Messages in this thread | | | Date | Mon, 13 Oct 2014 09:55:56 -0700 | From | David Cohen <> | Subject | Re: [PATCH v2] usb: ffs: fix regression when quirk_ep_out_aligned_size flag is set |
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On Mon, Oct 13, 2014 at 10:32:12AM -0500, Felipe Balbi wrote: > On Wed, Oct 08, 2014 at 02:12:18PM -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. > > > > Fixes: 2e4c7553cd (usb: gadget: f_fs: add aio support) > > Cc: <stable@vger.kernel.org> # v3.16+ > > Signed-off-by: David Cohen <david.a.cohen@linux.intel.com> > > Signed-off-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com> > > Acked-by: Michal Nazarewicz <mina86@mina86.com> > > --- > > > > Hi, > > > > Since this is a feature that worked in past, this is meant for stable > > versions >= 3.16 too. > > > > v1 to v2: just added Fixes, Cc and Acked-by lines on patch description. > > this adds a build warning for use of maybe unitialized data_len. Plese > fix.
It's a false-positive warning. data_len is only initialized if halt != 0 and it's only used if halt != 0 too.
Do you prefer to initialize it to 0 during the declaration to silent the compiler?
BR, David
> > -- > balbi
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