[PATCH] via-rhine: revert "change mdelay to msleep and remove from ISR path"
Revert previous patch with subject "change mdelay to msleep and remove
from ISR path". This patch seems to have caused bigger problems than
it solved, and it didn't solve much of a problem to begin with...
Discussion about backing-out this patch can be found here:
http://marc.theaimsgroup.com/?l=linux-netdev&m=114321570402396&w=2
The git commit associated w/ the original patch is:
6ba98d311d0a4ff7dc36d8f435ce60174f4c30ec
Signed-off-by: John W. Linville <linville@tuxdriver.com
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/net/via-rhine.c b/drivers/net/via-rhine.c
index a6dc53b..fdc2103 100644
--- a/drivers/net/via-rhine.c
+++ b/drivers/net/via-rhine.c
@@ -491,8 +491,6 @@
u8 tx_thresh, rx_thresh;
struct mii_if_info mii_if;
- struct work_struct tx_timeout_task;
- struct work_struct check_media_task;
void __iomem *base;
};
@@ -500,8 +498,6 @@
static void mdio_write(struct net_device *dev, int phy_id, int location, int value);
static int rhine_open(struct net_device *dev);
static void rhine_tx_timeout(struct net_device *dev);
-static void rhine_tx_timeout_task(struct net_device *dev);
-static void rhine_check_media_task(struct net_device *dev);
static int rhine_start_tx(struct sk_buff *skb, struct net_device *dev);
static irqreturn_t rhine_interrupt(int irq, void *dev_instance, struct pt_regs *regs);
static void rhine_tx(struct net_device *dev);
@@ -856,12 +852,6 @@
if (rp->quirks & rqRhineI)
dev->features |= NETIF_F_SG|NETIF_F_HW_CSUM;
- INIT_WORK(&rp->tx_timeout_task,
- (void (*)(void *))rhine_tx_timeout_task, dev);
-
- INIT_WORK(&rp->check_media_task,
- (void (*)(void *))rhine_check_media_task, dev);
-
/* dev->name not defined before register_netdev()! */
rc = register_netdev(dev);
if (rc)
@@ -1108,11 +1098,6 @@
netif_carrier_ok(mii->dev));
}
-static void rhine_check_media_task(struct net_device *dev)
-{
- rhine_check_media(dev, 0);
-}
-
static void init_registers(struct net_device *dev)
{
struct rhine_private *rp = netdev_priv(dev);
@@ -1166,8 +1151,8 @@
if (quirks & rqRhineI) {
iowrite8(0x01, ioaddr + MIIRegAddr); // MII_BMSR
- /* Do not call from ISR! */
- msleep(1);
+ /* Can be called from ISR. Evil. */
+ mdelay(1);
/* 0x80 must be set immediately before turning it off */
iowrite8(0x80, ioaddr + MIICmd);
@@ -1257,16 +1242,6 @@
static void rhine_tx_timeout(struct net_device *dev)
{
struct rhine_private *rp = netdev_priv(dev);
-
- /*
- * Move bulk of work outside of interrupt context
- */
- schedule_work(&rp->tx_timeout_task);
-}
-
-static void rhine_tx_timeout_task(struct net_device *dev)
-{
- struct rhine_private *rp = netdev_priv(dev);
void __iomem *ioaddr = rp->base;
printk(KERN_WARNING "%s: Transmit timed out, status %4.4x, PHY status "
@@ -1677,7 +1652,7 @@
spin_lock(&rp->lock);
if (intr_status & IntrLinkChange)
- schedule_work(&rp->check_media_task);
+ rhine_check_media(dev, 0);
if (intr_status & IntrStatsMax) {
rp->stats.rx_crc_errors += ioread16(ioaddr + RxCRCErrs);
rp->stats.rx_missed_errors += ioread16(ioaddr + RxMissed);
@@ -1927,9 +1902,6 @@
spin_unlock_irq(&rp->lock);
free_irq(rp->pdev->irq, dev);
-
- flush_scheduled_work();
-
free_rbufs(dev);
free_tbufs(dev);
free_ring(dev);