[PATCH V2 0/3] Introduce and use DO_ONCE statement expression macro

[Joe Perches <joe@perches.com>]

The printk_once macro in kernel.h is limited to printk

This generalizes the functionality of printk_once and
allows statements like DO_ONCE(pr_info("foo\n"))
and DO_ONCE(initialize(foo));

Uses atomic test_and_set_bit

Joe Perches (3):
  kernel.h: Add DO_ONCE statement expression macro
  arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c: Use DO_ONCE & spelling fix
  kernel.h: Remove unused printk_once

 arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c |    4 ++--
 include/linux/kernel.h                     |   26 +++++++++++---------------
 2 files changed, 13 insertions(+), 17 deletions(-)