net: hns3: some cleanup for struct hns3_enet_ring

This patch removes some unused field in struct hns3_enet_ring,
use ring->dev for ring_to_dev macro, and use dev consistently
in hns3_fill_desc.
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/hisilicon/hns3/hns3_enet.c

@@ -1051,7 +1051,7 @@ static int hns3_fill_desc(struct hns3_enet_ring *ring, void *priv,
 		dma = skb_frag_dma_map(dev, frag, 0, size, DMA_TO_DEVICE);
 	}
 
-	if (unlikely(dma_mapping_error(ring->dev, dma))) {
+	if (unlikely(dma_mapping_error(dev, dma))) {
 		ring->stats.sw_err_cnt++;
 		return -ENOMEM;
 	}

drivers/net/ethernet/hisilicon/hns3/hns3_enet.h

@@ -401,7 +401,6 @@ struct hns3_enet_ring {
 	struct hns3_enet_ring *next;
 	struct hns3_enet_tqp_vector *tqp_vector;
 	struct hnae3_queue *tqp;
-	char ring_name[HNS3_RING_NAME_LEN];
 	struct device *dev; /* will be used for DMA mapping of descriptors */
 
 	/* statistic */
@@ -411,9 +410,6 @@ struct hns3_enet_ring {
 	dma_addr_t desc_dma_addr;
 	u32 buf_size;       /* size for hnae_desc->addr, preset by AE */
 	u16 desc_num;       /* total number of desc */
-	u16 max_desc_num_per_pkt;
-	u16 max_raw_data_sz_per_desc;
-	u16 max_pkt_size;
 	int next_to_use;    /* idx of next spare desc */
 
 	/* idx of lastest sent desc, the ring is empty when equal to
@@ -427,9 +423,6 @@ struct hns3_enet_ring {
 
 	u32 flag;          /* ring attribute */
 
-	int numa_node;
-	cpumask_t affinity_mask;
-
 	int pending_buf;
 	struct sk_buff *skb;
 	struct sk_buff *tail_skb;
@@ -629,7 +622,7 @@ static inline bool hns3_nic_resetting(struct net_device *netdev)
 #define hnae3_queue_xmit(tqp, buf_num) writel_relaxed(buf_num, \
 		(tqp)->io_base + HNS3_RING_TX_RING_TAIL_REG)
 
-#define ring_to_dev(ring) (&(ring)->tqp->handle->pdev->dev)
+#define ring_to_dev(ring) ((ring)->dev)
 
 #define ring_to_dma_dir(ring) (HNAE3_IS_TX_RING(ring) ? \
 	DMA_TO_DEVICE : DMA_FROM_DEVICE)