netdev - [PATCH net-next V3 07/16] net: fec: don't clear all rx queue bits when just one is being checked

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Date:	Tue,  5 Apr 2016 19:25:53 -0700
From:	Troy Kisky <troy.kisky@...ndarydevices.com>
To:	netdev@...r.kernel.org, davem@...emloft.net, fugang.duan@....com,
	lznuaa@...il.com
Cc:	fabio.estevam@....com, l.stach@...gutronix.de, andrew@...n.ch,
	tremyfr@...il.com, gerg@...inux.org,
	linux-arm-kernel@...ts.infradead.org, johannes@...solutions.net,
	stillcompiling@...il.com, sergei.shtylyov@...entembedded.com,
	arnd@...db.de, Troy Kisky <troy.kisky@...ndarydevices.com>
Subject: [PATCH net-next V3 07/16] net: fec: don't clear all rx queue bits when just one is being checked

FEC_ENET_RXF is 3 separate bits, we only check one queue
at a time. So, when the last queue is being checked, it is
bad to remove the interrupt on the 1st queue.

Also, since tx/rx interrupts are now cleared in the napi
routine and not the interrupt, it is not needed here any longer.

Signed-off-by: Troy Kisky <troy.kisky@...ndarydevices.com>

---
v3: change commit message
---
 drivers/net/ethernet/freescale/fec_main.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index 17140ea..3cd0cdf 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -1339,8 +1339,6 @@ static int fec_rxq(struct net_device *ndev, struct fec_enet_priv_rx_q *rxq,
 			break;
 		pkt_received++;
 
-		writel(FEC_ENET_RXF, fep->hwp + FEC_IEVENT);
-
 		/* Check for errors. */
 		status ^= BD_ENET_RX_LAST;
 		if (status & (BD_ENET_RX_LG | BD_ENET_RX_SH | BD_ENET_RX_NO |
-- 
2.5.0