[PATCH CFT 09/30] net: fec: remove useless fep->opened
From: Russell King <hidden>
Date: 2014-06-27 15:19:39
Also in:
netdev
Subsystem:
freescale imx / mxc fec driver, networking drivers, the rest · Maintainers:
Wei Fang, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
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. Signed-off-by: Russell King <redacted> --- drivers/net/ethernet/freescale/fec.h | 1 - drivers/net/ethernet/freescale/fec_main.c | 5 ----- 2 files changed, 6 deletions(-)
diff --git a/drivers/net/ethernet/freescale/fec.h b/drivers/net/ethernet/freescale/fec.h
index 671d080105a7..96d2a18f1b99 100644
--- a/drivers/net/ethernet/freescale/fec.h
+++ b/drivers/net/ethernet/freescale/fec.h@@ -308,7 +308,6 @@ struct fec_enet_private { struct platform_device *pdev; - int opened; int dev_id; /* Phylib and MDIO interface */
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index e0a1ac1826b7..309aa2ff8cc9 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c@@ -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);
--
1.8.3.1