Messages in this thread | | | Subject | Re: [PATCH v3] irqchip/tango: Don't use incorrect irq_mask_ack callback | From | Marc Gonzalez <> | Date | Tue, 25 Jul 2017 15:26:40 +0200 |
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On 25/07/2017 15:16, Måns Rullgård wrote:
> What happened to the patch adding the proper combined function?
It appears you're not CCed on v2.
https://patchwork.kernel.org/patch/9859799/
Doug wrote: > Yes, you understand correctly. The irq_mask_ack method is entirely > optional and I assume that is why this issue went undetected for so > long; however, it is slightly more efficient to combine the functions > (even if the ack is unnecessary) which is why I chose to do so for my > changes to the irqchip-brcmstb-l2 driver where I first discovered this > issue. How much value the improved efficiency has is certainly > debatable, but interrupt handling is one area where people might care > about such a small difference. As the irqchip-tango driver maintainer > you are welcome to decide whether or not the irq_mask_ack method makes > sense to you.
My preference goes to leaving the irq_mask_ack callback undefined, and let the irqchip framework use irq_mask and irq_ack instead.
Regards.
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