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(-)
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