netdev - Re: [PATCH v3] ethernet: tlan: Convert to use jiffies macro

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Message-ID: <a254a4ef-2220-4a72-80ca-1a9fa046c1c6@intel.com>
Date: Wed, 27 Aug 2025 15:22:22 -0700
From: Jacob Keller <jacob.e.keller@...el.com>
To: <zhang.enpei@....com.cn>, <chessman@....org>
CC: <andrew+netdev@...n.ch>, <davem@...emloft.net>, <edumazet@...gle.com>,
	<kuba@...nel.org>, <pabeni@...hat.com>, <netdev@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3] ethernet: tlan: Convert to use jiffies macro



On 8/27/2025 12:54 AM, zhang.enpei@....com.cn wrote:
> From: Zhang Enpei <zhang.enpei@....com.cn>
> 
> Use time_is_before_eq_jiffies macro instead of using jiffies directly to
> handle wraparound.
> 
> Signed-off-by: Zhang Enpei <zhang.enpei@....com.cn>
> ---

Reviewed-by: Jacob Keller <jacob.e.keller@...el.com>

>  drivers/net/ethernet/ti/tlan.c | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
> 
> diff --git a/drivers/net/ethernet/ti/tlan.c b/drivers/net/ethernet/ti/tlan.c
> index a55b0f951181..7c5e51284942 100644
> --- a/drivers/net/ethernet/ti/tlan.c
> +++ b/drivers/net/ethernet/ti/tlan.c
> @@ -1817,7 +1817,6 @@ static void tlan_timer(struct timer_list *t)
>  {
>  	struct tlan_priv	*priv = timer_container_of(priv, t, timer);
>  	struct net_device	*dev = priv->dev;
> -	u32		elapsed;
>  	unsigned long	flags = 0;
> 
>  	priv->timer.function = NULL;
> @@ -1844,8 +1843,7 @@ static void tlan_timer(struct timer_list *t)
>  	case TLAN_TIMER_ACTIVITY:
>  		spin_lock_irqsave(&priv->lock, flags);
>  		if (priv->timer.function == NULL) {
> -			elapsed = jiffies - priv->timer_set_at;
> -			if (elapsed >= TLAN_TIMER_ACT_DELAY) {
> +			if (time_is_before_eq_jiffies(priv->timer_set_at + TLAN_TIMER_ACT_DELAY)) {
>  				tlan_dio_write8(dev->base_addr,
>  						TLAN_LED_REG, TLAN_LED_LINK);
>  			} else  {



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