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net: fec: remove useless fep->opened 

napi_disable() waits until the NAPI processing has completed, and then
prevents any further polls.  At this point, the driver then clears
fep->opened.  The NAPI poll function uses this to stop processing in
the receive path.  Hence, it will never see this variable cleared,
because the NAPI poll has to complete before it will be cleared.

Therefore, this variable serves no purpose, so let's remove it.

Acked-by: Fugang Duan <B38611@freescale.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Russell King 2014-07-08 00:23:09 +01:00 committed by David S. Miller
parent d76cfae967
commit 5d165c5543
2 changed files with 0 additions and 6 deletions
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1
drivers/net/ethernet/freescale/fec.h
View File

@ -308,7 +308,6 @@ struct fec_enet_private {
struct platform_device *pdev;
int opened;
int dev_id;
/* Phylib and MDIO interface */

5
drivers/net/ethernet/freescale/fec_main.c
View File

@ -1215,9 +1215,6 @@ fec_enet_rx(struct net_device *ndev, int budget)
if ((status & BD_ENET_RX_LAST) == 0)
netdev_err(ndev, "rcv is not +last\n");
if (!fep->opened)
goto rx_processing_done;
/* Check for errors. */
if (status & (BD_ENET_RX_LG | BD_ENET_RX_SH | BD_ENET_RX_NO |
BD_ENET_RX_CR | BD_ENET_RX_OV)) {
@ -2172,7 +2169,6 @@ fec_enet_open(struct net_device *ndev)
napi_enable(&fep->napi);
phy_start(fep->phy_dev);
netif_start_queue(ndev);
fep->opened = 1;
return 0;
}
@ -2185,7 +2181,6 @@ fec_enet_close(struct net_device *ndev)
/* Don't know what to do yet. */
napi_disable(&fep->napi);
fep->opened = 0;
netif_tx_disable(ndev);
fec_stop(ndev);