Arnd Bergmann wrote:
We want to restore the proper
mask of enabled interrupts with the STI. That mask is in the global
irq_flags variable (which probably ought to have a different name that
doesn't invite clashes).
Shouldn't you just use a constant expression here? A global variable
for it sounds rather strange, especially since the local_irq_disable()
calls are sometimes nested, not to mention the problems you'd hit on
SMP?
It's not a constant - there are some {un,}mask_irq functions that may
change it. We don't have SMP, obviously it would have to be per-CPU if
we did.
Bernd
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