diff options
| author | Julia Cartwright <julia@ni.com> | 2017-12-05 18:02:48 -0600 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-12-05 20:08:03 -0500 |
| commit | a3da8adcb54adf027661c704220ead5116b4ed8a (patch) | |
| tree | 3e023f8997e1ac4a35ead2c6adf28f2c03b9173b /drivers | |
| parent | 9a63b255dffd6de31fe47a80d16d26d0291d3714 (diff) | |
net: macb: kill useless use of list_empty()
The list_for_each_entry() macro already handles the case where the list
is empty (by not executing the loop body). It's not necessary to handle
this case specially, so stop doing so.
Cc: Rafal Ozieblo <rafalo@cadence.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Julia Cartwright <julia@ni.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/cadence/macb_main.c | 31 |
1 files changed, 12 insertions, 19 deletions
diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c index ebfeab853bf4..b7644836aba1 100644 --- a/drivers/net/ethernet/cadence/macb_main.c +++ b/drivers/net/ethernet/cadence/macb_main.c @@ -2812,24 +2812,20 @@ static int gem_add_flow_filter(struct net_device *netdev, htons(fs->h_u.tcp_ip4_spec.psrc), htons(fs->h_u.tcp_ip4_spec.pdst)); /* find correct place to add in list */ - if (list_empty(&bp->rx_fs_list.list)) - list_add(&newfs->list, &bp->rx_fs_list.list); - else { - list_for_each_entry(item, &bp->rx_fs_list.list, list) { - if (item->fs.location > newfs->fs.location) { - list_add_tail(&newfs->list, &item->list); - added = true; - break; - } else if (item->fs.location == fs->location) { - netdev_err(netdev, "Rule not added: location %d not free!\n", - fs->location); - ret = -EBUSY; - goto err; - } + list_for_each_entry(item, &bp->rx_fs_list.list, list) { + if (item->fs.location > newfs->fs.location) { + list_add_tail(&newfs->list, &item->list); + added = true; + break; + } else if (item->fs.location == fs->location) { + netdev_err(netdev, "Rule not added: location %d not free!\n", + fs->location); + ret = -EBUSY; + goto err; } - if (!added) - list_add_tail(&newfs->list, &bp->rx_fs_list.list); } + if (!added) + list_add_tail(&newfs->list, &bp->rx_fs_list.list); gem_prog_cmp_regs(bp, fs); bp->rx_fs_list.count++; @@ -2851,9 +2847,6 @@ static int gem_del_flow_filter(struct net_device *netdev, struct ethtool_rx_fs_item *item; struct ethtool_rx_flow_spec *fs; - if (list_empty(&bp->rx_fs_list.list)) - return -EINVAL; - list_for_each_entry(item, &bp->rx_fs_list.list, list) { if (item->fs.location == cmd->fs.location) { /* disable screener regs for the flow entry */ |