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 <a...@arndb.de>
---
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
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