opnsense-src/sys/compat/linuxkpi
Doug Moore b0056b31e9 libkern: add ilog2 macro
The kernel source contains several definitions of an ilog2 function;
some are slower than necessary, and one of them is incorrect.
Elimininate them all and define an ilog2 macro in libkern to replace
them, in a way that is fast, correct for all argument types, and, in a
GENERIC kernel, includes a check for an invalid zero parameter.

Folks at Microsoft have verified that having a correct ilog2
definition for their MANA driver doesn't break it.

Reviewed by:	alc, markj, mhorne (older version), jhibbits (older version)
Differential Revision:	https://reviews.freebsd.org/D45170
Differential Revision:	https://reviews.freebsd.org/D45235
2024-06-03 11:37:55 -05:00
..
common libkern: add ilog2 macro 2024-06-03 11:37:55 -05:00
dummy/include LinuxKPI: Move [SU](8|16|32|64)_(MAX|MIN) defines to linux/limits.h 2024-04-08 09:47:42 +03:00