[PATCH] kill needless addrconf lock in sctp.

[YOSHIFUJI Hideaki / 吉藤英明 <yoshfuji@xxxxxxxxxxxxxx>]

Hello.

I don't think we really need to obtain this lock here.

Signed-off-by: Hideaki YOSHIFUJI <yoshfuji@xxxxxxxxxxxxxx>

After applying this patch, I think we can stop exporting
addrconf_lock.

===== net/sctp/ipv6.c 1.57 vs edited =====
--- 1.57/net/sctp/ipv6.c        2004-12-28 10:56:34 +09:00
+++ edited/net/sctp/ipv6.c      2005-01-07 12:29:26 +09:00
@@ -319,11 +319,8 @@
        struct inet6_ifaddr *ifp;
        struct sctp_sockaddr_entry *addr;
 
-       read_lock(&addrconf_lock);
-       if ((in6_dev = __in6_dev_get(dev)) == NULL) {
-               read_unlock(&addrconf_lock);
+       if ((in6_dev = in6_dev_get(dev)) == NULL)
                return;
-       }
 
        read_lock(&in6_dev->lock);
        for (ifp = in6_dev->addr_list; ifp; ifp = ifp->if_next) {
@@ -340,7 +337,7 @@
        }
 
        read_unlock(&in6_dev->lock);
-       read_unlock(&addrconf_lock);
+       in6_dev_put(in6_dev);
 }
 
 /* Initialize a sockaddr_storage from in incoming skb. */

-- 
Hideaki YOSHIFUJI @ USAGI Project <yoshfuji@xxxxxxxxxxxxxx>
GPG FP: 9022 65EB 1ECF 3AD1 0BDF  80D8 4807 F894 E062 0EEA