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SubjectRe: [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:
> > ----- On Jan 27, 2016, at 12:22 PM, Thomas Gleixner tglx@linutronix.de 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);

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