ibmvnic: Use/rename local vars in init_tx_pools

Use/rename local variables in init_tx_pools() for consistency with
init_rx_pools() and for readability. Also add some comments

Reviewed-by: Rick Lindsley <ricklind@linux.vnet.ibm.com>
Reviewed-by: Dany Madden <drt@linux.ibm.com>
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/ibm/ibmvnic.c

@@ -781,31 +781,31 @@ static void release_tx_pools(struct ibmvnic_adapter *adapter)
 
 static int init_one_tx_pool(struct net_device *netdev,
 			    struct ibmvnic_tx_pool *tx_pool,
-			    int num_entries, int buf_size)
+			    int pool_size, int buf_size)
 {
 	struct ibmvnic_adapter *adapter = netdev_priv(netdev);
 	int i;
 
-	tx_pool->tx_buff = kcalloc(num_entries,
+	tx_pool->tx_buff = kcalloc(pool_size,
 				   sizeof(struct ibmvnic_tx_buff),
 				   GFP_KERNEL);
 	if (!tx_pool->tx_buff)
 		return -1;
 
 	if (alloc_long_term_buff(adapter, &tx_pool->long_term_buff,
-				 num_entries * buf_size))
+				 pool_size * buf_size))
 		return -1;
 
-	tx_pool->free_map = kcalloc(num_entries, sizeof(int), GFP_KERNEL);
+	tx_pool->free_map = kcalloc(pool_size, sizeof(int), GFP_KERNEL);
 	if (!tx_pool->free_map)
 		return -1;
 
-	for (i = 0; i < num_entries; i++)
+	for (i = 0; i < pool_size; i++)
 		tx_pool->free_map[i] = i;
 
 	tx_pool->consumer_index = 0;
 	tx_pool->producer_index = 0;
-	tx_pool->num_buffers = num_entries;
+	tx_pool->num_buffers = pool_size;
 	tx_pool->buf_size = buf_size;
 
 	return 0;
@@ -815,17 +815,20 @@ static int init_tx_pools(struct net_device *netdev)
 {
 	struct ibmvnic_adapter *adapter = netdev_priv(netdev);
 	struct device *dev = &adapter->vdev->dev;
-	int tx_subcrqs;
+	int num_pools;
+	u64 pool_size;		/* # of buffers in pool */
 	u64 buff_size;
 	int i, rc;
 
-	tx_subcrqs = adapter->num_active_tx_scrqs;
-	adapter->tx_pool = kcalloc(tx_subcrqs,
+	pool_size = adapter->req_tx_entries_per_subcrq;
+	num_pools = adapter->num_active_tx_scrqs;
+
+	adapter->tx_pool = kcalloc(num_pools,
 				   sizeof(struct ibmvnic_tx_pool), GFP_KERNEL);
 	if (!adapter->tx_pool)
 		return -1;
 
-	adapter->tso_pool = kcalloc(tx_subcrqs,
+	adapter->tso_pool = kcalloc(num_pools,
 				    sizeof(struct ibmvnic_tx_pool), GFP_KERNEL);
 	/* To simplify release_tx_pools() ensure that ->tx_pool and
 	 * ->tso_pool are either both NULL or both non-NULL.
@@ -839,9 +842,9 @@ static int init_tx_pools(struct net_device *netdev)
 	/* Set num_active_tx_pools early. If we fail below after partial
 	 * allocation, release_tx_pools() will know how many to look for.
 	 */
-	adapter->num_active_tx_pools = tx_subcrqs;
+	adapter->num_active_tx_pools = num_pools;
 
-	for (i = 0; i < tx_subcrqs; i++) {
+	for (i = 0; i < num_pools; i++) {
 		buff_size = adapter->req_mtu + VLAN_HLEN;
 		buff_size = ALIGN(buff_size, L1_CACHE_BYTES);
 
@@ -849,8 +852,7 @@ static int init_tx_pools(struct net_device *netdev)
 			i, adapter->req_tx_entries_per_subcrq, buff_size);
 
 		rc = init_one_tx_pool(netdev, &adapter->tx_pool[i],
-				      adapter->req_tx_entries_per_subcrq,
-				      buff_size);
+				      pool_size, buff_size);
 		if (rc) {
 			release_tx_pools(adapter);
 			return rc;