linux-kernel - Re: [PATCH] usb: ffs: fix regression when quirk_ep_out_aligned

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Date:	Tue, 7 Oct 2014 19:31:44 -0500
From:	Felipe Balbi <balbi@...com>
To:	David Cohen <david.a.cohen@...ux.intel.com>
CC:	<balbi@...com>, <gregkh@...uxfoundation.org>, <mina86@...a86.com>,
	<r.baldyga@...sung.com>, <linux-usb@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, Qiuxu Zhuo <qiuxu.zhuo@...el.com>
Subject: Re: [PATCH] usb: ffs: fix regression when quirk_ep_out_aligned_size
 flag is set

Hi,

On Tue, Oct 07, 2014 at 05:18:06PM -0700, David Cohen wrote:
> The commit '2e4c7553cd usb: gadget: f_fs: add aio support' broke the

did that commit non-aio or is only aio broken ?

> quirk implemented to align buffer size to maxpacketsize on out endpoint.
> As result, functionfs does not work on Intel platforms using dwc3 driver
> (i.e. Bay Trail and Merrifield). This patch fixes the issue.

and Braswell.

> This code is based on a previous Qiuxu's patch.

How have you tested this ? Do you have a test-case to share ? Then I can
add it to my tests which I have been running on my platforms too (they
include USB20CV and USB30CV where applicable - quite a few fixes coming
soon).

cheers

-- 
balbi

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