include/linux/smp.h:on_each_cpu(): switch back to a C function
include/linux/smp.h:on_each_cpu(): switch back to a C function

Revert commit c846ef7deba2 ("include/linux/smp.h:on_each_cpu(): switch
back to a macro").  It turns out that the problematic linux/irqflags.h
include was fixed within ia64 and mn10300.

Cc: Geert Uytterhoeven <0da414d9d963da4039c2a0525b1844228075aa58@linux-m68k.org>
Cc: David Daney <eec15f2dea0e7d114bf41a5bde8a2858b8f3e893@cavium.com>
Signed-off-by: Andrew Morton <5c1e68b099950c134891f0b6e179498a8ebe9cf9@linux-foundation.org>
Signed-off-by: Linus Torvalds <69652caca27c8b940640ad396ab71f93cacec34f@linux-foundation.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs