tcp: replace ehash_size by ehash_mask

Storing the mask (size - 1) instead of the size allows fast path to be
a bit faster.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/net/ipv4/inet_timewait_sock.c b/net/ipv4/inet_timewait_sock.c
index 13f0781f35cd..2fe571155b22 100644
--- a/net/ipv4/inet_timewait_sock.c
+++ b/net/ipv4/inet_timewait_sock.c
@@ -430,7 +430,7 @@ void inet_twsk_purge(struct net *net, struct inet_hashinfo *hashinfo,
         int h;
 
         local_bh_disable();
-        for (h = 0; h < (hashinfo->ehash_size); h++) {
+        for (h = 0; h <= hashinfo->ehash_mask; h++) {
                 struct inet_ehash_bucket *head =
                         inet_ehash_bucket(hashinfo, h);
                 spinlock_t *lock = inet_ehash_lockp(hashinfo, h);