linux-kernel - [irqchip: irq/irqchip-next] ARM: PXA: Kill use of irq_create_strict

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <161909959747.29796.448922731474945904.tip-bot2@tip-bot2>
Date:   Thu, 22 Apr 2021 13:53:17 -0000
From:   "irqchip-bot for Marc Zyngier" <tip-bot2@...utronix.de>
To:     linux-kernel@...r.kernel.org
Cc:     Marc Zyngier <maz@...nel.org>, tglx@...utronix.de
Subject: [irqchip: irq/irqchip-next] ARM: PXA: Kill use of
 irq_create_strict_mappings()

The following commit has been merged into the irq/irqchip-next branch of irqchip:

Commit-ID:     f53dda735f4a36b8153b9b57cd141cd6de4982db
Gitweb:        https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms/f53dda735f4a36b8153b9b57cd141cd6de4982db
Author:        Marc Zyngier <maz@...nel.org>
AuthorDate:    Tue, 06 Apr 2021 10:35:50 +01:00
Committer:     Marc Zyngier <maz@...nel.org>
CommitterDate: Thu, 22 Apr 2021 14:45:48 +01:00

ARM: PXA: Kill use of irq_create_strict_mappings()

irq_create_strict_mappings() is a poor way to allow the use of
a linear IRQ domain as a legacy one. Let's be upfront about
it and use a legacy domain when appropriate.

Signed-off-by: Marc Zyngier <maz@...nel.org>
Link: https://lore.kernel.org/r/20210406093557.1073423-3-maz@kernel.org
---
 arch/arm/mach-pxa/pxa_cplds_irqs.c | 24 +++++++++++-------------
 1 file changed, 11 insertions(+), 13 deletions(-)

diff --git a/arch/arm/mach-pxa/pxa_cplds_irqs.c b/arch/arm/mach-pxa/pxa_cplds_irqs.c
index 45c19ca..ec0d9b0 100644
--- a/arch/arm/mach-pxa/pxa_cplds_irqs.c
+++ b/arch/arm/mach-pxa/pxa_cplds_irqs.c
@@ -147,22 +147,20 @@ static int cplds_probe(struct platform_device *pdev)
 	}
 
 	irq_set_irq_wake(fpga->irq, 1);
-	fpga->irqdomain = irq_domain_add_linear(pdev->dev.of_node,
-					       CPLDS_NB_IRQ,
-					       &cplds_irq_domain_ops, fpga);
+	if (base_irq)
+		fpga->irqdomain = irq_domain_add_legacy(pdev->dev.of_node,
+							CPLDS_NB_IRQ,
+							base_irq, 0,
+							&cplds_irq_domain_ops,
+							fpga);
+	else
+		fpga->irqdomain = irq_domain_add_linear(pdev->dev.of_node,
+							CPLDS_NB_IRQ,
+							&cplds_irq_domain_ops,
+							fpga);
 	if (!fpga->irqdomain)
 		return -ENODEV;
 
-	if (base_irq) {
-		ret = irq_create_strict_mappings(fpga->irqdomain, base_irq, 0,
-						 CPLDS_NB_IRQ);
-		if (ret) {
-			dev_err(&pdev->dev, "couldn't create the irq mapping %d..%d\n",
-				base_irq, base_irq + CPLDS_NB_IRQ);
-			return ret;
-		}
-	}
-
 	return 0;
 }