From: Jiri Slaby jslaby@suse.cz
commit 3131ef39fb03bbde237d0b8260445898f3dfda5b upstream.
The build on x86_32 currently fails after commit
9bb2ec608a20 (objtool: Update Retpoline validation)
with:
arch/x86/kernel/../../x86/xen/xen-head.S:35: Error: no such instruction: `annotate_unret_safe'
ANNOTATE_UNRET_SAFE is defined in nospec-branch.h. And head_32.S is missing this include. Fix this.
Fixes: 9bb2ec608a20 ("objtool: Update Retpoline validation") Signed-off-by: Jiri Slaby jslaby@suse.cz Signed-off-by: Borislav Petkov bp@suse.de Link: https://lore.kernel.org/r/63e23f80-033f-f64e-7522-2816debbc367@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/x86/kernel/head_32.S | 1 + 1 file changed, 1 insertion(+)
--- a/arch/x86/kernel/head_32.S +++ b/arch/x86/kernel/head_32.S @@ -23,6 +23,7 @@ #include <asm/cpufeatures.h> #include <asm/percpu.h> #include <asm/nops.h> +#include <asm/nospec-branch.h> #include <asm/bootparam.h> #include <asm/export.h> #include <asm/pgtable_32.h>