net/packet: constify __packet_get_status() argument

struct packet_sock  is only read.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 7fa847d..66fcfd5 100644 (file)
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -384,7 +384,7 @@ static void __packet_set_status(struct packet_sock *po, void *frame, int status)
        smp_wmb();
 }
 
-static int __packet_get_status(struct packet_sock *po, void *frame)
+static int __packet_get_status(const struct packet_sock *po, void *frame)
 {
        union tpacket_uhdr h;