Jerry Hoemann <jerry.hoemann@xxxxxxx> writes:
> On Tue, Nov 10, 2015 at 01:05:20PM -0500, Jeff Moyer wrote:
>> Jerry Hoemann <jerry.hoemann@xxxxxxx> writes:
>>
>> > Add internal data structure for ndctl_passthru call.
>> >
>> > Signed-off-by: Jerry Hoemann <jerry.hoemann@xxxxxxx>
>> > ---
>> > include/linux/libnvdimm.h | 1 +
>> > 1 file changed, 1 insertion(+)
>> >
>> > diff --git a/include/linux/libnvdimm.h b/include/linux/libnvdimm.h
>> > index 3f021dc..01117e1 100644
>> > --- a/include/linux/libnvdimm.h
>> > +++ b/include/linux/libnvdimm.h
>> > @@ -72,6 +72,7 @@ struct nvdimm_bus_descriptor {
>> > unsigned long dsm_mask;
>> > char *provider_name;
>> > ndctl_fn ndctl;
>> > + ndctl_fn ndctl_passthru;
>>
>> I don't think this is necessary. Vector off inside of __nd_ioctl. That
>> especially makes sense if you do switch to passthrough as a command
>> instead of a type, but it can work either way.
>>
>
> In an earlier version, I added a "type" argument to ndctl_fn and switched
> internally based upon that. I just came to the conclusion that I'd rather
> have two separate acpi_nfit_ctl functions than one trying to do both sets
> of argument marshaling. This is quite different both internally and
> to the caller.
>
> So, I thought it would be less confusing to the next engineer, and that
> this was a good logical separation point.
I'll leave this up to Dan. To me, it doesn't make sense to add a new
ioctl function for every new type of ioctl that get's added (assuming
more types will follow).
Cheers,
Jeff
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