In function '__do_syscall': /kisskb/src/arch/s390/kernel/syscall.c:168:1: warning: '__do_syscall' uses dynamic stack allocation } ^ /kisskb/src/kernel/trace/trace_osnoise.c: In function 'start_kthread': /kisskb/src/kernel/trace/trace_osnoise.c:1461:8: warning: 'main' is usually a function [-Wmain] void main = osnoise_main; ^~~~ /kisskb/src/lib/test_scanf.c: In function 'numbers_list_field_width_val_width': /kisskb/src/lib/test_scanf.c:530:1: warning: the frame size of 2488 bytes is larger than 2048 bytes [-Wframe-larger-than=] } ^ /kisskb/src/lib/test_scanf.c: In function 'numbers_list_field_width_typemax': /kisskb/src/lib/test_scanf.c:488:1: warning: the frame size of 2976 bytes is larger than 2048 bytes [-Wframe-larger-than=] } ^ /kisskb/src/lib/test_scanf.c: In function 'numbers_list': /kisskb/src/lib/test_scanf.c:437:1: warning: the frame size of 2488 bytes is larger than 2048 bytes [-Wframe-larger-than=] } ^ /kisskb/src/drivers/gpu/drm/rockchip/cdn-dp-core.c:1126:12: warning: 'cdn_dp_resume' defined but not used [-Wunused-function] static int cdn_dp_resume(struct device dev) ^~~~~~~~~~~~~ /kisskb/src/drivers/input/joystick/analog.c:160:2: warning: #warning Precise timer not defined for this architecture. [-Wcpp] #warning Precise timer not defined for this architecture. ^~~~~~~ Completed OK # rm -rf /kisskb/build/gustavoars_s390-allmodconfig_s390x-gcc8 # Build took: 0:13:39.489839

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