On 9/4/05, Johannes Stezenbach <[email protected]> wrote:
> From: Marcelo Feitoza Parisi <[email protected]>
>
> Use of the time_after_eq() macro, defined at linux/jiffies.h, which deal
> with wrapping correctly and are nicer to read.
>
> Signed-off-by: Marcelo Feitoza Parisi <[email protected]>
> Signed-off-by: Domen Puncer <[email protected]>
> Signed-off-by: Johannes Stezenbach <[email protected]>
>
> drivers/media/dvb/ttusb-budget/dvb-ttusb-budget.c | 6 ++++--
> 1 file changed, 4 insertions(+), 2 deletions(-)
>
> --- linux-2.6.13-git4.orig/drivers/media/dvb/ttusb-budget/dvb-ttusb-budget.c 2005-09-04 22:28:03.000000000 +0200
> +++ linux-2.6.13-git4/drivers/media/dvb/ttusb-budget/dvb-ttusb-budget.c 2005-09-04 22:31:06.000000000 +0200
> @@ -18,6 +18,7 @@
> #include <linux/delay.h>
> #include <linux/time.h>
> #include <linux/errno.h>
> +#include <linux/jiffies.h>
> #include <asm/semaphore.h>
>
> #include "dvb_frontend.h"
> @@ -570,7 +571,8 @@ static void ttusb_handle_sec_data(struct
> const u8 * data, int len);
> #endif
>
> -static int numpkt = 0, lastj, numts, numstuff, numsec, numinvalid;
> +static int numpkt = 0, numts, numstuff, numsec, numinvalid;
> +static unsigned long lastj;
>
> static void ttusb_process_muxpack(struct ttusb *ttusb, const u8 * muxpack,
> int len)
> @@ -779,7 +781,7 @@ static void ttusb_iso_irq(struct urb *ur
> u8 *data;
> int len;
> numpkt++;
> - if ((jiffies - lastj) >= HZ) {
> + if (time_after_eq(jiffies, lastj + HZ)) {
I think you actually want:
static void ttusb_iso_irq(....)
{
unsigned long lastj;
...
lastj = jiffies + HZ;
if (time_after_eq(jiffies, lastj)) {
...
}
The current code doesn't assign jiffies to lastj at any point that I see.
Thanks,
Nish
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