ndisc: Reduce number of arguments for ndisc_fill_addr_option().

Add pointer to struct net_device (dev) and remove
data_len (= dev->addr_len) and addr_type (= dev->type).

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 6 insertions, 7 deletions

diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index 067a0d2eb557..49dfc2a73ee0 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -148,10 +148,11 @@ static inline int ndisc_opt_addr_space(struct net_device *dev)
         return NDISC_OPT_SPACE(dev->addr_len + ndisc_addr_option_pad(dev->type));
 }
 
-static u8 *ndisc_fill_addr_option(u8 *opt, int type, void *data, int data_len,
-                                  unsigned short addr_type)
+static u8 *ndisc_fill_addr_option(u8 *opt, int type, void *data,
+                                  struct net_device *dev)
 {
-        int pad   = ndisc_addr_option_pad(addr_type);
+        int pad   = ndisc_addr_option_pad(dev->type);
+        int data_len = dev->addr_len;
         int space = NDISC_OPT_SPACE(data_len + pad);
 
         opt[0] = type;
@@ -420,8 +421,7 @@ static struct sk_buff *ndisc_build_skb(struct net_device *dev,
         }
 
         if (llinfo)
-                ndisc_fill_addr_option(opt, llinfo, dev->dev_addr,
-                                       dev->addr_len, dev->type);
+                ndisc_fill_addr_option(opt, llinfo, dev->dev_addr, dev);
 
         hdr->icmp6_cksum = csum_ipv6_magic(saddr, daddr, len,
                                            IPPROTO_ICMPV6,
@@ -1469,8 +1469,7 @@ void ndisc_send_redirect(struct sk_buff *skb, const struct in6_addr *target)
          */
 
         if (ha)
-                opt = ndisc_fill_addr_option(opt, ND_OPT_TARGET_LL_ADDR, ha,
-                                             dev->addr_len, dev->type);
+                opt = ndisc_fill_addr_option(opt, ND_OPT_TARGET_LL_ADDR, ha, dev);
 
         /*
          *      build redirect option and copy skb over to the new packet.