RE: [PATCH 3/3] USB: cdc.h: ncm: add missed constants and structures

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> -----Original Message-----
> From: Greg KH [mailto:greg@xxxxxxxxx]
> Sent: Wednesday, September 22, 2010 7:39 PM
> To: Alexey ORISHKO
> Cc: Yauheni.Kaliuta@xxxxxxxxx; linux-usb@xxxxxxxxxxxxxxx; Hans Petter
> SELASKY
> Subject: Re: [PATCH 3/3] USB: cdc.h: ncm: add missed constants and
> structures
> 
> On Wed, Sep 22, 2010 at 05:12:09PM +0200, Alexey ORISHKO wrote:
> > On Mon, Sep 20, 2010 at 4:40 PM,  <yauheni.kaliuta@xxxxxxxxx> wrote:
> > > From: Yauheni Kaliuta <yauheni.kaliuta@xxxxxxxxx>
> > >
> > > Make a dedicated structure for datagram pointer entry. There is no
> > > explicit declaration in the spec, but it's used by the host
> > > implementation and makes the structure more clear.
> > >
> > > Add some missed constants from the spec
> > >
> > > Signed-off-by: Yauheni Kaliuta <yauheni.kaliuta@xxxxxxxxx>
> > > ---
> > >  include/linux/usb/cdc.h |   57
> >
> > ...
> >
> > > +/* 32-bit NCM Datagram Pointer Entry */ struct usb_cdc_ncm_dpe32 {
> > > +       __le32  wDatagramIndex;
> > > +       __le32  wDatagramLength;
> > > +} __attribute__((__packed__));
> > > +
> >
> > We did review of the posted patch and it looks good.
> >
> > Some minor fix is needed: structure field names should reflect 32 bit
> size:
> > dwDatagramIndex
> > dwDatagramLength
> 
> Is that what the USB spec says?

Yes, see ch. 3.3.2; both index and length sizes are 4 bytes in 32-bit NCM Datagram Pointer Entry.

> 
> > Hope, we could get this patch in the mainstream soon :-)
> 
> It's in my tree for the merge for .37.
> 
> thanks,
> 
> greg k-h

Best regards,
Alexey
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