X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fnet%2Ftap%2Ftap_netlink.c;h=6de896ab17b67824cc982fa585544f0af612dd7b;hb=c0bddd3a057f1ef34d2d5aa69e7338caa82de2bf;hp=9710e41a7801cd579fbeeb4e13307ffb2f71b99f;hpb=0b3e4ab9bf96aba051f9fce88062250dc86ee328;p=dpdk.git

diff --git a/drivers/net/tap/tap_netlink.c b/drivers/net/tap/tap_netlink.c
index 9710e41a78..6de896ab17 100644
--- a/drivers/net/tap/tap_netlink.c
+++ b/drivers/net/tap/tap_netlink.c
@@ -55,14 +55,21 @@ struct nested_tail {
 /**
  * Initialize a netlink socket for communicating with the kernel.
  *
+ * @param nl_groups
+ *   Set it to a netlink group value (e.g. RTMGRP_LINK) to receive messages for
+ *   specific netlink multicast groups. Otherwise, no subscription will be made.
+ *
  * @return
  *   netlink socket file descriptor on success, -1 otherwise.
  */
 int
-nl_init(void)
+nl_init(uint32_t nl_groups)
 {
 	int fd, sndbuf_size = SNDBUF_SIZE, rcvbuf_size = RCVBUF_SIZE;
-	struct sockaddr_nl local = { .nl_family = AF_NETLINK };
+	struct sockaddr_nl local = {
+		.nl_family = AF_NETLINK,
+		.nl_groups = nl_groups,
+	};
 
 	fd = socket(AF_NETLINK, SOCK_RAW | SOCK_CLOEXEC, NETLINK_ROUTE);
 	if (fd < 0) {