lkml.org 
[lkml]   [2018]   [Jan]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] arc: fix iounmap prototype
Date
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 <arnd@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
\
 
 \ /
  Last update: 2018-01-02 12:02    [W:0.048 / U:5.248 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site