net: treewide use of RCU_INIT_POINTER

rcu_assign_pointer(ptr, NULL) can be safely replaced by
RCU_INIT_POINTER(ptr, NULL)

(old rcu_assign_pointer() macro was testing the NULL value and could
omit the smp_wmb(), but this had to be removed because of compiler
warnings)

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/net/ethernet/broadcom/cnic.c b/drivers/net/ethernet/broadcom/cnic.c
index 099f41d99ec0..b336e55e0d80 100644
--- a/drivers/net/ethernet/broadcom/cnic.c
+++ b/drivers/net/ethernet/broadcom/cnic.c
@@ -506,7 +506,7 @@ int cnic_unregister_driver(int ulp_type)
         }
         read_unlock(&cnic_dev_lock);
 
-        rcu_assign_pointer(cnic_ulp_tbl[ulp_type], NULL);
+        RCU_INIT_POINTER(cnic_ulp_tbl[ulp_type], NULL);
 
         mutex_unlock(&cnic_lock);
         synchronize_rcu();
@@ -579,7 +579,7 @@ static int cnic_unregister_device(struct cnic_dev *dev, int ulp_type)
         }
         mutex_lock(&cnic_lock);
         if (rcu_dereference(cp->ulp_ops[ulp_type])) {
-                rcu_assign_pointer(cp->ulp_ops[ulp_type], NULL);
+                RCU_INIT_POINTER(cp->ulp_ops[ulp_type], NULL);
                 cnic_put(dev);
         } else {
                 pr_err("%s: device not registered to this ulp type %d\n",
@@ -5134,7 +5134,7 @@ static void cnic_stop_hw(struct cnic_dev *dev)
                 }
                 cnic_shutdown_rings(dev);
                 clear_bit(CNIC_F_CNIC_UP, &dev->flags);
-                rcu_assign_pointer(cp->ulp_ops[CNIC_ULP_L4], NULL);
+                RCU_INIT_POINTER(cp->ulp_ops[CNIC_ULP_L4], NULL);
                 synchronize_rcu();
                 cnic_cm_shutdown(dev);
                 cp->stop_hw(dev);