REPOST PATCH: hpet_do_div.patch

[Jon Smirl <jonsmirl@gmail.com>]

This patch does not appear to be in the mm or linus kernel. It has
been approved by the HPET maintainer.

On 6/14/05, Pallipadi, Venkatesh <venkatesh.pallipadi@intel.com> wrote:
> 
> Yes. It has to be plain '/' instead of do_div. Even the
> femto second quantity is guaranteed to fit in 32 bit
> variable here.
> 
> Thanks,
> Venki

--
Jon Smirl
jonsmirl@gmail.com

#Use correct div on 32 bits
#Signed-off-by: Jon Smirl <jonsmirl@gmail.com>
diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
--- a/drivers/char/hpet.c
+++ b/drivers/char/hpet.c
@@ -834,7 +834,7 @@ int hpet_alloc(struct hpet_data *hdp)
 	printk("\n");
 
 	ns = hpetp->hp_period;	/* femptoseconds, 10^-15 */
-	do_div(ns, 1000000);	/* convert to nanoseconds, 10^-9 */
+	ns /= 1000000;		/* convert to nanoseconds, 10^-9 */
 	printk(KERN_INFO "hpet%d: %ldns tick, %d %d-bit timers\n",
 		hpetp->hp_which, ns, hpetp->hp_ntimer,
 		cap & HPET_COUNTER_SIZE_MASK ? 64 : 32);