From: Chuck Lever <chuck.lever@oracle.com>
Date: Wed, 27 Aug 2008 20:57:38 +0000 (-0400)
Subject: lockd: Add address family-agnostic helper for zeroing the port number
X-Git-Tag: firefly_0821_release~17139^2~32
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=396cb3d003c2ce72b50c8c06fddfbb7516f30eb1;p=firefly-linux-kernel-4.4.55.git

lockd: Add address family-agnostic helper for zeroing the port number

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
---

diff --git a/fs/lockd/host.c b/fs/lockd/host.c
index 22423abea281..008e4026f540 100644
--- a/fs/lockd/host.c
+++ b/fs/lockd/host.c
@@ -40,6 +40,18 @@ static struct nsm_handle *	nsm_find(const struct sockaddr_in *sin,
 					 const char *hostname,
 					 unsigned int hostname_len);
 
+static void nlm_clear_port(struct sockaddr *sap)
+{
+	switch (sap->sa_family) {
+	case AF_INET:
+		((struct sockaddr_in *)sap)->sin_port = 0;
+		break;
+	case AF_INET6:
+		((struct sockaddr_in6 *)sap)->sin6_port = 0;
+		break;
+	}
+}
+
 static void nlm_display_address(const struct sockaddr *sap,
 				char *buf, const size_t len)
 {
@@ -154,7 +166,7 @@ static struct nlm_host *nlm_lookup_host(int server,
 	}
 	host->h_name	   = nsm->sm_name;
 	host->h_addr       = *sin;
-	host->h_addr.sin_port = 0;	/* ouch! */
+	nlm_clear_port((struct sockaddr *)&host->h_addr);
 	host->h_saddr	   = *ssin;
 	host->h_version    = version;
 	host->h_proto      = proto;