[PATCH] drivers/net/*: use time_after() and friends

They deal with wrapping correctly and are nicer to read.  Also make
jiffies-holding variables unsigned long.

Signed-off-by: Marcelo Feitoza Parisi <marcelo@feitoza.com.br>
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/net/3c59x.c b/drivers/net/3c59x.c
index 7488ee7f7caf..3dde1df33487 100644
--- a/drivers/net/3c59x.c
+++ b/drivers/net/3c59x.c
@@ -258,6 +258,7 @@ static int vortex_debug = 1;
 #include <linux/highmem.h>
 #include <linux/eisa.h>
 #include <linux/bitops.h>
+#include <linux/jiffies.h>
 #include <asm/irq.h>                    /* For NR_IRQS only. */
 #include <asm/io.h>
 #include <asm/uaccess.h>
@@ -2717,7 +2718,7 @@ boomerang_rx(struct net_device *dev)
                         skb = dev_alloc_skb(PKT_BUF_SZ);
                         if (skb == NULL) {
                                 static unsigned long last_jif;
-                                if ((jiffies - last_jif) > 10 * HZ) {
+                                if (time_after(jiffies, last_jif + 10 * HZ)) {
                                         printk(KERN_WARNING "%s: memory shortage\n", dev->name);
                                         last_jif = jiffies;
                                 }