[PATCH net-next] tipc: Use is_broadcast_ether_addr() instead of memcmp()
From: Huang Guobin <hidden>
Date: 2020-08-03 01:52:42
Also in:
lkml
Subsystem:
networking [general], the rest, tipc network layer · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds, Jon Maloy, Tung Quang Nguyen
Using is_broadcast_ether_addr() instead of directly use memcmp() to determine if the ethernet address is broadcast address. spatch with a semantic match is used to found this problem. (http://coccinelle.lip6.fr/) Signed-off-by: Huang Guobin <redacted> --- net/tipc/eth_media.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/net/tipc/eth_media.c b/net/tipc/eth_media.c
index 8b0bb600602d..c68019697cfe 100644
--- a/net/tipc/eth_media.c
+++ b/net/tipc/eth_media.c@@ -62,12 +62,10 @@ static int tipc_eth_raw2addr(struct tipc_bearer *b, struct tipc_media_addr *addr, char *msg) { - char bcast_mac[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; - memset(addr, 0, sizeof(*addr)); ether_addr_copy(addr->value, msg); addr->media_id = TIPC_MEDIA_TYPE_ETH; - addr->broadcast = !memcmp(addr->value, bcast_mac, ETH_ALEN); + addr->broadcast = is_broadcast_ether_addr(addr->value); return 0; }
--
2.17.1