Re: [PATCH v2 0/4] usb: gadget: uvc: parse configfs entries and implement v4l2 enum api calls

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On Sun, Dec 04, 2022 at 09:29:16AM +0100, Greg KH wrote:
> On Sat, Dec 03, 2022 at 11:26:14PM +0200, Laurent Pinchart wrote:
> > Hi Michael,
> > 
> > On Sat, Sep 10, 2022 at 12:13:31AM +0200, Michael Grzeschik wrote:
> > > This series improves the uvc video gadget by parsing the configfs
> > > entries. With the configfs data, the userspace now is able to use simple
> > > v4l2 api calls like enum and try_format to check for valid configurations
> > > initially set by configfs.
> > 
> > I've realized that this whole series got merged, despite my multiple
> > attempts to explain why I think it's not a good idea. The UVC gadget
> > requires userspace support, and there's no point in trying to move all
> > these things to the kernel side. It only bloats the kernel, makes the
> > code more complex, more difficult to maintain, and will make UVC 1.5
> > support more difficult.
> 
> I can easily revert them, but I did not see any objections to them
> originally and so I merged them as is the normal method :)

I don't think a revert is needed. The issue I pointed out regarding the
duplication of static const data can be solved on top. The API additions
from this series are, in my opinion, not a good idea for the reasons I
explained, but they don't hurt so much that we need to go nuclear on
this.

Michael, will you be addressing the static const data issue ?

-- 
Regards,

Laurent Pinchart



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