Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
  net: Remove CONFIG_KMOD from net/ (towards removing CONFIG_KMOD entirely)
  ipv4: Add a missing rcu_assign_pointer() in routing cache.
  [netdrvr] ibmtr: PCMCIA IBMTR is ok on 64bit
  xen-netfront: Avoid unaligned accesses to IP header
  lmc: copy_*_user under spinlock
  [netdrvr] myri10ge, ixgbe: remove broken select INTEL_IOATDMA

4 files changed, 8 insertions, 7 deletions

diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index 5154e729cf16..56fce3ab6c55 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -613,9 +613,7 @@ int devinet_ioctl(struct net *net, unsigned int cmd, void __user *arg)
         if (colon)
                 *colon = 0;
 
-#ifdef CONFIG_KMOD
         dev_load(net, ifr.ifr_name);
-#endif
 
         switch (cmd) {
         case SIOCGIFADDR:       /* Get interface address */
diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c
index 89cb047ab314..564230dabcb8 100644
--- a/net/ipv4/inet_diag.c
+++ b/net/ipv4/inet_diag.c
@@ -53,11 +53,9 @@ static DEFINE_MUTEX(inet_diag_table_mutex);
 
 static const struct inet_diag_handler *inet_diag_lock_handler(int type)
 {
-#ifdef CONFIG_KMOD
         if (!inet_diag_table[type])
                 request_module("net-pf-%d-proto-%d-type-%d", PF_NETLINK,
                                NETLINK_INET_DIAG, type);
-#endif
 
         mutex_lock(&inet_diag_table_mutex);
         if (!inet_diag_table[type])
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 942be04e7955..2ea6dcc3e2cc 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1109,7 +1109,12 @@ restart:
                 printk("\n");
         }
 #endif
-        rt_hash_table[hash].chain = rt;
+        /*
+         * Since lookup is lockfree, we must make sure
+         * previous writes to rt are comitted to memory
+         * before making rt visible to other CPUS.
+         */
+        rcu_assign_pointer(rt_hash_table[hash].chain, rt);
         spin_unlock_bh(rt_hash_lock_addr(hash));
         *rp = rt;
         return 0;
diff --git a/net/ipv4/tcp_cong.c b/net/ipv4/tcp_cong.c
index 6a250828b767..4ec5b4e97c4e 100644
--- a/net/ipv4/tcp_cong.c
+++ b/net/ipv4/tcp_cong.c
@@ -115,7 +115,7 @@ int tcp_set_default_congestion_control(const char *name)
 
         spin_lock(&tcp_cong_list_lock);
         ca = tcp_ca_find(name);
-#ifdef CONFIG_KMOD
+#ifdef CONFIG_MODULES
         if (!ca && capable(CAP_SYS_MODULE)) {
                 spin_unlock(&tcp_cong_list_lock);
 
@@ -244,7 +244,7 @@ int tcp_set_congestion_control(struct sock *sk, const char *name)
         if (ca == icsk->icsk_ca_ops)
                 goto out;
 
-#ifdef CONFIG_KMOD
+#ifdef CONFIG_MODULES
         /* not found attempt to autoload module */
         if (!ca && capable(CAP_SYS_MODULE)) {
                 rcu_read_unlock();