f036be96dd
This pattern shows up frequently in the kernel:
static int once = 1;
...
if (once) {
once = 0;
printk(KERN_ERR "message\n");
}
...
So add a printk_once() helper macro that reduces this to a single line
of:
printk_once(KERN_ERR "message\n");
It works analogously to WARN_ONCE() & friends. (We use a macro not
an inline because vararg expansion in inlines looks awkward and the
macro is simple enough.)
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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| asm-frv | ||
| asm-generic | ||
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