[PATCH] 2: 2.5.30-pcnet_cs

Russell King (rmk@arm.linux.org.uk)
Sun, 04 Aug 2002 20:14:43 +0100


This patch has been verified to apply cleanly to 2.5.30

This patch fixes a bug in handling the timeout in pcnet_cs.c, where
it uses the following test to determine whether the timeout has
expired:

if (jiffies - dma_start > PCNET_RDC_TIMEOUT) {

Unfortunately, PCNET_RDC_TIMEOUT is defined to be "0x02", so the
length of the timeout is only two jiffy ticks, rather than being
the expected 20ms. This patch fixes this.

Also, the above (and one other place) should be converted to
time_after().

drivers/net/pcmcia/pcnet_cs.c | 6 +++---
1 files changed, 3 insertions, 3 deletions

diff -ur orig/drivers/net/pcmcia/pcnet_cs.c linux/drivers/net/pcmcia/pcnet_cs.c
--- orig/drivers/net/pcmcia/pcnet_cs.c Mon Apr 15 00:05:03 2002
+++ linux/drivers/net/pcmcia/pcnet_cs.c Sun Aug 4 19:48:18 2002
@@ -64,7 +64,7 @@
#define SOCKET_START_PG 0x01
#define SOCKET_STOP_PG 0xff

-#define PCNET_RDC_TIMEOUT 0x02 /* Max wait in jiffies for Tx RDC */
+#define PCNET_RDC_TIMEOUT (2*HZ/100) /* Max wait in jiffies for Tx RDC */

static char *if_names[] = { "auto", "10baseT", "10base2"};

@@ -1183,7 +1183,7 @@
}
info->link_status = link;
}
- if (info->pna_phy && (jiffies - info->mii_reset > 6*HZ)) {
+ if (info->pna_phy && time_after(jiffies, info->mii_reset + 6*HZ)) {
link = mdio_read(mii_addr, info->eth_phy, 1) & 0x0004;
if (((info->phy_id == info->pna_phy) && link) ||
((info->phy_id != info->pna_phy) && !link)) {
@@ -1385,7 +1385,7 @@
#endif

while ((inb_p(nic_base + EN0_ISR) & ENISR_RDC) == 0)
- if (jiffies - dma_start > PCNET_RDC_TIMEOUT) {
+ if (time_after(jiffies, dma_start + PCNET_RDC_TIMEOUT)) {
printk(KERN_NOTICE "%s: timeout waiting for Tx RDC.\n",
dev->name);
pcnet_reset_8390(dev);
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/