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The old AES-GCM library code is being replaced as part of an overhaul that is adding support for all the common AES encryption modes with consistent conventions. The SEV code is the only user of the old AES-GCM library. Update it to use the new API instead. Besides adjustments to the key struct name, function names, return value, and parameter order, the only notable changes are: - Replace the direct accesses to the auth tag length field (which should be considered private until someone truly needs it) with the AUTHTAG_LEN constant which is already defined in <asm/sev.h>. - Replace kfree() with kfree_sensitive() on lines being changed anyway. Tested-by: Nikunj A Dadhania <nikunj@amd.com> Reviewed-by: Ard Biesheuvel <ardb@kernel.org> Link: https://patch.msgid.link/20260722025338.33354-2-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@kernel.org>