On Mon, Apr 15, 2024 at 04:17:01PM +0530, Naresh Kamboju wrote:
The arc and sh defconfig builds failed due to following build warnings / errors on the Linux next-20240415 with gcc-9 and gcc-11.
Reported-by: Linux Kernel Functional Testing lkft@linaro.org
Following builds failed. sh: arc:
- defconfig
- tinyconfig
- allnoconfig
- vdk_hs38_smp_defconfig
Build log:
In file included from arch/arc/include/asm/atomic.h:13, from include/linux/atomic.h:7, from include/asm-generic/bitops/lock.h:5, from arch/arc/include/asm/bitops.h:188, from include/linux/bitops.h:70, from include/linux/log2.h:12, from kernel/bounds.c:13: include/linux/atomic/atomic-arch-fallback.h: In function 'raw_atomic_cmpxchg': arch/arc/include/asm/cmpxchg.h:50:12: error: implicit declaration of function 'cmpxchg_emu_u8' [-Werror=implicit-function-declaration] 50 | _prev_ = cmpxchg_emu_u8((volatile u8 *)_p_, _o_, _n_); \ | ^~~~~~~~~~~~~~
Steps to reproduce:
# tuxmake --runtime podman --target-arch arc --toolchain gcc-9 --kconfig defconfig # tuxmake --runtime podman --target-arch sh --toolchain gcc-11 --kconfig defconfig
Links:
Thank you for testing this! Does the following diff (to be folded into the originals with attribution) help?
Thanx, Paul
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diff --git a/arch/arc/include/asm/cmpxchg.h b/arch/arc/include/asm/cmpxchg.h index c3833e18389f4..40101f9d88d45 100644 --- a/arch/arc/include/asm/cmpxchg.h +++ b/arch/arc/include/asm/cmpxchg.h @@ -8,6 +8,7 @@
#include <linux/build_bug.h> #include <linux/types.h> +#include <linux/cmpxchg-emu.h>
#include <asm/barrier.h> #include <asm/smp.h> diff --git a/arch/sh/include/asm/cmpxchg.h b/arch/sh/include/asm/cmpxchg.h index 27a9040983cfe..726b3ad9c8703 100644 --- a/arch/sh/include/asm/cmpxchg.h +++ b/arch/sh/include/asm/cmpxchg.h @@ -9,6 +9,7 @@
#include <linux/compiler.h> #include <linux/types.h> +#include <linux/cmpxchg-emu.h>
#if defined(CONFIG_GUSA_RB) #include <asm/cmpxchg-grb.h>