diff options
| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2009-09-01 23:14:16 +0000 |
|---|---|---|
| committer | Alejandro Gonzalez <alex.gonzalez@digi.com> | 2010-02-12 17:19:09 +0100 |
| commit | 975f3927a09147f28d04c8ab61a0a37ba506f7de (patch) | |
| tree | 5d4ff5b967f9ff70d331e976818a202dd1a6fd0d /drivers/net | |
| parent | 13727c8ef7fc07ccb5ca29a40347ff71069b5ef4 (diff) | |
fec: don't enable irqs in hard irq context
fec_enet_mii, fec_enet_rx and fec_enet_tx are both only called by
fec_enet_interrupt in interrupt context. So they must not use
spin_lock_irq/spin_unlock_irq.
This fixes:
WARNING: at kernel/lockdep.c:2140 trace_hardirqs_on_caller+0x130/0x194()
...
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Greg Ungerer <gerg@uclinux.org>
Cc: Ben Hutchings <ben@decadent.org.uk>
Cc: Patrick McHardy <kaber@trash.net>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Matt Waddel <Matt.Waddel@freescale.com>
Cc: netdev@vger.kernel.org
Cc: Tim Sander <tim01@vlsi.informatik.tu-darmstadt.de>
Acked-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/fec.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/net/fec.c b/drivers/net/fec.c index ef826069d4e6..9c49d5696c3e 100644 --- a/drivers/net/fec.c +++ b/drivers/net/fec.c @@ -427,7 +427,7 @@ fec_enet_tx(struct net_device *dev) struct sk_buff *skb; fep = netdev_priv(dev); - spin_lock_irq(&fep->hw_lock); + spin_lock(&fep->hw_lock); bdp = fep->dirty_tx; while (((status = bdp->cbd_sc) & BD_ENET_TX_READY) == 0) { @@ -486,7 +486,7 @@ fec_enet_tx(struct net_device *dev) } } fep->dirty_tx = bdp; - spin_unlock_irq(&fep->hw_lock); + spin_unlock(&fep->hw_lock); } @@ -509,7 +509,7 @@ fec_enet_rx(struct net_device *dev) flush_cache_all(); #endif - spin_lock_irq(&fep->hw_lock); + spin_lock(&fep->hw_lock); /* First, grab all of the stats for the incoming packet. * These get messed up if we get called due to a busy condition. @@ -604,7 +604,7 @@ rx_processing_done: } fep->cur_rx = bdp; - spin_unlock_irq(&fep->hw_lock); + spin_unlock(&fep->hw_lock); } /* called from interrupt context */ @@ -615,7 +615,7 @@ fec_enet_mii(struct net_device *dev) mii_list_t *mip; fep = netdev_priv(dev); - spin_lock_irq(&fep->mii_lock); + spin_lock(&fep->mii_lock); if ((mip = mii_head) == NULL) { printk("MII and no head!\n"); @@ -633,7 +633,7 @@ fec_enet_mii(struct net_device *dev) writel(mip->mii_regval, fep->hwp + FEC_MII_DATA); unlock: - spin_unlock_irq(&fep->mii_lock); + spin_unlock(&fep->mii_lock); } static int |