2022-02-10 10:55:59

by Kieran Bingham

[permalink] [raw]
Subject: Re: [PATCH] media: wl128x: use time_after_eq() instead of jiffies judgment

Hi,

All of these patches you've just sent say "Use time_after_eq()" in the
subject, but I haven't yet seen a usage of that.

Could you make your patch subject reflective of the true changes in each
patch please?

Batching them in a series as suggested by Joe would be helpful too.

Quoting Qing Wang (2022-02-10 08:32:39)
> From: Wang Qing <[email protected]>
>
> It is better to use time_xxx() directly instead of jiffies judgment
> for understanding.
>
> Signed-off-by: Wang Qing <[email protected]>
> ---
> drivers/media/radio/wl128x/fmdrv_common.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/media/radio/wl128x/fmdrv_common.c b/drivers/media/radio/wl128x/fmdrv_common.c
> index 6142484d..a599d08
> --- a/drivers/media/radio/wl128x/fmdrv_common.c
> +++ b/drivers/media/radio/wl128x/fmdrv_common.c
> @@ -23,6 +23,7 @@
> #include <linux/firmware.h>
> #include <linux/module.h>
> #include <linux/nospec.h>
> +#include <linux/jiffies.h>
>
> #include "fmdrv.h"
> #include "fmdrv_v4l2.h"
> @@ -342,7 +343,7 @@ static void send_tasklet(struct tasklet_struct *t)
> return;
>
> /* Check, is there any timeout happened to last transmitted packet */
> - if ((jiffies - fmdev->last_tx_jiffies) > FM_DRV_TX_TIMEOUT) {
> + if (time_after(jiffies, fmdev->last_tx_jiffies + FM_DRV_TX_TIMEOUT)) {

It looks like there are specific macros for working with jiffies too.

Should this be
time_is_after_jiffies(fmdev->last_tx_jiffies + FM_DRV_TX_TIMEOUT) {

Although that is in fact 2 characters longer ;-S


--
Kieran


> fmerr("TX timeout occurred\n");
> atomic_set(&fmdev->tx_cnt, 1);
> }
> --
> 2.7.4
>