svn commit: r275468 - head/sys/dev/usb/controller
Dag-Erling Smørgrav
des at des.no
Thu Dec 4 18:28:38 UTC 2014
John-Mark Gurney <jmg at funkthat.com> writes:
> Did you see the comment about usig __builtin_ffs{,l,ll} instead? this
> seems to be a better route...
No. It's needlessly compiler-dependent.
> So, how about changing libkern.h to define the various ones to the
> built in, and dropping all the special versions?
This is (or should) be taken care of in cpufunc.h for platforms that
support ffs / fls in hardware.
DES
--
Dag-Erling Smørgrav - des at des.no
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