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author | Sam Ravnborg <sam@ravnborg.org> | 2019-07-11 20:52:52 -0700 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-07-31 07:27:08 +0200 |
commit | 7bd5902a1e18d72bed22431540c17f601fae62b9 (patch) | |
tree | 5876b782a32fe572265c060737d6681b94db0cb1 /arch/sh | |
parent | af50d6a1c24514d466951351bdf9aafe928ad716 (diff) | |
download | linux-stable-7bd5902a1e18d72bed22431540c17f601fae62b9.tar.gz linux-stable-7bd5902a1e18d72bed22431540c17f601fae62b9.tar.bz2 linux-stable-7bd5902a1e18d72bed22431540c17f601fae62b9.zip |
sh: prevent warnings when using iounmap
[ Upstream commit 733f0025f0fb43e382b84db0930ae502099b7e62 ]
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.
Link: http://lkml.kernel.org/r/20190622114208.24427-1-sam@ravnborg.org
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Inki Dae <inki.dae@samsung.com>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch/sh')
-rw-r--r-- | arch/sh/include/asm/io.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/sh/include/asm/io.h b/arch/sh/include/asm/io.h index 98cb8c802b1a..0ae60d680000 100644 --- a/arch/sh/include/asm/io.h +++ b/arch/sh/include/asm/io.h @@ -371,7 +371,11 @@ 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 |