net-procfs: Use vsnprintf extension %phN

Save a bit of code by using the kernel extension.

$ size net/core/net-procfs.o*
   text	   data	    bss	    dec	    hex	filename
   3701	    120	      0	   3821	    eed	net/core/net-procfs.o.new
   3764	    120	      0	   3884	    f2c	net/core/net-procfs.o.old

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 9 deletions

diff --git a/net/core/net-procfs.c b/net/core/net-procfs.c
index 14d09345f00d..4847964931df 100644
--- a/net/core/net-procfs.c
+++ b/net/core/net-procfs.c
@@ -363,15 +363,10 @@ static int dev_mc_seq_show(struct seq_file *seq, void *v)
 
         netif_addr_lock_bh(dev);
         netdev_for_each_mc_addr(ha, dev) {
-                int i;
-
-                seq_printf(seq, "%-4d %-15s %-5d %-5d ", dev->ifindex,
-                           dev->name, ha->refcount, ha->global_use);
-
-                for (i = 0; i < dev->addr_len; i++)
-                        seq_printf(seq, "%02x", ha->addr[i]);
-
-                seq_putc(seq, '\n');
+                seq_printf(seq, "%-4d %-15s %-5d %-5d %*phN\n",
+                           dev->ifindex, dev->name,
+                           ha->refcount, ha->global_use,
+                           (int)dev->addr_len, ha->addr);
         }
         netif_addr_unlock_bh(dev);
         return 0;