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Subject[RFC] add a WARN in setup_irq function for the IRQF_DISABLED flag

Hi,

we are still seeing drivers with the irq flag IRQF_DISABLED present and
*new* drivers submitted with this flag set.

I am wondering if we can add a WARN in the setup_irq function about this
flag. May be it is a bit rough but people will pay attention.

Thanks

-- Daniel

Index: clockevents/kernel/irq/manage.c
===================================================================
--- clockevents.orig/kernel/irq/manage.c 2013-06-05
23:57:22.723446115 +0200
+++ clockevents/kernel/irq/manage.c 2013-06-08 00:12:19.985035465 +0200
@@ -1212,6 +1212,9 @@ int setup_irq(unsigned int irq, struct i

if (WARN_ON(irq_settings_is_per_cpu_devid(desc)))
return -EINVAL;
+
+ WARN(act->flags & IRQF_DISABLED, "IRQF_DISABLED flag is disabled");
+
chip_bus_lock(desc);
retval = __setup_irq(irq, desc, act);
chip_bus_sync_unlock(desc);
--
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