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Sun, 06 Dec 2020 11:03:06 -0800 (PST) From: Sam Ravnborg To: linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, Lee Jones Subject: [PATCH v3 05/13] sh: Fix set but not used warnings with !CONFIG_MMU Date: Sun, 6 Dec 2020 20:02:39 +0100 Message-Id: <20201206190247.1861316-6-sam@ravnborg.org> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20201206190247.1861316-1-sam@ravnborg.org> References: <20201206190247.1861316-1-sam@ravnborg.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201206_140308_043425_048F4F31 X-CRM114-Status: GOOD ( 18.21 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Rich Felker , Kuninori Morimoto , Peter Zijlstra , Daniel Vetter , Gustavo A R Silva , Andrzej Hajda , Peter Jones , Sam Ravnborg , Geert Uytterhoeven , Michael Ellerman , Thomas Zimmermann , Arnd Bergmann , Bartlomiej Zolnierkiewicz , Thomas Winischhofer , linux-arm-kernel@lists.infradead.org, Qilong Zhang , Randy Dunlap , Douglas Anderson , Tony Prisk , Thierry Reding , Alexander Klimov , Colin Ian King , Andrew Morton , Mike Rapoport Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Building fbdev drivers for sh with W=1 produces the following warning: tmiofb.c: In function ‘tmiofb_remove’: tmiofb.c:805:21: warning: variable ‘par’ set but not used This is with allmodconfig and ARCH=sh This boiled down to iounmap() defined as empty for !CONFIG_MMU. Fix this by by adding "(void)addr;" to tell the compiler the argument to iounmap() should be considered used. Signed-off-by: Sam Ravnborg Cc: Thomas Zimmermann Cc: Lee Jones Cc: Rich Felker Cc: Arnd Bergmann Cc: Geert Uytterhoeven Cc: Mike Rapoport Cc: Kuninori Morimoto Cc: Peter Zijlstra Cc: Sam Ravnborg Cc: Andrew Morton Acked-by: Thomas Zimmermann --- arch/sh/include/asm/io.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/sh/include/asm/io.h b/arch/sh/include/asm/io.h index 6d5c6463bc07..5ad56c6c1e1e 100644 --- a/arch/sh/include/asm/io.h +++ b/arch/sh/include/asm/io.h @@ -271,7 +271,7 @@ static inline void __iomem *ioremap_prot(phys_addr_t offset, unsigned long size, #endif /* CONFIG_HAVE_IOREMAP_PROT */ #else /* CONFIG_MMU */ -#define iounmap(addr) do { } while (0) +#define iounmap(addr) do { (void)addr; } while (0) #define ioremap(offset, size) ((void __iomem *)(unsigned long)(offset)) #endif /* CONFIG_MMU */