[net-next,RESEND,v2,3/9] ibmvnic: Use/rename local vars in init_rx_pools

Commit Message

Sukadev Bhattiprolu Sept. 15, 2021, 3:52 a.m. UTC

To make the code more readable, use/rename some local variables.
Basically we have a set of pools, num_pools. Each pool has a set of
buffers, pool_size and each buffer is of size buff_size.

pool_size is a bit ambiguous (whether size in bytes or buffers). Add
a comment in the header file to make it explicit.

Reviewed-by: Rick Lindsley <[e-mail]>
Reviewed-by: Dany Madden <[e-mail]>
Signed-off-by: Sukadev Bhattiprolu <[e-mail]>
---
 drivers/net/ethernet/ibm/ibmvnic.c | 17 +++++++++--------
 drivers/net/ethernet/ibm/ibmvnic.h |  2 +-
 2 files changed, 10 insertions(+), 9 deletions(-)

Patch

diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index cd04c3eb6c41..688489475791 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -620,14 +620,16 @@  static int init_rx_pools(struct net_device *netdev)
 	struct ibmvnic_adapter *adapter = netdev_priv(netdev);
 	struct device *dev = &adapter->vdev->dev;
 	struct ibmvnic_rx_pool *rx_pool;
-	int rxadd_subcrqs;
+	u64 num_pools;
+	u64 pool_size;		/* # of buffers in one pool */
 	u64 buff_size;
 	int i, j;
 
-	rxadd_subcrqs = adapter->num_active_rx_scrqs;
+	num_pools = adapter->num_active_rx_scrqs;
+	pool_size = adapter->req_rx_add_entries_per_subcrq;
 	buff_size = adapter->cur_rx_buf_sz;
 
-	adapter->rx_pool = kcalloc(rxadd_subcrqs,
+	adapter->rx_pool = kcalloc(num_pools,
 				   sizeof(struct ibmvnic_rx_pool),
 				   GFP_KERNEL);
 	if (!adapter->rx_pool) {
@@ -638,17 +640,16 @@  static int init_rx_pools(struct net_device *netdev)
 	/* Set num_active_rx_pools early. If we fail below after partial
 	 * allocation, release_rx_pools() will know how many to look for.
 	 */
-	adapter->num_active_rx_pools = rxadd_subcrqs;
+	adapter->num_active_rx_pools = num_pools;
 
-	for (i = 0; i < rxadd_subcrqs; i++) {
+	for (i = 0; i < num_pools; i++) {
 		rx_pool = &adapter->rx_pool[i];
 
 		netdev_dbg(adapter->netdev,
 			   "Initializing rx_pool[%d], %lld buffs, %lld bytes each\n",
-			   i, adapter->req_rx_add_entries_per_subcrq,
-			   buff_size);
+			   i, pool_size, buff_size);
 
-		rx_pool->size = adapter->req_rx_add_entries_per_subcrq;
+		rx_pool->size = pool_size;
 		rx_pool->index = i;
 		rx_pool->buff_size = ALIGN(buff_size, L1_CACHE_BYTES);
 		rx_pool->active = 1;
diff --git a/drivers/net/ethernet/ibm/ibmvnic.h b/drivers/net/ethernet/ibm/ibmvnic.h
index 22df602323bc..5652566818fb 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.h
+++ b/drivers/net/ethernet/ibm/ibmvnic.h
@@ -827,7 +827,7 @@  struct ibmvnic_rx_buff {
 
 struct ibmvnic_rx_pool {
 	struct ibmvnic_rx_buff *rx_buff;
-	int size;
+	int size;			/* # of buffers in the pool */
 	int index;
 	int buff_size;
 	atomic_t available;