[PATCH 4.14 15/53] efi: Accept version 2 of memory attributes table

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From: Ard Biesheuvel <ardb@xxxxxxxxxx>

commit 636ab417a7aec4ee993916e688eb5c5977570836 upstream.

UEFI v2.10 introduces version 2 of the memory attributes table, which
turns the reserved field into a flags field, but is compatible with
version 1 in all other respects. So let's not complain about version 2
if we encounter it.

Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Ard Biesheuvel <ardb@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/firmware/efi/memattr.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/firmware/efi/memattr.c
+++ b/drivers/firmware/efi/memattr.c
@@ -35,7 +35,7 @@ int __init efi_memattr_init(void)
 		return -ENOMEM;
 	}
 
-	if (tbl->version > 1) {
+	if (tbl->version > 2) {
 		pr_warn("Unexpected EFI Memory Attributes table version %d\n",
 			tbl->version);
 		goto unmap;





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