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SubjectRe: use of preempt_count instead of in_atomic() at leds-gpio.c
On Thu, 20 Mar 2008 20:17:23 -0700, Andrew Morton wrote:
> in_atomic() is for core kernel use only. (...)

Then why is it made available to drivers through <linux/hardirq.h>? If
it's such a dangerous macro to call from drivers, it shouldn't be made
available, or at the very least there should be a big fat warning in
<linux/hardirq.h> that drivers aren't supposed to use it. This would
have avoided the 23 uses cases in drivers we have right now.

Jean Delvare

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