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From: Jakub Jelinek <jakub@redhat.com>
To: Chris Wedgwood <cw@f00f.org>
Cc: Mikael Pettersson <mikpe@csd.uu.se>,
	linux-kernel@vger.kernel.org, Linus Torvalds <torvalds@osdl.org>,
	Andrew Morton <akpm@osdl.org>
Subject: Re: [PATCH (updated)] Avoid annoying build warning on 32-bit platforms
Date: Wed, 20 Oct 2004 06:42:39 -0400	[thread overview]
Message-ID: <20041020104239.GT31909@devserv.devel.redhat.com> (raw)
In-Reply-To: <20041020102343.GA6901@taniwha.stupidest.org>

On Wed, Oct 20, 2004 at 03:23:43AM -0700, Chris Wedgwood wrote:
> Avoid annoying gcc warning on 32-bit platforms.
> 
> Signed-off-by: cw@f00f.org
> 
> ===== drivers/char/random.c 1.57 vs edited =====
> --- 1.57/drivers/char/random.c	2004-10-05 14:21:53 -07:00
> +++ edited/drivers/char/random.c	2004-10-20 03:19:17 -07:00
> @@ -818,12 +818,10 @@ static void add_timer_randomness(struct 
>  	 * jiffies.
>  	 */
>  	time = get_cycles();
> -	if (time != 0) {
> -		if (sizeof(time) > 4)
> -			num ^= (u32)(time >> 32);
> -	} else {
> +	if (time)
> +		num ^= (u32)((time >> 32) >> 1);
				      ^^
				  32 + 1 != 32.

> +	else
>  		time = jiffies;
> -	}

	Jakub

  reply	other threads:[~2004-10-20 10:53 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-10-20  9:56 [PATCH] Avoid a build warning on 32-bit platforms Mikael Pettersson
2004-10-20 10:23 ` [PATCH (updated)] Avoid annoying " Chris Wedgwood
2004-10-20 10:42   ` Jakub Jelinek [this message]
2004-10-20 10:53   ` Martin Zwickel
2004-10-20 19:18     ` Chris Wedgwood

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