Buildresult: linus/axs103_smp_defconfig/arc-gcc12 built on Feb 2, 13:41

kisskb

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Status:	OK
Date/Time:	Feb 2, 13:41
Duration:	0:02:37.374367
Builder:	alpine3
Revision:	Kconfig: Disable -Wstringop-overflow for GCC globally (`021533194476035883300d60fbb3136426ac8ea5)`
Target:	linus/axs103_smp_defconfig/arc-gcc12
Branch:	linus
Compiler:	arc-gcc12 (arc-linux-gcc (GCC) 12.2.0 / GNU ld (GNU Binutils) 2.39)
Config:	axs103_smp_defconfig (download)
Log:	Download original Possible warnings (5) arch/arc/kernel/ptrace.c:342:16: warning: no previous prototype for 'syscall_trace_enter' [-Wmissing-prototypes] drivers/base/regmap/regcache-maple.c:113:23: warning: 'lower_index' is used uninitialized [-Wuninitialized] drivers/base/regmap/regcache-maple.c:113:36: warning: 'lower_last' is used uninitialized [-Wuninitialized] drivers/base/regmap/regcache-maple.c:114:23: warning: 'upper_index' is used uninitialized [-Wuninitialized] drivers/base/regmap/regcache-maple.c:114:36: warning: 'upper_last' is used uninitialized [-Wuninitialized] Full Log # git rev-parse -q --verify 021533194476035883300d60fbb3136426ac8ea5^{commit} 021533194476035883300d60fbb3136426ac8ea5 already have revision, skipping fetch # git checkout -q -f -B kisskb 021533194476035883300d60fbb3136426ac8ea5 # git clean -qxdf # < git log -1 # commit 021533194476035883300d60fbb3136426ac8ea5 # Author: Linus Torvalds <torvalds@linux-foundation.org> # Date: Thu Feb 1 14:57:17 2024 -0800 # # Kconfig: Disable -Wstringop-overflow for GCC globally # # It turns out it was never just gcc-11 that was broken. Apparently it # just happens to work on x86-64 with other gcc versions. # # On arm64, I see warnings with gcc version 13.2.1, and the kernel test # robot reports the same problem on s390 with gcc 13.2.0. # # Admittedly it seems to be just the new Xe drm driver, but this is # keeping me from doing my normal arm64 build testing. So it gets # reverted until somebody figures out what causes the problem (and why it # doesn't show on x86-64, which is what makes me suspect it was never just # about gcc-11, and more about just random happenstance). # # This also changes the Kconfig naming a bit - just make the "disable this # for GCC" conditional be one simple Kconfig entry, and we can put the gcc # version dependencies in that entry once we figure out what the correct # rules are. # # The version dependency _may_ still end up being "gcc version larger than # 11" if the issue is purely in the Xe driver, but even if that ends up # the case, let's make that all part of the "GCC_NO_STRINGOP_OVERFLOW" # logic. # # For now, we just disable it for all gcc versions while the exact cause # is unknown. # # Link: https://lore.kernel.org/all/202401161031.hjGJHMiJ-lkp@intel.com/T/ # Cc: Gustavo A. R. Silva <gustavoars@kernel.org> # Cc: Kees Cook <keescook@chromium.org> # Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> # < /opt/cross/kisskb/korg/gcc-12.2.0-nolibc/arc-linux/bin/arc-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-12.2.0-nolibc/arc-linux/bin/arc-linux-ld --version # < git log --format=%s --max-count=1 021533194476035883300d60fbb3136426ac8ea5 # make -s -j 160 ARCH=arc O=/kisskb/build/linus_axs103_smp_defconfig_arc-gcc12 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-12.2.0-nolibc/arc-linux/bin/arc-linux- axs103_smp_defconfig # Added to kconfig CONFIG_INITRAMFS_SOURCE="" # < make -s -j 160 ARCH=arc O=/kisskb/build/linus_axs103_smp_defconfig_arc-gcc12 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-12.2.0-nolibc/arc-linux/bin/arc-linux- help # make -s -j 160 ARCH=arc O=/kisskb/build/linus_axs103_smp_defconfig_arc-gcc12 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-12.2.0-nolibc/arc-linux/bin/arc-linux- olddefconfig # make -s -j 160 ARCH=arc O=/kisskb/build/linus_axs103_smp_defconfig_arc-gcc12 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-12.2.0-nolibc/arc-linux/bin/arc-linux- /kisskb/src/arch/arc/kernel/ptrace.c:342:16: warning: no previous prototype for 'syscall_trace_enter' [-Wmissing-prototypes] 342 \| asmlinkage int syscall_trace_enter(struct pt_regs *regs) \| ^~~~~~~~~~~~~~~~~~~ /kisskb/src/drivers/base/regmap/regcache-maple.c: In function 'regcache_maple_drop': /kisskb/src/drivers/base/regmap/regcache-maple.c:113:23: warning: 'lower_index' is used uninitialized [-Wuninitialized] 113 \| unsigned long lower_index, lower_last; \| ^~~~~~~~~~~ /kisskb/src/drivers/base/regmap/regcache-maple.c:113:36: warning: 'lower_last' is used uninitialized [-Wuninitialized] 113 \| unsigned long lower_index, lower_last; \| ^~~~~~~~~~ /kisskb/src/drivers/base/regmap/regcache-maple.c:114:23: warning: 'upper_index' is used uninitialized [-Wuninitialized] 114 \| unsigned long upper_index, upper_last; \| ^~~~~~~~~~~ /kisskb/src/drivers/base/regmap/regcache-maple.c:114:36: warning: 'upper_last' is used uninitialized [-Wuninitialized] 114 \| unsigned long upper_index, upper_last; \| ^~~~~~~~~~ Completed OK # rm -rf /kisskb/build/linus_axs103_smp_defconfig_arc-gcc12 # Build took: 0:02:37.374367

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