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efi: Accept version 2 of memory attributes table

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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>
This commit is contained in:
Ard Biesheuvel 2023-02-02 18:30:06 +01:00 • committed by Greg Kroah-Hartman
commit 2035cfb958
1 changed files with 1 additions and 1 deletions
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2
drivers/firmware/efi/memattr.c
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@ -32,7 +32,7 @@ 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;