linux-kernel - [tip: irq/core] irqchip/gic-v3: Always trust the managed affinity provided by the core code

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Message-ID: <164961797902.4207.18196570030635135623.tip-bot2@tip-bot2>
Date:   Sun, 10 Apr 2022 19:12:59 -0000
From:   "tip-bot2 for Marc Zyngier" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Marc Zyngier <maz@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>, x86@...nel.org,
        linux-kernel@...r.kernel.org
Subject: [tip: irq/core] irqchip/gic-v3: Always trust the managed affinity
 provided by the core code

The following commit has been merged into the irq/core branch of tip:

Commit-ID:     3f893a5962d31c0164efdbf6174ed0784f1d7603
Gitweb:        https://git.kernel.org/tip/3f893a5962d31c0164efdbf6174ed0784f1d7603
Author:        Marc Zyngier <maz@...nel.org>
AuthorDate:    Tue, 05 Apr 2022 19:50:40 +01:00
Committer:     Thomas Gleixner <tglx@...utronix.de>
CommitterDate: Sun, 10 Apr 2022 21:06:30 +02:00

irqchip/gic-v3: Always trust the managed affinity provided by the core code

Now that the core code has been fixed to always give us an affinity
that only includes online CPUs, directly use this affinity when
computing a target CPU.

Signed-off-by: Marc Zyngier <maz@...nel.org>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Link: https://lore.kernel.org/r/20220405185040.206297-4-maz@kernel.org

---
 drivers/irqchip/irq-gic-v3-its.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index cd77297..2656efd 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -1624,7 +1624,7 @@ static int its_select_cpu(struct irq_data *d,
 
 		cpu = cpumask_pick_least_loaded(d, tmpmask);
 	} else {
-		cpumask_and(tmpmask, irq_data_get_affinity_mask(d), cpu_online_mask);
+		cpumask_copy(tmpmask, aff_mask);
 
 		/* If we cannot cross sockets, limit the search to that node */
 		if ((its_dev->its->flags & ITS_FLAGS_WORKAROUND_CAVIUM_23144) &&