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Message-Id: <20230116135044.14998-14-johan+linaro@kernel.org>
Date:   Mon, 16 Jan 2023 14:50:38 +0100
From:   Johan Hovold <johan+linaro@...nel.org>
To:     Marc Zyngier <maz@...nel.org>, Thomas Gleixner <tglx@...utronix.de>
Cc:     x86@...nel.org, platform-driver-x86@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-mips@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Johan Hovold <johan+linaro@...nel.org>,
        Philippe Mathieu-Daudé <philmd@...aro.org>,
        Hsin-Yi Wang <hsinyi@...omium.org>,
        Mark-PK Tsai <mark-pk.tsai@...iatek.com>
Subject: [PATCH v4 13/19] irqchip/alpine-msi: Use irq_domain_add_hierarchy()

Use the irq_domain_add_hierarchy() helper to create the hierarchical
domain, which both serves as documentation and avoids poking at
irqdomain internals.

Reviewed-by: Philippe Mathieu-Daudé <philmd@...aro.org>
Tested-by: Hsin-Yi Wang <hsinyi@...omium.org>
Tested-by: Mark-PK Tsai <mark-pk.tsai@...iatek.com>
Signed-off-by: Johan Hovold <johan+linaro@...nel.org>
---
 drivers/irqchip/irq-alpine-msi.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/irqchip/irq-alpine-msi.c b/drivers/irqchip/irq-alpine-msi.c
index 5ddb8e578ac6..604459372fdd 100644
--- a/drivers/irqchip/irq-alpine-msi.c
+++ b/drivers/irqchip/irq-alpine-msi.c
@@ -204,16 +204,14 @@ static int alpine_msix_init_domains(struct alpine_msix_data *priv,
 		return -ENXIO;
 	}
 
-	middle_domain = irq_domain_add_tree(NULL,
-					    &alpine_msix_middle_domain_ops,
-					    priv);
+	middle_domain = irq_domain_add_hierarchy(gic_domain, 0, 0, NULL,
+						 &alpine_msix_middle_domain_ops,
+						 priv);
 	if (!middle_domain) {
 		pr_err("Failed to create the MSIX middle domain\n");
 		return -ENOMEM;
 	}
 
-	middle_domain->parent = gic_domain;
-
 	msi_domain = pci_msi_create_irq_domain(of_node_to_fwnode(node),
 					       &alpine_msix_domain_info,
 					       middle_domain);
-- 
2.38.2

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