decnet: RCU conversion and get rid of dev_base_lock

[net-next-2.6.git] / net / decnet / af_decnet.c

diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c
index d6b93d19790f003b92935c1b1da7700e8d788787..18b8a2cbdf77d647426ccde4209afcad0a758e1b 100644 (file)
--- a/net/decnet/af_decnet.c
+++ b/net/decnet/af_decnet.c
@@ -1848,7 +1848,7 @@ unsigned dn_mss_from_pmtu(struct net_device *dev, int mtu)
 {
        unsigned mss = 230 - DN_MAX_NSP_DATA_HEADER;
        if (dev) {
-               struct dn_dev *dn_db = dev->dn_ptr;
+               struct dn_dev *dn_db = rcu_dereference_raw(dev->dn_ptr);
                mtu -= LL_RESERVED_SPACE(dev);
                if (dn_db->use_long)
                        mtu -= 21;