Hi Naresh,
On Tue, Feb 07, 2023 at 01:27:05PM +0530, Naresh Kamboju wrote:
Following Build regressions warnings / errors noticed on Linux next-20230207.
Regressions found on x86_64:
- build/clang-15-lkftconfig-compat - build/clang-nightly-lkftconfig - build/clang-15-lkftconfig - build/clang-15-lkftconfig-kcsan - build/clang-lkftconfig
In file included from arch/x86/entry/vdso/vdso32/vgetcpu.c:2: In file included from arch/x86/entry/vdso/vdso32/../vgetcpu.c:8: In file included from include/linux/kernel.h:22: In file included from include/linux/bitops.h:68: In file included from arch/x86/include/asm/bitops.h:420: arch/x86/include/asm/arch_hweight.h:49:15: error: invalid input size for constraint 'D' : REG_IN (w)); ^ In file included from arch/x86/entry/vdso/vdso32/vgetcpu.c:2: In file included from arch/x86/entry/vdso/vdso32/../vgetcpu.c:8: In file included from include/linux/kernel.h:25: In file included from include/linux/math.h:6: arch/x86/include/asm/div64.h:85:34: error: invalid output size for constraint '=a' asm ("mulq %2; divq %3" : "=a" (q) ^ 2 errors generated.
Reported-by: Linux Kernel Functional Testing lkft@linaro.org
Thanks a lot for the report as always! Looks like there is a fix pending on the list:
https://lore.kernel.org/Y+IsCWQdXEr8d9Vy@linutronix.de/
Cheers, Nathan