[v3,net-next] net: ethernet: ti: cpsw: replace unnecessarily macroses on functions
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Message ID 20180727225725.3843-1-ivan.khoronzhuk@linaro.org
State New
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Series
  • [v3,net-next] net: ethernet: ti: cpsw: replace unnecessarily macroses on functions
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Commit Message

Ivan Khoronzhuk July 27, 2018, 10:57 p.m. UTC
Replace ugly macroses on functions.

Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
---

Based on net-next/master

v2..v1:
 - removed inline for cpsw_src_port_detect()

 drivers/net/ethernet/ti/cpsw.c | 63 +++++++++++++++++-----------------
 1 file changed, 32 insertions(+), 31 deletions(-)

Comments

Joe Perches July 27, 2018, 11:30 p.m. UTC | #1
On Sat, 2018-07-28 at 01:57 +0300, Ivan Khoronzhuk wrote:
> Replace ugly macroses on functions.

trivia:

As cpsw_src_port_detect is only used once, and is a
very small function, it might make the code more
intelligible to just directly code it where it's used.

> 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[] = {
[]
> +static 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;
> +}
[]
> @@ -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);

here

> +	ndev = skb->dev;
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Ivan Khoronzhuk July 28, 2018, 2:41 p.m. UTC | #2
On Fri, Jul 27, 2018 at 04:30:54PM -0700, Joe Perches wrote:
>On Sat, 2018-07-28 at 01:57 +0300, Ivan Khoronzhuk wrote:
>> Replace ugly macroses on functions.
>
>trivia:
>
>As cpsw_src_port_detect is only used once, and is a
>very small function, it might make the code more
>intelligible to just directly code it where it's used.
>
>> 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[] = {
>[]
>> +static 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;
>> +}
>[]
>> @@ -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);
>
>here
Can put here, instead of function, the following:
	if (cpsw->data.dual_emac) {
		port = CPDMA_RX_SOURCE_PORT(status);
		if (port) {
			ndev = cpsw->slaves[--port].ndev;
			skb->dev = ndev;
		}
	}

if no objection ofc.

>
>> +	ndev = skb->dev;

Patch
diff mbox series

diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index 1b54c26c2bec..9cacfe4ad065 100644
--- 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 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;
+}
+
+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;
 
 	if (unlikely(status < 0) || unlikely(!netif_running(ndev))) {
 		/* In dual emac mode check for all interfaces */