linux-kernel - [PATCH 5.7 420/477] sh: Convert iounmap() macros to inline functions

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Message-Id: <20200623195427.382451217@linuxfoundation.org>
Date:   Tue, 23 Jun 2020 21:56:57 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>,
        Rich Felker <dalias@...c.org>
Subject: [PATCH 5.7 420/477] sh: Convert iounmap() macros to inline functions

From: Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>

commit 4580ba4ad2e6b8ddaada3db61d179d4dfac12047 upstream.

Macro iounmap() do nothing, but that results in
unused variable warnings all over the place.
This patch convert it to inline to avoid warning

We will get this warning without this patch

	${LINUX}/drivers/thermal/broadcom/ns-thermal.c:78:21: \
	  warning: unused variable 'ns_thermal' [-Wunused-variable]
	struct ns_thermal *ns_thermal = platform_get_drvdata(pdev);
	^~~~~~~~~~

Fixes: 98c90e5ea34e9 ("sh: remove __iounmap")
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>
Signed-off-by: Rich Felker <dalias@...c.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/sh/include/asm/io.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/sh/include/asm/io.h
+++ b/arch/sh/include/asm/io.h
@@ -328,7 +328,7 @@ __ioremap_mode(phys_addr_t offset, unsig
 #else
 #define __ioremap(offset, size, prot)		((void __iomem *)(offset))
 #define __ioremap_mode(offset, size, prot)	((void __iomem *)(offset))
-#define iounmap(addr)				do { } while (0)
+static inline void iounmap(void __iomem *addr) {}
 #endif /* CONFIG_MMU */
 
 static inline void __iomem *ioremap(phys_addr_t offset, unsigned long size)