From: Nathan Chancellor <nathan@kernel.org> To: mpe@ellerman.id.au Cc: npiggin@gmail.com, christophe.leroy@csgroup.eu, masahiroy@kernel.org, linuxppc-dev@lists.ozlabs.org, patches@lists.linux.dev, kernel test robot <lkp@intel.com>, Nathan Chancellor <nathan@kernel.org> Subject: [PATCH] powerpc/32: Include thread_info.h in head_booke.h Date: Thu, 06 Apr 2023 10:51:30 -0700 [thread overview] Message-ID: <20230406-wundef-thread_shift_booke-v1-1-8deffa4d84f9@kernel.org> (raw) When building with W=1 after commit 80b6093b55e3 ("kbuild: add -Wundef to KBUILD_CPPFLAGS for W=1 builds"), the following warning occurs. In file included from arch/powerpc/kvm/bookehv_interrupts.S:26: arch/powerpc/kvm/../kernel/head_booke.h:20:6: warning: "THREAD_SHIFT" is not defined, evaluates to 0 [-Wundef] 20 | #if (THREAD_SHIFT < 15) | ^~~~~~~~~~~~ THREAD_SHIFT is defined in thread_info.h but it is not directly included in head_booke.h, so it is possible for THREAD_SHIFT to be undefined. Add the include to ensure that THREAD_SHIFT is always defined. Reported-by: kernel test robot <lkp@intel.com> Link: https://lore.kernel.org/202304050954.yskLdczH-lkp@intel.com/ Signed-off-by: Nathan Chancellor <nathan@kernel.org> --- arch/powerpc/kernel/head_booke.h | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/kernel/head_booke.h b/arch/powerpc/kernel/head_booke.h index 37d43c172676..b6b5b01a173c 100644 --- a/arch/powerpc/kernel/head_booke.h +++ b/arch/powerpc/kernel/head_booke.h @@ -5,6 +5,7 @@ #include <asm/ptrace.h> /* for STACK_FRAME_REGS_MARKER */ #include <asm/kvm_asm.h> #include <asm/kvm_booke_hv_asm.h> +#include <asm/thread_info.h> /* for THREAD_SHIFT */ #ifdef __ASSEMBLY__ --- base-commit: b0bbe5a2915201e3231e788d716d39dc54493b03 change-id: 20230406-wundef-thread_shift_booke-e08d806ed656 Best regards, -- Nathan Chancellor <nathan@kernel.org>
WARNING: multiple messages have this Message-ID (diff)
From: Nathan Chancellor <nathan@kernel.org> To: mpe@ellerman.id.au Cc: kernel test robot <lkp@intel.com>, masahiroy@kernel.org, patches@lists.linux.dev, Nathan Chancellor <nathan@kernel.org>, npiggin@gmail.com, linuxppc-dev@lists.ozlabs.org Subject: [PATCH] powerpc/32: Include thread_info.h in head_booke.h Date: Thu, 06 Apr 2023 10:51:30 -0700 [thread overview] Message-ID: <20230406-wundef-thread_shift_booke-v1-1-8deffa4d84f9@kernel.org> (raw) When building with W=1 after commit 80b6093b55e3 ("kbuild: add -Wundef to KBUILD_CPPFLAGS for W=1 builds"), the following warning occurs. In file included from arch/powerpc/kvm/bookehv_interrupts.S:26: arch/powerpc/kvm/../kernel/head_booke.h:20:6: warning: "THREAD_SHIFT" is not defined, evaluates to 0 [-Wundef] 20 | #if (THREAD_SHIFT < 15) | ^~~~~~~~~~~~ THREAD_SHIFT is defined in thread_info.h but it is not directly included in head_booke.h, so it is possible for THREAD_SHIFT to be undefined. Add the include to ensure that THREAD_SHIFT is always defined. Reported-by: kernel test robot <lkp@intel.com> Link: https://lore.kernel.org/202304050954.yskLdczH-lkp@intel.com/ Signed-off-by: Nathan Chancellor <nathan@kernel.org> --- arch/powerpc/kernel/head_booke.h | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/kernel/head_booke.h b/arch/powerpc/kernel/head_booke.h index 37d43c172676..b6b5b01a173c 100644 --- a/arch/powerpc/kernel/head_booke.h +++ b/arch/powerpc/kernel/head_booke.h @@ -5,6 +5,7 @@ #include <asm/ptrace.h> /* for STACK_FRAME_REGS_MARKER */ #include <asm/kvm_asm.h> #include <asm/kvm_booke_hv_asm.h> +#include <asm/thread_info.h> /* for THREAD_SHIFT */ #ifdef __ASSEMBLY__ --- base-commit: b0bbe5a2915201e3231e788d716d39dc54493b03 change-id: 20230406-wundef-thread_shift_booke-e08d806ed656 Best regards, -- Nathan Chancellor <nathan@kernel.org>
next reply other threads:[~2023-04-06 17:51 UTC|newest] Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top 2023-04-06 17:51 Nathan Chancellor [this message] 2023-04-06 17:51 ` [PATCH] powerpc/32: Include thread_info.h in head_booke.h Nathan Chancellor 2023-04-07 23:24 ` Nick Desaulniers 2023-04-07 23:24 ` Nick Desaulniers 2023-04-10 12:25 ` Masahiro Yamada 2023-04-10 12:25 ` Masahiro Yamada 2023-04-26 12:01 ` Michael Ellerman 2023-04-26 12:01 ` Michael Ellerman
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