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

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Date:	Wed, 8 Oct 2014 10:55:58 -0700
From:	David Cohen <david.a.cohen@...ux.intel.com>
To:	Felipe Balbi <balbi@...com>
Cc:	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

On Tue, Oct 07, 2014 at 07:32:56PM -0500, Felipe Balbi wrote:
> Hi again,
> 
> 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
> > 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.
> > 
> > This code is based on a previous Qiuxu's patch.
> > 
> 
> btw, please resend and add below right here:
> 
> Fixes: 2e4c7553cd (usb: gadget: f_fs: add aio support)
> Cc: <stable@...r.kernel.org> # v3.16+

Sure. But v3.16 doesn't have the new 'function' directory under usb/gadget.
Not sure if same patch is useful for v3.16+.
The patch I sent is intended for v3.17.1 and v3.18-rc1.

Br, David

> 
> > Signed-off-by: David Cohen <david.a.cohen@...ux.intel.com>
> > Signed-off-by: Qiuxu Zhuo <qiuxu.zhuo@...el.com>
> 
> -- 
> balbi


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