On 26 March 2014 22:58, Thomas Gleixner tglx@linutronix.de wrote:
Instead of removing it we should actually use ffs and avoid the whole looping. That was the intention in the first place, but I never wrote the patch...
I thought about that and then using ffs for a field of which only 4 bits are useful didn't looked too convincing to me :)
But, probably it will make things slightly better in case this routine is heavily used.