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Subject[PATCH v2 4/5] net: ethernet: ti: cpsw: don't duplicate common res in rx handler
Date
No need to duplicate the same function in rx handler to get info
if any interface is running.

Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
---
drivers/net/ethernet/ti/cpsw.c | 40 ++++++++++++++++------------------------
1 file changed, 16 insertions(+), 24 deletions(-)

diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index c681d39..1f14afd 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -671,6 +671,18 @@ static void cpsw_intr_disable(struct cpsw_common *cpsw)
return;
}

+static int cpsw_get_usage_count(struct cpsw_common *cpsw)
+{
+ u32 i;
+ u32 usage_count = 0;
+
+ for (i = 0; i < cpsw->data.slaves; i++)
+ if (netif_running(cpsw->slaves[i].ndev))
+ usage_count++;
+
+ return usage_count;
+}
+
static void cpsw_tx_handler(void *token, int len, int status)
{
struct netdev_queue *txq;
@@ -703,18 +715,10 @@ static void cpsw_rx_handler(void *token, int len, int status)
cpsw_dual_emac_src_port_detect(cpsw, status, ndev, skb);

if (unlikely(status < 0) || unlikely(!netif_running(ndev))) {
- bool ndev_status = false;
- struct cpsw_slave *slave = cpsw->slaves;
- int n;
-
- if (cpsw->data.dual_emac) {
- /* In dual emac mode check for all interfaces */
- for (n = cpsw->data.slaves; n; n--, slave++)
- if (netif_running(slave->ndev))
- ndev_status = true;
- }
-
- if (ndev_status && (status >= 0)) {
+ /* In dual emac mode check for all interfaces */
+ if (cpsw->data.dual_emac &&
+ cpsw_get_usage_count(cpsw) &&
+ (status >= 0)) {
/* The packet received is for the interface which
* is already down and the other interface is up
* and running, instead of freeing which results
@@ -1234,18 +1238,6 @@ static void cpsw_get_ethtool_stats(struct net_device *ndev,
}
}

-static int cpsw_get_usage_count(struct cpsw_common *cpsw)
-{
- u32 i;
- u32 usage_count = 0;
-
- for (i = 0; i < cpsw->data.slaves; i++)
- if (netif_running(cpsw->slaves[i].ndev))
- usage_count++;
-
- return usage_count;
-}
-
static inline int cpsw_tx_packet_submit(struct cpsw_priv *priv,
struct sk_buff *skb,
struct cpdma_chan *txch)
--
2.7.4
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