When building drm/exynos for sh, as part of an allmodconfig build,
the following warning triggered:
exynos7_drm_decon.c: In function ‘decon_remove’:
exynos7_drm_decon.c:769:24: warning: unused variable ‘ctx’
struct decon_context *ctx = dev_get_drvdata(&pdev->dev);
The ctx variable is only used as argument to iounmap().
In sh - allmodconfig CONFIG_MMU is not defined
so it ended up in:
\#define __iounmap(addr) do { } while (0)
\#define iounmap __iounmap
Fix the warning by introducing a static inline
function for iounmap.
This is similar to several other architectures.
Signed-off-by: Sam Ravnborg <s...@ravnborg.org>
Cc: Yoshinori Sato <ys...@users.sourceforge.jp>
Cc: Rich Felker <dal...@libc.org>
Cc: Will Deacon <will.dea...@arm.com>
Cc: Andrew Morton <a...@linux-foundation.org>
Cc: Mark Brown <broo...@kernel.org>
Cc: Inki Dae <inki....@samsung.com>
Cc: Krzysztof Kozlowski <k...@kernel.org>
Cc: linux...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
arch/sh/include/asm/io.h | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/arch/sh/include/asm/io.h b/arch/sh/include/asm/io.h
index c28e37a344ad..ac0561960c52 100644
--- a/arch/sh/include/asm/io.h
+++ b/arch/sh/include/asm/io.h
@@ -369,7 +369,11 @@ static inline int iounmap_fixed(void __iomem *addr) {
return -EINVAL; }
#define ioremap_nocache ioremap
#define ioremap_uc ioremap
-#define iounmap __iounmap
+
+static inline void iounmap(void __iomem *addr)
+{
+ __iounmap(addr);
+}
/*
* Convert a physical pointer to a virtual kernel pointer for /dev/mem
--
2.20.1
