On 7/23/2012 12:31 AM, Magnus Fromreide wrote:

>> Without it PowerTOP will not know what system call number 
>> __NR_perf_event_open has on ARM.
> 
> Why can't it take __NR_perf_event_open from the libc headers?
> That is, why can't the whole ifdef under /* some people have stale
> headers */ go?
> 
> Powertop is rather demanding with regards to the environment anyhow and
> magic constants are never fun.

100% agreed; I briefly talked to Chris on Friday based on this patch and
that is the conclusion we came to as well.