[PATCH v2] x86: add $(srctree) as include dir for sbat.o

[Jan Stancek <jstancek@redhat.com>]

CONFIG_EFI_SBAT_FILE can be a relative path. When compiling with
objdir != srctree the build currently fails because it can't find
the file set in CONFIG_EFI_SBAT_FILE:
    arch/x86/boot/compressed/sbat.S: Assembler messages:
    arch/x86/boot/compressed/sbat.S:6: Error: file not found: kernel.sbat

Add $(srctree) as include dir for sbat.o.

Fixes: 61b57d35396a ("x86/efi: Implement support for embedding SBAT data for x86")
Signed-off-by: Jan Stancek <jstancek@redhat.com>
---
 arch/x86/boot/compressed/Makefile | 1 +
 1 file changed, 1 insertion(+)

Changes in v2: updated shortlog

diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile
index 68f9d7a1683b..b8b2b7bea1d3 100644
--- a/arch/x86/boot/compressed/Makefile
+++ b/arch/x86/boot/compressed/Makefile
@@ -113,6 +113,7 @@ vmlinux-objs-$(CONFIG_EFI_SBAT) += $(obj)/sbat.o
 
 ifdef CONFIG_EFI_SBAT
 $(obj)/sbat.o: $(CONFIG_EFI_SBAT_FILE)
+AFLAGS_sbat.o += -I $(srctree)
 endif
 
 $(obj)/vmlinux: $(vmlinux-objs-y) $(vmlinux-libs-y) FORCE
-- 
2.47.3