Re: [PATCH v2 2/2] PCI/MSI: Implement irq_mask_noflush() for MSI-x

Re: [PATCH v2 2/2] PCI/MSI: Implement irq_mask_noflush() for MSI-x

[sashiko-bot]

> From: Keith Busch <kbusch@kernel.org>
> 
> Skip the read-back that flushes the MSI-x mask write. Parent domains
> that mask on behalf of PCI/MSI keep using their own irq_mask().
> 
> Suggested-by: Thomas Gleixner <tglx@kernel.org>
> Signed-off-by: Keith Busch <kbusch@kernel.org>

Sashiko has reviewed this patch and found no issues.

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Sashiko AI review · https://sashiko.dev/#/patchset/20261105191556.4042191-1-kbusch@meta.com?part=2

Re: [PATCH v2 1/2] genirq: Add disable_irq_noflush()

[sashiko-bot]

> From: Keith Busch <kbusch@kernel.org>
> 
> Drivers that switch between interrupt and polled completions don't need
> the mask write flushed to the device; the disabled state already
> keeps their handler from running and a late interrupt is replayed on
> enable. Add an optional irq_chip::irq_mask_noflush() callback, falling
> back to irq_mask(), and disable_irq_noflush() to mask through it right
> away rather than lazily.
> 
> Suggested-by: Thomas Gleixner <tglx@kernel.org>
> Signed-off-by: Keith Busch <kbusch@kernel.org>

Sashiko has reviewed this patch and found no issues.

-- 
Sashiko AI review · https://sashiko.dev/#/patchset/20261105191556.4042191-1-kbusch@meta.com?part=1