net/tls: store async_capable on a single bit

Store async_capable on a single bit instead of a full integer to save space. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
mariux64 · Oct 7, 2019 · 5c5458e · 5c5458e
1 parent 4de30a8
commit 5c5458e
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Showing 2 changed files with 5 additions and 4 deletions.
diff --git a/include/net/tls.h b/include/net/tls.h
@@ -136,7 +136,7 @@ struct tls_sw_context_tx {
 	struct list_head tx_list;
 	atomic_t encrypt_pending;
 	int async_notify;
-	int async_capable;
+	u8 async_capable:1;
 
 #define BIT_TX_SCHEDULED	0
 #define BIT_TX_CLOSING		1
@@ -152,7 +152,7 @@ struct tls_sw_context_rx {
 
 	struct sk_buff *recv_pkt;
 	u8 control;
-	int async_capable;
+	u8 async_capable:1;
 	bool decrypted;
 	atomic_t decrypt_pending;
 	bool async_notify;

diff --git a/net/tls/tls_sw.c b/net/tls/tls_sw.c
@@ -2391,10 +2391,11 @@ int tls_set_sw_offload(struct sock *sk, struct tls_context *ctx, int tx)
 		tfm = crypto_aead_tfm(sw_ctx_rx->aead_recv);
 
 		if (crypto_info->version == TLS_1_3_VERSION)
-			sw_ctx_rx->async_capable = false;
+			sw_ctx_rx->async_capable = 0;
 		else
 			sw_ctx_rx->async_capable =
-				tfm->__crt_alg->cra_flags & CRYPTO_ALG_ASYNC;
+				!!(tfm->__crt_alg->cra_flags &
+				   CRYPTO_ALG_ASYNC);
 
 		/* Set up strparser */
 		memset(&cb, 0, sizeof(cb));