From: Marc Zyngier <maz@kernel.org>
Date: Mon, 20 Oct 2025 12:29:37 +0000 (+0100)
Subject: coresight: trbe: Request specific affinities for per CPU interrupts
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=4cdf4813f528cdadfc3778fed6b7783cfe1eb75a;p=thirdparty%2Fkernel%2Flinux.git

coresight: trbe: Request specific affinities for per CPU interrupts

Let the TRBE driver request interrupts with an affinity mask matching the
TRBE implementation affinity.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Will Deacon <will@kernel.org>
Acked-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://patch.msgid.link/20251020122944.3074811-21-maz@kernel.org
---

diff --git a/drivers/hwtracing/coresight/coresight-trbe.c b/drivers/hwtracing/coresight/coresight-trbe.c
index 8f17160fec442..9f64f463339d6 100644
--- a/drivers/hwtracing/coresight/coresight-trbe.c
+++ b/drivers/hwtracing/coresight/coresight-trbe.c
@@ -1494,7 +1494,8 @@ static int arm_trbe_probe_irq(struct platform_device *pdev,
 	if (!drvdata->handle)
 		return -ENOMEM;
 
-	ret = request_percpu_irq(drvdata->irq, arm_trbe_irq_handler, DRVNAME, drvdata->handle);
+	ret = request_percpu_irq_affinity(drvdata->irq, arm_trbe_irq_handler, DRVNAME,
+					  affinity, drvdata->handle);
 	if (ret) {
 		free_percpu(drvdata->handle);
 		return ret;