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authorXin Long <lucien.xin@gmail.com>2019-07-09 00:59:40 +0800
committerDavid S. Miller <davem@davemloft.net>2019-07-08 20:18:11 -0700
commit3cab2afb149ceedd324d14c6562224fb925252a6 (patch)
treef770202e3dc779b2d2ca2866358e39d2bf91b30a
parent6c6fbad6576fb19f93770feabcf2d0a30b4ae0e2 (diff)
sctp: remove rcu_read_lock from sctp_bind_addr_state
sctp_bind_addr_state() is called either in packet rcv path or by sctp_copy_local_addr_list(), which are under rcu_read_lock. So there's no need to call it again in sctp_bind_addr_state(). Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--net/sctp/bind_addr.c13
1 files changed, 4 insertions, 9 deletions
diff --git a/net/sctp/bind_addr.c b/net/sctp/bind_addr.c
index f54333cbbe0f..53bc61537f44 100644
--- a/net/sctp/bind_addr.c
+++ b/net/sctp/bind_addr.c
@@ -393,24 +393,19 @@ int sctp_bind_addr_state(const struct sctp_bind_addr *bp,
{
struct sctp_sockaddr_entry *laddr;
struct sctp_af *af;
- int state = -1;
af = sctp_get_af_specific(addr->sa.sa_family);
if (unlikely(!af))
- return state;
+ return -1;
- rcu_read_lock();
list_for_each_entry_rcu(laddr, &bp->address_list, list) {
if (!laddr->valid)
continue;
- if (af->cmp_addr(&laddr->a, addr)) {
- state = laddr->state;
- break;
- }
+ if (af->cmp_addr(&laddr->a, addr))
+ return laddr->state;
}
- rcu_read_unlock();
- return state;
+ return -1;
}
/* Find the first address in the bind address list that is not present in