On Tue, 28 Jun 2011, Greg KH wrote:
> On Tue, Jun 28, 2011 at 04:33:51PM +0300, Felipe Balbi wrote:
> > From: Tatyana Brokhman <tlinder@xxxxxxxxxxxxxx>
> >
> > This field is used by the Gadget drivers to specify
> > the maximum speed they support, meaning: the maximum
> > speed they can provide descriptors for.
> >
> > The driver speed will be set in consideration of this
> > value.
> > diff --git a/drivers/usb/gadget/audio.c b/drivers/usb/gadget/audio.c
> > index 93b999e..0d7f0ae 100644
> > --- a/drivers/usb/gadget/audio.c
> > +++ b/drivers/usb/gadget/audio.c
> > @@ -165,6 +165,11 @@ static struct usb_composite_driver audio_driver = {
> > .name = "g_audio",
> > .dev = &device_desc,
> > .strings = audio_strings,
> > +#ifdef CONFIG_USB_GADGET_DUALSPEED
> > + .max_speed = USB_SPEED_HIGH,
> > +#else
> > + .max_speed = USB_SPEED_FULL,
> > +#endif /* CONFIG_USB_GADGET_DUALSPEED */
>
> Really?
>
> Come on, this is a mess, we don't want #ifdefs in .c files for a reason,
> and this is an example of that.
This was discussed in a recent email exchange. Those #ifdefs are
completely unnecessary: max_speed is supposed to be the maximum speed
supported by the driver, regardless of what the hardware allows.
In this example, the code should simply say:
.max_speed = USB_SPEED_HIGH,
The other drivers should be handled similarly.
Alan Stern
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