From: Dan Williams <dcbw@redhat.com>
To: Roel Kluin <roel.kluin@gmail.com>
Cc: breed@users.sourceforge.net, linux-wireless@vger.kernel.org,
lkml <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] wireless, airo: waitbusy() won't delay
Date: Tue, 13 May 2008 17:43:13 -0400 [thread overview]
Message-ID: <1210714993.987.3.camel@localhost.localdomain> (raw)
In-Reply-To: <4829F62B.8030003@gmail.com>
On Tue, 2008-05-13 at 22:12 +0200, Roel Kluin wrote:
> There will be no delay even when COMMAND_BUSY (defined 0x8000) is set:
> 0x8000 & (delay < 10000) will evaluate to 0 - when delay is 0.
>
> Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Good catch.
Acked-by: Dan Williams <dcbw@redhat.com>
> ---
> diff --git a/drivers/net/wireless/airo.c b/drivers/net/wireless/airo.c
> index 45f47c1..efb7444 100644
> --- a/drivers/net/wireless/airo.c
> +++ b/drivers/net/wireless/airo.c
> @@ -2904,7 +2904,7 @@ EXPORT_SYMBOL(init_airo_card);
>
> static int waitbusy (struct airo_info *ai) {
> int delay = 0;
> - while ((IN4500 (ai, COMMAND) & COMMAND_BUSY) & (delay < 10000)) {
> + while ((IN4500 (ai, COMMAND) & COMMAND_BUSY) && (delay < 10000)) {
> udelay (10);
> if ((++delay % 20) == 0)
> OUT4500(ai, EVACK, EV_CLEARCOMMANDBUSY);
>
>
>
> --
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prev parent reply other threads:[~2008-05-13 21:47 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-13 20:12 [PATCH] wireless, airo: waitbusy() won't delay Roel Kluin
2008-05-13 21:43 ` Dan Williams [this message]
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