linux-kernel - Re: [PATCH] synclink_gt dropped transmit data bugfix

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Message-Id: <20091208135510.ffd75637.akpm@linux-foundation.org>
Date:	Tue, 8 Dec 2009 13:55:10 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Paul Fulghum <paulkf@...rogate.com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] synclink_gt dropped transmit data bugfix

On Tue, 08 Dec 2009 16:06:50 -0600
Paul Fulghum <paulkf@...rogate.com> wrote:

> +	/* check required buffer space */
> +	bufs_needed = (size/DMABUFSIZE);
> +	if (size % DMABUFSIZE)
> +		++bufs_needed;

	bufs_needed = DIV_ROUND_UP(size, DMABUFSIZE);

?


That unsent_tbufs() call looks like it might be expensive.
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