diff options
| -rw-r--r-- | drivers/infiniband/ulp/ipoib/ipoib_cm.c | 8 | ||||
| -rw-r--r-- | drivers/infiniband/ulp/ipoib/ipoib_multicast.c | 5 |
2 files changed, 10 insertions, 3 deletions
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_cm.c b/drivers/infiniband/ulp/ipoib/ipoib_cm.c index 37bf67b2a26f..b4269139135b 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_cm.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_cm.c @@ -1440,7 +1440,9 @@ static ssize_t set_mode(struct device *d, struct device_attribute *attr, ipoib_warn(priv, "enabling connected mode " "will cause multicast packet drops\n"); + rtnl_lock(); dev->features &= ~(NETIF_F_IP_CSUM | NETIF_F_SG | NETIF_F_TSO); + rtnl_unlock(); priv->tx_wr.send_flags &= ~IB_SEND_IP_CSUM; ipoib_flush_paths(dev); @@ -1449,14 +1451,16 @@ static ssize_t set_mode(struct device *d, struct device_attribute *attr, if (!strcmp(buf, "datagram\n")) { clear_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags); - dev->mtu = min(priv->mcast_mtu, dev->mtu); - ipoib_flush_paths(dev); + rtnl_lock(); if (test_bit(IPOIB_FLAG_CSUM, &priv->flags)) { dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG; if (priv->hca_caps & IB_DEVICE_UD_TSO) dev->features |= NETIF_F_TSO; } + dev->mtu = min(priv->mcast_mtu, dev->mtu); + rtnl_unlock(); + ipoib_flush_paths(dev); return count; } diff --git a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c index 71add7a8d53c..be1ed38cdcfd 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c @@ -575,8 +575,11 @@ void ipoib_mcast_join_task(struct work_struct *work) priv->mcast_mtu = IPOIB_UD_MTU(ib_mtu_enum_to_int(priv->broadcast->mcmember.mtu)); - if (!ipoib_cm_admin_enabled(dev)) + if (!ipoib_cm_admin_enabled(dev)) { + rtnl_lock(); dev->mtu = min(priv->mcast_mtu, priv->admin_mtu); + rtnl_unlock(); + } ipoib_dbg_mcast(priv, "successfully joined all multicast groups\n"); |