linux-kernel - [tip: irq/drivers] irqchip/gic-v5: Remove the redundant ITS cache invalidation

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Message-ID: <175690164851.1920.5871121421694988962.tip-bot2@tip-bot2>
Date: Wed, 03 Sep 2025 12:14:08 -0000
From: "tip-bot2 for Zenghui Yu" <tip-bot2@...utronix.de>
To: linux-tip-commits@...r.kernel.org
Cc: Zenghui Yu <yuzenghui@...wei.com>, Thomas Gleixner <tglx@...utronix.de>,
 Marc Zyngier <maz@...nel.org>, x86@...nel.org, linux-kernel@...r.kernel.org
Subject: [tip: irq/drivers] irqchip/gic-v5: Remove the redundant ITS cache
 invalidation

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

Commit-ID:     54a1726d2e4c0c7b33f4e5ef35fcc118a4d74ea3
Gitweb:        https://git.kernel.org/tip/54a1726d2e4c0c7b33f4e5ef35fcc118a4d74ea3
Author:        Zenghui Yu <yuzenghui@...wei.com>
AuthorDate:    Wed, 03 Sep 2025 10:33:19 +08:00
Committer:     Thomas Gleixner <tglx@...utronix.de>
CommitterDate: Wed, 03 Sep 2025 14:09:01 +02:00

irqchip/gic-v5: Remove the redundant ITS cache invalidation

An ITS cache invalidation has been performed immediately after programming
the L2 DTE in gicv5_its_device_register(). No need to perform it again
right after a successful gicv5_its_device_register().

Remove it.

Signed-off-by: Zenghui Yu <yuzenghui@...wei.com>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Reviewed-by: Marc Zyngier <maz@...nel.org>
Link: https://lore.kernel.org/all/20250903023319.1820-1-yuzenghui@huawei.com

---
 drivers/irqchip/irq-gic-v5-its.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/irqchip/irq-gic-v5-its.c b/drivers/irqchip/irq-gic-v5-its.c
index 9290ac7..81d813c 100644
--- a/drivers/irqchip/irq-gic-v5-its.c
+++ b/drivers/irqchip/irq-gic-v5-its.c
@@ -768,8 +768,6 @@ static struct gicv5_its_dev *gicv5_its_alloc_device(struct gicv5_its_chip_data *
 		goto out_dev_free;
 	}
 
-	gicv5_its_device_cache_inv(its, its_dev);
-
 	its_dev->its_node = its;
 
 	its_dev->event_map = (unsigned long *)bitmap_zalloc(its_dev->num_events, GFP_KERNEL);