On Fri, Jul 27, 2018 at 12:21:07PM -0700, Joe Perches wrote:
On Fri, 2018-07-27 at 22:13 +0300, Ivan Khoronzhuk wrote:
Replace ugly macroses on functions.
Careful, see below.
diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
[]
@@ -565,40 +565,40 @@ static const struct cpsw_stats cpsw_gstrings_ch_stats[] = {
(func)(slave++, ##arg); \
} while (0)
-#define cpsw_dual_emac_src_port_detect(cpsw, status, ndev, skb) \
- do { \
- if (!cpsw->data.dual_emac) \
- break; \
- if (CPDMA_RX_SOURCE_PORT(status) == 1) { \
- ndev = cpsw->slaves[0].ndev; \
- skb->dev = ndev; \
- } else if (CPDMA_RX_SOURCE_PORT(status) == 2) { \
- ndev = cpsw->slaves[1].ndev; \
- skb->dev = ndev; \
- } \
- } while (0)
-#define cpsw_add_mcast(cpsw, priv, addr) \
- do { \
- if (cpsw->data.dual_emac) { \
- struct cpsw_slave *slave = cpsw->slaves + \
- priv->emac_port; \
- int slave_port = cpsw_get_slave_port( \
- slave->slave_num); \
- cpsw_ale_add_mcast(cpsw->ale, addr, \
- 1 << slave_port | ALE_PORT_HOST, \
- ALE_VLAN, slave->port_vlan, 0); \
- } else { \
- cpsw_ale_add_mcast(cpsw->ale, addr, \
- ALE_ALL_PORTS, \
- 0, 0, 0); \
- } \
- } while (0)
-
static inline int cpsw_get_slave_port(u32 slave_num)
{
return slave_num + 1;
}
+static inline void cpsw_src_port_detect(struct cpsw_common *cpsw, int status,
+ struct sk_buff *skb)
+{
+ if (!cpsw->data.dual_emac)
+ return;
+
+ if (CPDMA_RX_SOURCE_PORT(status) == 1)
+ skb->dev = cpsw->slaves[0].ndev;
+ else if (CPDMA_RX_SOURCE_PORT(status) == 2)
+ skb->dev = cpsw->slaves[1].ndev;
+}
perhaps better as a switch/case
not better, it's shorter.
+
+static void cpsw_add_mcast(struct cpsw_priv *priv, u8 *addr)
+{
+ struct cpsw_common *cpsw = priv->cpsw;
+
+ if (cpsw->data.dual_emac) {
+ struct cpsw_slave *slave = cpsw->slaves + priv->emac_port;
+ int slave_port = cpsw_get_slave_port(slave->slave_num);
+
+ cpsw_ale_add_mcast(cpsw->ale, addr,
+ 1 << slave_port | ALE_PORT_HOST,
+ ALE_VLAN, slave->port_vlan, 0);
+ return;
+ }
+
+ cpsw_ale_add_mcast(cpsw->ale, addr, ALE_ALL_PORTS, 0, 0, 0);
+}
+
static void cpsw_set_promiscious(struct net_device *ndev, bool enable)
{
struct cpsw_common *cpsw = ndev_to_cpsw(ndev);
@@ -706,7 +706,7 @@ static void cpsw_ndo_set_rx_mode(struct net_device *ndev)
/* program multicast address list into ALE register */
netdev_for_each_mc_addr(ha, ndev) {
- cpsw_add_mcast(cpsw, priv, (u8 *)ha->addr);
+ cpsw_add_mcast(priv, (u8 *)ha->addr);
}
}
}
@@ -801,7 +801,8 @@ static void cpsw_rx_handler(void *token, int len, int status)
int ret = 0;
struct cpsw_common *cpsw = ndev_to_cpsw(ndev);
- cpsw_dual_emac_src_port_detect(cpsw, status, ndev, skb);
+ cpsw_src_port_detect(cpsw, status, skb);
+ ndev = skb->dev;
This is not the same code as the new function
is not guaranteed to succeed or set skb->dev.
Guaranteed by above skb->dev is initialized already.
The function reflects previous macro.
Even more, seems that here is duplication of ndev=skb->dev;
It should be removed at init ), even if it 100% is optimized by complier.
So guaranteed a little more then needed ), will send v2 with removed
ndev = skb->dev at init if no objection.
if (unlikely(status < 0) || unlikely(!netif_running(ndev))) {
/* In dual emac mode check for all interfaces */
--
Regards,
Ivan Khoronzhuk
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