Re: [PATCH v2 1/2] mac80211: fils_aead: Use crypto api CMAC shash rather than bare cipher

 {
 	u8 d[AES_BLOCK_SIZE], tmp[AES_BLOCK_SIZE];
+	struct shash_desc *desc;
+	u8 buf[sizeof(*desc) + crypto_shash_descsize(tfm)]
CRYPTO_MINALIGN_ATTR;
 	size_t i;
-	const u8 *data[2];
-	size_t data_len[2], data_elems;
+
+	desc = (struct shash_desc *)buf;
+	desc->tfm = tfm;

+	crypto_shash_digest(desc, (u8[AES_BLOCK_SIZE]){},
AES_BLOCK_SIZE, d);

That's an interesting expression in there. Can we name it into a real
variable? :)

I'm also slightly worried about stack usage now - do we know none of
this goes into an sg list eventually?

johannes