diff mbox series

tls: Pass rec instead of aead_req into tls_encrypt_done

Message ID Y+IJXEYPuaQWjfR5@gondor.apana.org.au
State Accepted
Commit d3777ceaad080716f6d2c1a4c62020d494df00db
Headers show
Series tls: Pass rec instead of aead_req into tls_encrypt_done | expand

Commit Message

Herbert Xu Feb. 7, 2023, 8:18 a.m. UTC 
On Mon, Feb 06, 2023 at 11:15:21PM -0800, Jakub Kicinski wrote:
>
> >  	aead_request_set_callback(aead_req, CRYPTO_TFM_REQ_MAY_BACKLOG,
> > -				  tls_encrypt_done, sk);
> > +				  tls_encrypt_done, aead_req);
> 
> ... let's just pass rec instead of aead_req here, then?

Good point.  Could we do this as a follow-up patch? Reposting
the whole series would disturb a lot of people.  Of course if
other major issues crop up I can fold this into the existing
patch.

Thanks!

---8<---
The function tls_encrypt_done only uses aead_req to get ahold of
the tls_rec object.  So we could pass that in instead of aead_req
to simplify the code.

Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff mbox series

Patch

diff --git a/net/tls/tls_sw.c b/net/tls/tls_sw.c
index 0515cda32fe2..6dfec2e8fdfa 100644
--- a/net/tls/tls_sw.c
+++ b/net/tls/tls_sw.c
@@ -430,18 +430,16 @@  int tls_tx_records(struct sock *sk, int flags)
 
 static void tls_encrypt_done(void *data, int err)
 {
-	struct aead_request *aead_req = data;
 	struct tls_sw_context_tx *ctx;
 	struct tls_context *tls_ctx;
 	struct tls_prot_info *prot;
+	struct tls_rec *rec = data;
 	struct scatterlist *sge;
 	struct sk_msg *msg_en;
-	struct tls_rec *rec;
 	bool ready = false;
 	struct sock *sk;
 	int pending;
 
-	rec = container_of(aead_req, struct tls_rec, aead_req);
 	msg_en = &rec->msg_encrypted;
 
 	sk = rec->sk;
@@ -536,7 +534,7 @@  static int tls_do_encryption(struct sock *sk,
 			       data_len, rec->iv_data);
 
 	aead_request_set_callback(aead_req, CRYPTO_TFM_REQ_MAY_BACKLOG,
-				  tls_encrypt_done, aead_req);
+				  tls_encrypt_done, rec);
 
 	/* Add the record in tx_list */
 	list_add_tail((struct list_head *)&rec->list, &ctx->tx_list);