Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfashe...

[linux-2.6] / include / net / ip.h

diff --git a/include/net/ip.h b/include/net/ip.h
index 840dd91b513b0ec5000738af3773eda478bba13b..50c8889b1b8d7e6625cf4580a673c9a516e27bfd 100644 (file)
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -266,20 +266,22 @@ static inline void ip_eth_mc_map(__be32 naddr, char *buf)
  *     Leave P_Key as 0 to be filled in by driver.
  */
 
-static inline void ip_ib_mc_map(__be32 naddr, char *buf)
+static inline void ip_ib_mc_map(__be32 naddr, const unsigned char *broadcast, char *buf)
 {
        __u32 addr;
+       unsigned char scope = broadcast[5] & 0xF;
+
        buf[0]  = 0;            /* Reserved */
        buf[1]  = 0xff;         /* Multicast QPN */
        buf[2]  = 0xff;
        buf[3]  = 0xff;
        addr    = ntohl(naddr);
        buf[4]  = 0xff;
-       buf[5]  = 0x12;         /* link local scope */
+       buf[5]  = 0x10 | scope; /* scope from broadcast address */
        buf[6]  = 0x40;         /* IPv4 signature */
        buf[7]  = 0x1b;
-       buf[8]  = 0;            /* P_Key */
-       buf[9]  = 0;
+       buf[8]  = broadcast[8];         /* P_Key */
+       buf[9]  = broadcast[9];
        buf[10] = 0;
        buf[11] = 0;
        buf[12] = 0;