ionic: reduce the use of netdev

To help make sure we're only accessing things we really need
to access we can cut down on the q->lif->netdev references by
using q->dev which is already in cache.

Reviewed-by: Brett Creeley <brett.creeley@amd.com>
Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/pensando/ionic/ionic_txrx.c b/drivers/net/ethernet/pensando/ionic/ionic_txrx.c
index f217b98..ed09569 100644 (file)
--- a/drivers/net/ethernet/pensando/ionic/ionic_txrx.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_txrx.c
@@ -123,7 +123,6 @@ static unsigned int ionic_rx_buf_size(struct ionic_buf_info *buf_info)
 static int ionic_rx_page_alloc(struct ionic_queue *q,
                               struct ionic_buf_info *buf_info)
 {
-       struct net_device *netdev = q->lif->netdev;
        struct ionic_rx_stats *stats;
        struct device *dev;
        struct page *page;
@@ -133,14 +132,14 @@ static int ionic_rx_page_alloc(struct ionic_queue *q,
 
        if (unlikely(!buf_info)) {
                net_err_ratelimited("%s: %s invalid buf_info in alloc\n",
-                                   netdev->name, q->name);
+                                   dev_name(dev), q->name);
                return -EINVAL;
        }
 
        page = alloc_pages(IONIC_PAGE_GFP_MASK, 0);
        if (unlikely(!page)) {
                net_err_ratelimited("%s: %s page alloc failed\n",
-                                   netdev->name, q->name);
+                                   dev_name(dev), q->name);
                stats->alloc_err++;
                return -ENOMEM;
        }
@@ -150,7 +149,7 @@ static int ionic_rx_page_alloc(struct ionic_queue *q,
        if (unlikely(dma_mapping_error(dev, buf_info->dma_addr))) {
                __free_pages(page, 0);
                net_err_ratelimited("%s: %s dma map failed\n",
-                                   netdev->name, q->name);
+                                   dev_name(dev), q->name);
                stats->dma_map_err++;
                return -EIO;
        }
@@ -164,12 +163,11 @@ static int ionic_rx_page_alloc(struct ionic_queue *q,
 static void ionic_rx_page_free(struct ionic_queue *q,
                               struct ionic_buf_info *buf_info)
 {
-       struct net_device *netdev = q->lif->netdev;
        struct device *dev = q->dev;
 
        if (unlikely(!buf_info)) {
                net_err_ratelimited("%s: %s invalid buf_info in free\n",
-                                   netdev->name, q->name);
+                                   dev_name(dev), q->name);
                return;
        }
 
@@ -228,7 +226,7 @@ static struct sk_buff *ionic_rx_frags(struct net_device *netdev,
        skb = napi_get_frags(&q_to_qcq(q)->napi);
        if (unlikely(!skb)) {
                net_warn_ratelimited("%s: SKB alloc failed on %s!\n",
-                                    netdev->name, q->name);
+                                    dev_name(dev), q->name);
                stats->alloc_err++;
                return NULL;
        }
@@ -291,7 +289,7 @@ static struct sk_buff *ionic_rx_copybreak(struct net_device *netdev,
        skb = napi_alloc_skb(&q_to_qcq(q)->napi, len);
        if (unlikely(!skb)) {
                net_warn_ratelimited("%s: SKB alloc failed on %s!\n",
-                                    netdev->name, q->name);
+                                    dev_name(dev), q->name);
                stats->alloc_err++;
                return NULL;
        }
@@ -1086,7 +1084,7 @@ static dma_addr_t ionic_tx_map_single(struct ionic_queue *q,
        dma_addr = dma_map_single(dev, data, len, DMA_TO_DEVICE);
        if (dma_mapping_error(dev, dma_addr)) {
                net_warn_ratelimited("%s: DMA single map failed on %s!\n",
-                                    q->lif->netdev->name, q->name);
+                                    dev_name(dev), q->name);
                stats->dma_map_err++;
                return 0;
        }
@@ -1104,7 +1102,7 @@ static dma_addr_t ionic_tx_map_frag(struct ionic_queue *q,
        dma_addr = skb_frag_dma_map(dev, frag, offset, len, DMA_TO_DEVICE);
        if (dma_mapping_error(dev, dma_addr)) {
                net_warn_ratelimited("%s: DMA frag map failed on %s!\n",
-                                    q->lif->netdev->name, q->name);
+                                    dev_name(dev), q->name);
                stats->dma_map_err++;
        }
        return dma_addr;