netdev - [PATCH net-next 6/6] net/tls: store decrypted on a single bit

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Date:   Sun,  6 Oct 2019 21:09:32 -0700
From:   Jakub Kicinski <jakub.kicinski@...ronome.com>
To:     davem@...emloft.net
Cc:     netdev@...r.kernel.org, oss-drivers@...ronome.com,
        davejwatson@...com, borisp@...lanox.com, aviadye@...lanox.com,
        john.fastabend@...il.com, daniel@...earbox.net,
        Jakub Kicinski <jakub.kicinski@...ronome.com>,
        Simon Horman <simon.horman@...ronome.com>
Subject: [PATCH net-next 6/6] net/tls: store decrypted on a single bit

Use a single bit instead of boolean to remember if packet
was already decrypted.

Signed-off-by: Jakub Kicinski <jakub.kicinski@...ronome.com>
Reviewed-by: Simon Horman <simon.horman@...ronome.com>
---
 include/net/tls.h | 2 +-
 net/tls/tls_sw.c  | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/include/net/tls.h b/include/net/tls.h
index 97eae7271a67..41265e542e71 100644
--- a/include/net/tls.h
+++ b/include/net/tls.h
@@ -153,7 +153,7 @@ struct tls_sw_context_rx {
 	struct sk_buff *recv_pkt;
 	u8 control;
 	u8 async_capable:1;
-	bool decrypted;
+	u8 decrypted:1;
 	atomic_t decrypt_pending;
 	bool async_notify;
 };
diff --git a/net/tls/tls_sw.c b/net/tls/tls_sw.c
index c006b587a7db..de7561d4cfa5 100644
--- a/net/tls/tls_sw.c
+++ b/net/tls/tls_sw.c
@@ -1523,7 +1523,7 @@ static int decrypt_skb_update(struct sock *sk, struct sk_buff *skb,
 		rxm->offset += prot->prepend_size;
 		rxm->full_len -= prot->overhead_size;
 		tls_advance_record_sn(sk, prot, &tls_ctx->rx);
-		ctx->decrypted = true;
+		ctx->decrypted = 1;
 		ctx->saved_data_ready(sk);
 	} else {
 		*zc = false;
@@ -1933,7 +1933,7 @@ ssize_t tls_sw_splice_read(struct socket *sock,  loff_t *ppos,
 			tls_err_abort(sk, EBADMSG);
 			goto splice_read_end;
 		}
-		ctx->decrypted = true;
+		ctx->decrypted = 1;
 	}
 	rxm = strp_msg(skb);
 
@@ -2034,7 +2034,7 @@ static void tls_queue(struct strparser *strp, struct sk_buff *skb)
 	struct tls_context *tls_ctx = tls_get_ctx(strp->sk);
 	struct tls_sw_context_rx *ctx = tls_sw_ctx_rx(tls_ctx);
 
-	ctx->decrypted = false;
+	ctx->decrypted = 0;
 
 	ctx->recv_pkt = skb;
 	strp_pause(strp);
-- 
2.21.0