On Thu, Sep 04, 2014 at 05:40:20PM +0200, Peter Zijlstra wrote: > 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().
Ah I didn't know about that static_cpu_has(). I'm going to try the way you suggest then. Thanks. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
