Re: [RFC PATCH v2 1/3] getcpu_cache system call: cache CPU number of running thread

On Wed, 27 Jan 2016, Thomas Gleixner wrote:

On Wed, 27 Jan 2016, Mathieu Desnoyers wrote:

quoted

----- On Jan 27, 2016, at 12:22 PM, Thomas Gleixner tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org wrote:
Sounds fair. What is the recommended typing for "ptr" then ?
uint32_t ** or uint32_t * ?

It would be expected to pass a "uint32_t *" for the set
operation, but the "get" operation requires a "uint32_t **".

Well, you can't change the types depending on the opcode, so you need to stick
with **.

Alternatively you make it:

 (opcode, *newptr, **oldptr, flags);