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authorArd Biesheuvel <ardb@kernel.org>2023-02-02 18:30:06 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-02-09 11:28:17 +0100
commit661bb546c4d547afbc0fab30dd69467a95446263 (patch)
tree42c500c7249c95f0a511ecd2e790f1ca7ee2b743
parentac515839b1f3e0b824af4c320a10e7cf75346507 (diff)
downloadlinux-661bb546c4d547afbc0fab30dd69467a95446263.tar.gz
efi: Accept version 2 of memory attributes table
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@vger.kernel.org>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/firmware/efi/memattr.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/firmware/efi/memattr.c b/drivers/firmware/efi/memattr.c
index 0a9aba5f9cef..f178b2984dfb 100644
--- a/drivers/firmware/efi/memattr.c
+++ b/drivers/firmware/efi/memattr.c
@@ -33,7 +33,7 @@ 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;