linux-kernel - [PATCH] ARM: imx: mark imx53_suspend

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Message-Id: <20250225201157.4190864-1-arnd@kernel.org>
Date: Tue, 25 Feb 2025 21:11:52 +0100
From: Arnd Bergmann <arnd@...nel.org>
To: Russell King <linux@...linux.org.uk>,
	Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>
Cc: soc@...ux.dev,
	Arnd Bergmann <arnd@...db.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>,
	linux-arm-kernel@...ts.infradead.org,
	imx@...ts.linux.dev,
	linux-kernel@...r.kernel.org
Subject: [PATCH] ARM: imx: mark imx53_suspend_sz as unused

From: Arnd Bergmann <arnd@...db.de>

Unused 'static const' variables cause a warning when building with
W=1, and imx53_suspend_sz has a definition for this as an
alternative when CONFIG_SUSPEND is disabled:

    In file included from arch/arm/mach-imx/cpu.c:9:
    arch/arm/mach-imx/common.h:101:18: error: 'imx53_suspend_sz' defined but not used [-Werror=unused-const-variable=]

It's still referenced though, so mark it as __maybe_unused, so
the one user can address the dummy copy and other files that include
the header don't produce a warning.

Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 arch/arm/mach-imx/common.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-imx/common.h b/arch/arm/mach-imx/common.h
index 13f3068e9845..45c1a2a7b35f 100644
--- a/arch/arm/mach-imx/common.h
+++ b/arch/arm/mach-imx/common.h
@@ -98,7 +98,7 @@ extern const u32 imx53_suspend_sz;
 void imx6_suspend(void __iomem *ocram_vbase);
 #else
 static inline void imx53_suspend(void __iomem *ocram_vbase) {}
-static const u32 imx53_suspend_sz;
+static __maybe_unused const u32 imx53_suspend_sz;
 static inline void imx6_suspend(void __iomem *ocram_vbase) {}
 #endif
 
-- 
2.39.5