[NETFILTER]: Fix ip6t_LOG MAC format

I broke this in the patch that consolidated MAC logging.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 7 insertions, 4 deletions

diff --git a/net/ipv6/netfilter/ip6t_LOG.c b/net/ipv6/netfilter/ip6t_LOG.c
index c44685e391b7..a692e26a4fa3 100644
--- a/net/ipv6/netfilter/ip6t_LOG.c
+++ b/net/ipv6/netfilter/ip6t_LOG.c
@@ -373,9 +373,10 @@ ip6t_log_packet(unsigned int hooknum,
                 in ? in->name : "",
                 out ? out->name : "");
         if (in && !out) {
+                unsigned int len;
                 /* MAC logging for input chain only. */
                 printk("MAC=");
-                if (skb->dev && skb->dev->hard_header_len &&
+                if (skb->dev && (len = skb->dev->hard_header_len) &&
                     skb->mac.raw != skb->nh.raw) {
                         unsigned char *p = skb->mac.raw;
                         int i;
@@ -384,9 +385,11 @@ ip6t_log_packet(unsigned int hooknum,
                             (p -= ETH_HLEN) < skb->head)
                                 p = NULL;
 
-                        if (p != NULL)
-                                for (i = 0; i < skb->dev->hard_header_len; i++)
-                                        printk("%02x", p[i]);
+                        if (p != NULL) {
+                                for (i = 0; i < len; i++)
+                                        printk("%02x%s", p[i],
+                                               i == len - 1 ? "" : ":");
+                        }
                         printk(" ");
 
                         if (skb->dev->type == ARPHRD_SIT) {