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Re: [PATCH v2 3.6] ath9k: fix interrupt storms on queued hardware reset

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Rajkumar Manoharan wrote:
> It is safer not to re-enable interrupts on FATAL errors rather than enabling
> it and then checking it on irq for bailing out. It would be better if you kill
> the interrupts on processing fatal interrupts.

I am not sure I understand.

The original issue was the race between reset-work and the ISR which resulted in
frequent disconnects when a BB-WATCHDOG interrupt occurred or TX hung, which was
fixed by introducing the SC_OP_HW_RESET flag. Later, the work_pending() race was
fixed. Still, this is a race that can happen and I think fixing it by bypassing
the ref-count maintenance and disabling interrupts is okay.

Sujith
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