netdev - [PATCH net] sctp: remove unnecessary asoc in sctp_has

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Date:   Mon, 26 Mar 2018 16:55:00 +0800
From:   Xin Long <lucien.xin@...il.com>
To:     network dev <netdev@...r.kernel.org>, linux-sctp@...r.kernel.org
Cc:     davem@...emloft.net,
        Marcelo Ricardo Leitner <marcelo.leitner@...il.com>,
        Neil Horman <nhorman@...driver.com>
Subject: [PATCH net] sctp: remove unnecessary asoc in sctp_has_association

After Commit dae399d7fdee ("sctp: hold transport instead of assoc
when lookup assoc in rx path"), it put transport instead of asoc
in sctp_has_association. Variable 'asoc' is not used any more.

So this patch is to remove it, while at it,  it also changes the
return type of sctp_has_association to bool, and does the same
for it's caller sctp_endpoint_is_peeled_off.

Signed-off-by: Xin Long <lucien.xin@...il.com>
---
 include/net/sctp/structs.h |  8 ++++----
 net/sctp/endpointola.c     |  8 ++++----
 net/sctp/input.c           | 13 ++++++-------
 3 files changed, 14 insertions(+), 15 deletions(-)

diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index 03e92dd..13e644d 100644
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -1337,12 +1337,12 @@ struct sctp_association *sctp_endpoint_lookup_assoc(
 	const struct sctp_endpoint *ep,
 	const union sctp_addr *paddr,
 	struct sctp_transport **);
-int sctp_endpoint_is_peeled_off(struct sctp_endpoint *,
-				const union sctp_addr *);
+bool sctp_endpoint_is_peeled_off(struct sctp_endpoint *ep,
+				 const union sctp_addr *paddr);
 struct sctp_endpoint *sctp_endpoint_is_match(struct sctp_endpoint *,
 					struct net *, const union sctp_addr *);
-int sctp_has_association(struct net *net, const union sctp_addr *laddr,
-			 const union sctp_addr *paddr);
+bool sctp_has_association(struct net *net, const union sctp_addr *laddr,
+			  const union sctp_addr *paddr);
 
 int sctp_verify_init(struct net *net, const struct sctp_endpoint *ep,
 		     const struct sctp_association *asoc,
diff --git a/net/sctp/endpointola.c b/net/sctp/endpointola.c
index 8b31468..e2f5a3e 100644
--- a/net/sctp/endpointola.c
+++ b/net/sctp/endpointola.c
@@ -349,8 +349,8 @@ struct sctp_association *sctp_endpoint_lookup_assoc(
 /* Look for any peeled off association from the endpoint that matches the
  * given peer address.
  */
-int sctp_endpoint_is_peeled_off(struct sctp_endpoint *ep,
-				const union sctp_addr *paddr)
+bool sctp_endpoint_is_peeled_off(struct sctp_endpoint *ep,
+				 const union sctp_addr *paddr)
 {
 	struct sctp_sockaddr_entry *addr;
 	struct sctp_bind_addr *bp;
@@ -362,10 +362,10 @@ int sctp_endpoint_is_peeled_off(struct sctp_endpoint *ep,
 	 */
 	list_for_each_entry(addr, &bp->address_list, list) {
 		if (sctp_has_association(net, &addr->a, paddr))
-			return 1;
+			return true;
 	}
 
-	return 0;
+	return false;
 }
 
 /* Do delayed input processing.  This is scheduled by sctp_rcv().
diff --git a/net/sctp/input.c b/net/sctp/input.c
index b381d78..ba8a6e6 100644
--- a/net/sctp/input.c
+++ b/net/sctp/input.c
@@ -1010,19 +1010,18 @@ struct sctp_association *sctp_lookup_association(struct net *net,
 }
 
 /* Is there an association matching the given local and peer addresses? */
-int sctp_has_association(struct net *net,
-			 const union sctp_addr *laddr,
-			 const union sctp_addr *paddr)
+bool sctp_has_association(struct net *net,
+			  const union sctp_addr *laddr,
+			  const union sctp_addr *paddr)
 {
-	struct sctp_association *asoc;
 	struct sctp_transport *transport;
 
-	if ((asoc = sctp_lookup_association(net, laddr, paddr, &transport))) {
+	if (sctp_lookup_association(net, laddr, paddr, &transport)) {
 		sctp_transport_put(transport);
-		return 1;
+		return true;
 	}
 
-	return 0;
+	return false;
 }
 
 /*
-- 
2.1.0