Messages in this thread | | | Date | Mon, 30 Nov 2009 14:51:22 +0000 | From | Alan Cox <> | Subject | Re: Get rid of IRQF_DISABLED - (was [PATCH] genirq: warn about IRQF_SHARED|IRQF_DISABLED) |
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> However, I think we still have a number of corner cases. The SMC91x > driver comes to mind, with its stupidly small FIFOs, where the majority > of implementations have to have the packets loaded via PIO - and this > seems to generally happen from IRQ context.
Everything 8390 based is in the same boat. It relies on being able to use disable_irq_nosync/enable_irq and knows all about the joys of interrupt bus asynchronicity internally. That does however allow it to get sane results by using the irq controller to mask the potentially shared IRQ at source.
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