linux-kernel - [PATCH] sh: mach-x3proto: Constify static irq_domain

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Message-Id: <20220207221314.97788-1-rikard.falkeborn@gmail.com>
Date:   Mon,  7 Feb 2022 23:13:14 +0100
From:   Rikard Falkeborn <rikard.falkeborn@...il.com>
To:     Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        Rich Felker <dalias@...c.org>
Cc:     Marc Zyngier <maz@...nel.org>, linux-sh@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Rikard Falkeborn <rikard.falkeborn@...il.com>
Subject: [PATCH] sh: mach-x3proto: Constify static irq_domain_ops

The only usage of x3proto_gpio_irq_ops is to pass its address to
irq_domain_add_linear() which takes a pointer to const struct
irq_domain_ops. Make it const to allow the compiler to put it in
read-only memory

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@...il.com>
---
 arch/sh/boards/mach-x3proto/gpio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/sh/boards/mach-x3proto/gpio.c b/arch/sh/boards/mach-x3proto/gpio.c
index f82d3a6a844a..dd8ef41e5562 100644
--- a/arch/sh/boards/mach-x3proto/gpio.c
+++ b/arch/sh/boards/mach-x3proto/gpio.c
@@ -91,7 +91,7 @@ static int x3proto_gpio_irq_map(struct irq_domain *domain, unsigned int virq,
 	return 0;
 }
 
-static struct irq_domain_ops x3proto_gpio_irq_ops = {
+static const struct irq_domain_ops x3proto_gpio_irq_ops = {
 	.map	= x3proto_gpio_irq_map,
 	.xlate	= irq_domain_xlate_twocell,
 };
-- 
2.35.1