On Tue, Nov 10, 2015 at 08:00:09PM +0200, Eli Cohen wrote:
> When an extended verbs is an extension to a legacy verb, the original
> functionality is preserved. Hence we do not require each hardware driver
> to set the extended capability. This will allow to use the extended verb
> in its simple form with drivers that do not support the extended
> capability.

Can we please get rid of uverbs_cmd_mask and uverbs_ex_cmd_mask ?

The driver should set the function pointers it does not support to
NULL. We don't need the bitmask because we already know the answer.

For performance, I recommend having the core replace the NULL op
pointers from the driver with a stub that returns ENOTSUP, and then
drop all the checking in the fast path.

Jason
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