[IPV6]: Use in6addr_any where appropriate.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>

2 files changed, 12 insertions, 11 deletions

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 7df04d294924..e93fa62089f8 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2745,7 +2745,6 @@ static void addrconf_dad_timer(unsigned long data)
 {
         struct inet6_ifaddr *ifp = (struct inet6_ifaddr *) data;
         struct inet6_dev *idev = ifp->idev;
-        struct in6_addr unspec;
         struct in6_addr mcaddr;
 
         read_lock_bh(&idev->lock);
@@ -2774,9 +2773,8 @@ static void addrconf_dad_timer(unsigned long data)
         read_unlock_bh(&idev->lock);
 
         /* send a neighbour solicitation for our addr */
-        memset(&unspec, 0, sizeof(unspec));
         addrconf_addr_solict_mult(&ifp->addr, &mcaddr);
-        ndisc_send_ns(ifp->idev->dev, NULL, &ifp->addr, &mcaddr, &unspec);
+        ndisc_send_ns(ifp->idev->dev, NULL, &ifp->addr, &mcaddr, &in6addr_any);
 out:
         in6_ifa_put(ifp);
 }
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index c2dc2e2b6c07..54f91efdae58 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -1404,6 +1404,7 @@ static struct sk_buff *mld_newpack(struct net_device *dev, int size)
         struct sk_buff *skb;
         struct mld2_report *pmr;
         struct in6_addr addr_buf;
+        const struct in6_addr *saddr;
         int err;
         u8 ra[8] = { IPPROTO_ICMPV6, 0,
                      IPV6_TLV_ROUTERALERT, 2, 0, 0,
@@ -1422,10 +1423,11 @@ static struct sk_buff *mld_newpack(struct net_device *dev, int size)
                  * use unspecified address as the source address
                  * when a valid link-local address is not available.
                  */
-                memset(&addr_buf, 0, sizeof(addr_buf));
-        }
+                saddr = &in6addr_any;
+        } else
+                saddr = &addr_buf;
 
-        ip6_nd_hdr(sk, skb, dev, &addr_buf, &mld2_all_mcr, NEXTHDR_HOP, 0);
+        ip6_nd_hdr(sk, skb, dev, saddr, &mld2_all_mcr, NEXTHDR_HOP, 0);
 
         memcpy(skb_put(skb, sizeof(ra)), ra, sizeof(ra));
 
@@ -1766,7 +1768,7 @@ static void igmp6_send(struct in6_addr *addr, struct net_device *dev, int type)
         struct inet6_dev *idev;
         struct sk_buff *skb;
         struct icmp6hdr *hdr;
-        const struct in6_addr *snd_addr;
+        const struct in6_addr *snd_addr, *saddr;
         struct in6_addr *addrp;
         struct in6_addr addr_buf;
         int err, len, payload_len, full_len;
@@ -1805,10 +1807,11 @@ static void igmp6_send(struct in6_addr *addr, struct net_device *dev, int type)
                  * use unspecified address as the source address
                  * when a valid link-local address is not available.
                  */
-                memset(&addr_buf, 0, sizeof(addr_buf));
-        }
+                saddr = &in6addr_any;
+        } else
+                saddr = &addr_buf;
 
-        ip6_nd_hdr(sk, skb, dev, &addr_buf, snd_addr, NEXTHDR_HOP, payload_len);
+        ip6_nd_hdr(sk, skb, dev, saddr, snd_addr, NEXTHDR_HOP, payload_len);
 
         memcpy(skb_put(skb, sizeof(ra)), ra, sizeof(ra));
 
@@ -1819,7 +1822,7 @@ static void igmp6_send(struct in6_addr *addr, struct net_device *dev, int type)
         addrp = (struct in6_addr *) skb_put(skb, sizeof(struct in6_addr));
         ipv6_addr_copy(addrp, addr);
 
-        hdr->icmp6_cksum = csum_ipv6_magic(&addr_buf, snd_addr, len,
+        hdr->icmp6_cksum = csum_ipv6_magic(saddr, snd_addr, len,
                                            IPPROTO_ICMPV6,
                                            csum_partial((__u8 *) hdr, len, 0));