net/smc: fix direct access to ib_gid_addr->ndev in smc_ib_determine_g…

…id() Sparse complaints 3 times about: net/smc/smc_ib.c:203:52: warning: incorrect type in argument 1 (different address spaces) net/smc/smc_ib.c:203:52: expected struct net_device const *dev net/smc/smc_ib.c:203:52: got struct net_device [noderef] __rcu *const ndev Fix that by using the existing and validated ndev variable instead of accessing attr->ndev directly. Fixes: 5102eca ("net/smc: Use rdma_read_gid_l2_fields to L2 fields") Signed-off-by: Karsten Graul <[email protected]> Signed-off-by: Jakub Kicinski <[email protected]>
zandrey · Nov 19, 2020 · 41a0be3 · 41a0be3
1 parent 0530bd6
commit 41a0be3
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/net/smc/smc_ib.c b/net/smc/smc_ib.c
@@ -198,9 +198,9 @@ int smc_ib_determine_gid(struct smc_ib_device *smcibdev, u8 ibport,
 		rcu_read_lock();
 		ndev = rdma_read_gid_attr_ndev_rcu(attr);
 		if (!IS_ERR(ndev) &&
-		    ((!vlan_id && !is_vlan_dev(attr->ndev)) ||
-		     (vlan_id && is_vlan_dev(attr->ndev) &&
-		      vlan_dev_vlan_id(attr->ndev) == vlan_id)) &&
+		    ((!vlan_id && !is_vlan_dev(ndev)) ||
+		     (vlan_id && is_vlan_dev(ndev) &&
+		      vlan_dev_vlan_id(ndev) == vlan_id)) &&
 		    attr->gid_type == IB_GID_TYPE_ROCE) {
 			rcu_read_unlock();
 			if (gid)