From: Valdis Klētnieks <valdis.kletnieks@xxxxxx> [ Upstream commit bff47c2302cc249bcd550b17067f8dddbd4b6f77 ] When building with C=1, sparse issues a warning: CHECK arch/x86/entry/vdso/vdso32-setup.c arch/x86/entry/vdso/vdso32-setup.c:28:28: warning: symbol 'vdso32_enabled' was not declared. Should it be static? Provide the missing header file. Signed-off-by: Valdis Kletnieks <valdis.kletnieks@xxxxxx> Signed-off-by: Borislav Petkov <bp@xxxxxxx> Cc: "H. Peter Anvin" <hpa@xxxxxxxxx> Cc: Andy Lutomirski <luto@xxxxxxxxxx> Cc: Ingo Molnar <mingo@xxxxxxxxxx> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Cc: x86-ml <x86@xxxxxxxxxx> Link: https://lkml.kernel.org/r/36224.1575599767@turing-police Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- arch/x86/entry/vdso/vdso32-setup.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/entry/vdso/vdso32-setup.c b/arch/x86/entry/vdso/vdso32-setup.c index 3f9d1a83891ad..50c1f77cab150 100644 --- a/arch/x86/entry/vdso/vdso32-setup.c +++ b/arch/x86/entry/vdso/vdso32-setup.c @@ -10,6 +10,7 @@ #include <linux/smp.h> #include <linux/kernel.h> #include <linux/mm_types.h> +#include <linux/elf.h> #include <asm/processor.h> #include <asm/vdso.h> -- 2.20.1