On Thu, 2017-08-03 at 08:23 +0300, Kalle Valo wrote:
> "Luis R. Rodriguez" <mcg...@kernel.org> writes:
>
> > > +int request_firmware_nowait(struct module *module, bool uevent,
> > > + const char *name, struct device *device, gfp_t gfp,
> > > + void *context,
> > > + void (*cont)(const struct firmware *fw, void
> > > *context))
> > > +{
> > > + unsigned int opt_flags = FW_OPT_FALLBACK |
> > > + (uevent ? FW_OPT_UEVENT : FW_OPT_USERHELPER);
> > > +
> > > + return __request_firmware_nowait(module, opt_flags, name, device, gfp,
> > > + context, cont);
> > > +}
> > > EXPORT_SYMBOL(request_firmware_nowait);
> > >
> > > +int __request_firmware_async(struct module *module, const char *name,
> > > + struct firmware_opts *fw_opts, struct device *dev,
> > > + void *context,
> > > + void (*cont)(const struct firmware *fw, void
> > > *context))
> > > +{
> > > + unsigned int opt_flags = FW_OPT_UEVENT;
> >
> > This exposes a long issue. Think -- why do we want this enabled by default?
> > Its
> > actually because even though the fallback stuff is optional and can be, the
> > uevent
> > internal flag *also* provides caching support as a side consequence only. We
> > don't want to add a new API without first cleaning up that mess.
> >
> > This is a slipery slope and best to clean that up before adding any new API.
> >
> > That and also Greg recently stated he would like to see at least 3 users of
> > a feature before adding it. Although I think that's pretty arbitrary, and
> > considering that request_firmware_into_buf() only has *one* user -- its what
> > he wishes.
>
> ath10k at least needs a way to silence the warning for missing firmware
> and I think iwlwifi also.
Yes, iwlwifi needs to silence the warning. It the feature (only one,
really) that I've been waiting for.
--
Luca.
