linux-kernel - [PATCH] genirq: Fix percpu_devid irq affinity documentation

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Message-ID: <20251030143032.2035987-1-maz@kernel.org>
Date: Thu, 30 Oct 2025 14:30:32 +0000
From: Marc Zyngier <maz@...nel.org>
To: linux-kernel@...r.kernel.org
Cc: Thomas Gleixner <tglx@...utronix.de>,
	Stephen Rothwell <sfr@...b.auug.org.au>
Subject: [PATCH] genirq: Fix percpu_devid irq affinity documentation

Stephen points out that some of the percpu_devid irq affinity
documentation is either missing or not matching the data structures.

Address all the issues in one go.

Reported-by: Stephen Rothwell <sfr@...b.auug.org.au>
Fixes: 87b0031f7f73 ("irqdomain: Add firmware info reporting interface")
Fixes: 258e7d28a3dc ("genirq: Add affinity to percpu_devid interrupt requests")
Signed-off-by: Marc Zyngier <maz@...nel.org>
---
 include/linux/interrupt.h | 1 +
 include/linux/irqdomain.h | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index fa62ab556ee32..266f2b39213a0 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -109,6 +109,7 @@ typedef irqreturn_t (*irq_handler_t)(int, void *);
  * @name:	name of the device
  * @dev_id:	cookie to identify the device
  * @percpu_dev_id:	cookie to identify the device
+ * @affinity:	CPUs this irqaction is allowed to run on
  * @next:	pointer to the next irqaction for shared interrupts
  * @irq:	interrupt number
  * @flags:	flags (see IRQF_* above)
diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index 5907baf6099d9..952d3c8dd6b7a 100644
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -48,7 +48,7 @@ struct irq_fwspec {
  * struct irq_fwspec_info - firmware provided IRQ information structure
  *
  * @flags:		Information validity flags
- * @cpumask:		Affinity mask for this interrupt
+ * @affinity:		Affinity mask for this interrupt
  *
  * This structure reports firmware-specific information about an
  * interrupt. The only significant information is the affinity of a
-- 
2.47.3