[PATCH AUTOSEL 5.5 267/542] x86/vdso: Provide missing include file

[Sasha Levin]

From: Valdis KlÄtnieks <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 240626e7f55aa..43842fade8fa1 100644
--- a/arch/x86/entry/vdso/vdso32-setup.c
+++ b/arch/x86/entry/vdso/vdso32-setup.c
@@ -11,6 +11,7 @@
 #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