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forcedeth: remove duplicate structure member in rx 

Since both first_rx_ctx and rx_skb are the head of rx ctx, it not
necessary to use two structure members to statically indicate
the head of rx ctx. So first_rx_ctx is removed.

CC: Srinivas Eeda <srinivas.eeda@oracle.com>
CC: Joe Jin <joe.jin@oracle.com>
CC: Junxiao Bi <junxiao.bi@oracle.com>
Signed-off-by: Zhu Yanjun <yanjun.zhu@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Zhu Yanjun 2018-01-23 02:03:37 -05:00 committed by David S. Miller
parent d76632751a
commit a9124ec443
1 changed files with 7 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/net/ethernet/nvidia/forcedeth.c
View File

@ -795,7 +795,7 @@ struct fe_priv {
*/
union ring_type get_rx, put_rx, last_rx;
struct nv_skb_map *get_rx_ctx, *put_rx_ctx;
struct nv_skb_map *first_rx_ctx, *last_rx_ctx;
struct nv_skb_map *last_rx_ctx;
struct nv_skb_map *rx_skb;
union ring_type rx_ring;
@ -1835,7 +1835,7 @@ static int nv_alloc_rx(struct net_device *dev)
if (unlikely(np->put_rx.orig++ == np->last_rx.orig))
np->put_rx.orig = np->rx_ring.orig;
if (unlikely(np->put_rx_ctx++ == np->last_rx_ctx))
np->put_rx_ctx = np->first_rx_ctx;
np->put_rx_ctx = np->rx_skb;
} else {
packet_dropped:
u64_stats_update_begin(&np->swstats_rx_syncp);
@ -1877,7 +1877,7 @@ static int nv_alloc_rx_optimized(struct net_device *dev)
if (unlikely(np->put_rx.ex++ == np->last_rx.ex))
np->put_rx.ex = np->rx_ring.ex;
if (unlikely(np->put_rx_ctx++ == np->last_rx_ctx))
np->put_rx_ctx = np->first_rx_ctx;
np->put_rx_ctx = np->rx_skb;
} else {
packet_dropped:
u64_stats_update_begin(&np->swstats_rx_syncp);
@ -1910,7 +1910,8 @@ static void nv_init_rx(struct net_device *dev)
np->last_rx.orig = &np->rx_ring.orig[np->rx_ring_size-1];
else
np->last_rx.ex = &np->rx_ring.ex[np->rx_ring_size-1];
np->get_rx_ctx = np->put_rx_ctx = np->first_rx_ctx = np->rx_skb;
np->get_rx_ctx = np->rx_skb;
np->put_rx_ctx = np->rx_skb;
np->last_rx_ctx = &np->rx_skb[np->rx_ring_size-1];
for (i = 0; i < np->rx_ring_size; i++) {
@ -2914,7 +2915,7 @@ static int nv_rx_process(struct net_device *dev, int limit)
if (unlikely(np->get_rx.orig++ == np->last_rx.orig))
np->get_rx.orig = np->rx_ring.orig;
if (unlikely(np->get_rx_ctx++ == np->last_rx_ctx))
np->get_rx_ctx = np->first_rx_ctx;
np->get_rx_ctx = np->rx_skb;
rx_work++;
}
@ -3003,7 +3004,7 @@ static int nv_rx_process_optimized(struct net_device *dev, int limit)
if (unlikely(np->get_rx.ex++ == np->last_rx.ex))
np->get_rx.ex = np->rx_ring.ex;
if (unlikely(np->get_rx_ctx++ == np->last_rx_ctx))
np->get_rx_ctx = np->first_rx_ctx;
np->get_rx_ctx = np->rx_skb;
rx_work++;
}