From 8002725b9e3369ce8616d32dc2e7a57870475142 Mon Sep 17 00:00:00 2001 From: Nathan Chancellor Date: Thu, 6 Apr 2023 10:51:30 -0700 Subject: [PATCH] powerpc/32: Include thread_info.h in head_booke.h 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 Link: https://lore.kernel.org/202304050954.yskLdczH-lkp@intel.com/ Signed-off-by: Nathan Chancellor Reviewed-by: Masahiro Yamada Reviewed-by: Nick Desaulniers Signed-off-by: Michael Ellerman Link: https://msgid.link/20230406-wundef-thread_shift_booke-v1-1-8deffa4d84f9@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 37d43c1726766..b6b5b01a173cb 100644 --- a/arch/powerpc/kernel/head_booke.h +++ b/arch/powerpc/kernel/head_booke.h @@ -5,6 +5,7 @@ #include /* for STACK_FRAME_REGS_MARKER */ #include #include +#include /* for THREAD_SHIFT */ #ifdef __ASSEMBLY__ -- 2.30.2