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authorSatyam Sharma <satyam@infradead.org>2007-09-18 09:43:40 +1000
committerPaul Mackerras <paulus@samba.org>2007-09-22 14:49:22 +1000
commit8fd7675c092f79f240246c76728477ec4e7f7f09 (patch)
tree848a6f4d312711a84b882e74c093e30158a86c7b /drivers/video/platinumfb.c
parent17b5ee04c09a158129eb538933eae7be956190e9 (diff)
[POWERPC] Avoid pointless WARN_ON(irqs_disabled()) from panic codepath
> ------------[ cut here ]------------ > Badness at arch/powerpc/kernel/smp.c:202 comes when smp_call_function_map() has been called with irqs disabled, which is illegal. However, there is a special case, the panic() codepath, when we do not want to warn about this -- warning at that time is pointless anyway, and only serves to scroll away the *real* cause of the panic and distracts from the real bug. * So let's extract the WARN_ON() from smp_call_function_map() into all its callers -- smp_call_function() and smp_call_function_single() * Also, introduce another caller of smp_call_function_map(), namely __smp_call_function() (and make smp_call_function() a wrapper over this) which does *not* warn about disabled irqs * Use this __smp_call_function() from the panic codepath's smp_send_stop() We also end having to move code of smp_send_stop() below the definition of __smp_call_function(). Signed-off-by: Satyam Sharma <satyam@infradead.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
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