Re: [RFC PATCH 3/9] irq_work: Force raised irq work to run on irq work interrupt

Peter Zijlstra
2014-09-04T15:40:24Z

On Thu, Sep 04, 2014 at 03:33:40PM +0200, Frederic Weisbecker wrote:
> > Why not something like the below; then it becomes a compile time matter.
>
> Problem is that some archs only have that information at runtime.
> See x86 for example which tests cpu_has_apic.

So the other archs can still benefit, no? Also, on x86 cpu features can
be used with asm_goto/jump_labels, your approach wrecks that too by
copying it into some static variable, see static_cpu_has().