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From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
To: "Manuel Schölling" <manuel.schoelling@gmx.de>, isdn@linux-pingi.de
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/2] mISDN: Use time_before()
Date: Wed, 21 May 2014 23:27:37 +0400	[thread overview]
Message-ID: <537CFE29.7050100@cogentembedded.com> (raw)
In-Reply-To: <1400699406-31294-1-git-send-email-manuel.schoelling@gmx.de>

Hello.

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.

> Signed-off-by: Manuel Schölling <manuel.schoelling@gmx.de>
> ---
>   drivers/isdn/mISDN/l1oip_core.c |    5 +++--
>   1 file changed, 3 insertions(+), 2 deletions(-)

> diff --git a/drivers/isdn/mISDN/l1oip_core.c b/drivers/isdn/mISDN/l1oip_core.c
> index 2c0d2c2..1c2bc36 100644
> --- 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);
> @@ -621,7 +621,8 @@ multiframe:
>   		goto multiframe;
>
>   	/* restart timer */
> -	if ((int)(hc->timeout_tl.expires-jiffies) < 5 * HZ || !hc->timeout_on) {
> +	if (time_before(hc->timeout_tl.expires - 5 * HZ, jiffies)
> +	    || !hc->timeout_on) {

    Please leave || on the previous line.

WBR, Sergei

  parent reply	other threads:[~2014-05-21 19:27 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-05-21 19:10 [PATCH 1/2] mISDN: Use time_before() Manuel Schölling
2014-05-21 19:10 ` [PATCH 2/2] mISDN: use mod_timer() Manuel Schölling
2014-05-21 19:27 ` Sergei Shtylyov [this message]
2014-05-21 20:07   ` [PATCH 1/2] mISDN: Use time_before() Joe Perches
2014-05-21 20:43     ` Sergei Shtylyov
2014-05-21 20:08   ` [PATCH v2 " Manuel Schölling
2014-05-21 20:08     ` [PATCH v2 2/2] mISDN: Use mod_timer() Manuel Schölling
2014-05-22 19:50       ` David Miller
2014-05-22 19:50     ` [PATCH v2 1/2] mISDN: Use time_before() David Miller

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