From: Jakub Kicinski <jakub.kicinski@netronome.com>
Date: Sun, 6 Oct 2019 21:09:31 -0700
Subject: net/tls: store async_capable on a single bit
Patch-mainline: v5.5-rc1
Git-commit: 5c5458ec9d631fbca29f53a944168265e18aa77a
References: bsc#1154353

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>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 include/net/tls.h |    4 ++--
 net/tls/tls_sw.c  |    5 +++--
 2 files changed, 5 insertions(+), 4 deletions(-)

--- a/include/net/tls.h
+++ b/include/net/tls.h
@@ -137,7 +137,7 @@ 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
@@ -153,7 +153,7 @@ 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;
--- a/net/tls/tls_sw.c
+++ b/net/tls/tls_sw.c
@@ -2392,10 +2392,11 @@ int tls_set_sw_offload(struct sock *sk,
 		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));