Re: [PATCH 1/2] mISDN: Use time_before()

Joe Perches
2014-05-21T20:07:51Z

On Wed, 2014-05-21 at 23:27 +0400, Sergei Shtylyov wrote:
> On 05/21/2014 11:10 PM, Manuel Schölling wrote:
> > To be future-proof and for better readability the time comparisons are modified
> > to use time_before() instead of plain, error-prone math.
> > diff --git a/drivers/isdn/mISDN/l1oip_core.c b/drivers/isdn/mISDN/l1oip_core.c
[]
> > @@ -287,7 +287,7 @@ l1oip_socket_send(struct l1oip *hc, u8 localcodec, u8 channel, u32 chanmask,
> > p = frame;
> >
> > /* restart timer */
> > - if ((int)(hc->keep_tl.expires-jiffies) < 5 * HZ) {
> > + if (time_before(hc->keep_tl.expires - 5 * HZ, jiffies)) {
>
> Wouldn't it be clearer this way:
>
> if (time_before(hc->keep_tl.expires, jiffies + 5 * HZ)) {

> > del_timer(&hc->keep_tl);
> > hc->keep_tl.expires = jiffies + L1OIP_KEEPALIVE * HZ;
> > add_timer(&hc->keep_tl);

mod_timer?