From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnd Bergmann Subject: [PATCH] arc: fix iounmap prototype Date: Tue, 2 Jan 2018 12:01:24 +0100 Message-ID: <20180102110141.1853608-1-arnd@arndb.de> Return-path: Received: from mout.kundenserver.de ([212.227.126.134]:55971 "EHLO mout.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751444AbeABLCJ (ORCPT ); Tue, 2 Jan 2018 06:02:09 -0500 Sender: linux-arch-owner@vger.kernel.org List-ID: Cc: Andrew Morton , linux-arch@vger.kernel.org, Arnd Bergmann , Vineet Gupta , linux-snps-arc@lists.infradead.org, linux-kernel@vger.kernel.org The missing 'volatile' keyword on the iounmap argument leads to lots of harmless warnings in an allmodconfig build: sound/pci/echoaudio/echoaudio.c:1879:10: warning: passing argument 1 of 'iounmap' discards 'volatile' qualifier f pointer target type [-Wdiscarded-qualifiers] Signed-off-by: Arnd Bergmann --- arch/arc/include/asm/io.h | 4 ++-- arch/arc/mm/ioremap.c | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/arc/include/asm/io.h b/arch/arc/include/asm/io.h index c22b181e8206..2c9b98fabf82 100644 --- a/arch/arc/include/asm/io.h +++ b/arch/arc/include/asm/io.h @@ -30,11 +30,11 @@ static inline void __iomem *ioport_map(unsigned long port, unsigned int nr) return (void __iomem *)port; } -static inline void ioport_unmap(void __iomem *addr) +static inline void ioport_unmap(volatile void __iomem *addr) { } -extern void iounmap(const void __iomem *addr); +extern void iounmap(const volatile void __iomem *addr); #define ioremap_nocache(phy, sz) ioremap(phy, sz) #define ioremap_wc(phy, sz) ioremap(phy, sz) diff --git a/arch/arc/mm/ioremap.c b/arch/arc/mm/ioremap.c index 9881bd740ccc..94d0116063a8 100644 --- a/arch/arc/mm/ioremap.c +++ b/arch/arc/mm/ioremap.c @@ -95,7 +95,7 @@ void __iomem *ioremap_prot(phys_addr_t paddr, unsigned long size, EXPORT_SYMBOL(ioremap_prot); -void iounmap(const void __iomem *addr) +void iounmap(volatile const void __iomem *addr) { /* weird double cast to handle phys_addr_t > 32 bits */ if (arc_uncached_addr_space((phys_addr_t)(u32)addr)) -- 2.9.0