linux-kernel - Re: [PATCH v2 1/2] staging: gdm7240: adding LTE USB driver

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Date:	Thu, 25 Jul 2013 00:08:57 +0300
From:	Dan Carpenter <dan.carpenter@...cle.com>
To:	Won Kang <wkang77@...il.com>
Cc:	linux-kernel@...r.kernel.org, devel@...verdev.osuosl.org,
	gregkh@...uxfoundation.org, wonkang@...semi.com
Subject: Re: [PATCH v2 1/2] staging: gdm7240: adding LTE USB driver

On Thu, Jul 25, 2013 at 03:36:17AM +0900, Won Kang wrote:
> +- Explain reason for multiples of 512 bytes in alloc_tx_struct()

Actually I remembered that I had seen this before in gdm_usb_send()
from drivers/staging/gdm72xx/gdm_usb.c.  Apparently there is a
firmware bug.

        /*
         * In some cases, USB Module of WiMax is blocked when data size is
         * the multiple of 512. So, increment length by one in that case.
         */
	if ((len % 512) == 0)
        	len++;

regards,
dan carpenter
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