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microblaze: fix iounmap prototype

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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 from pointer target type [-Wdiscarded-qualifiers]

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
This commit is contained in:
Arnd Bergmann 2018-01-02 12:47:20 +01:00 committed by Michal Simek
parent 71e7673dad
commit 2c957902b1
2 changed files with 2 additions and 2 deletions
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2
arch/microblaze/include/asm/io.h
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@ -36,7 +36,7 @@ extern resource_size_t isa_mem_base;
#ifdef CONFIG_MMU
#define page_to_bus(page) (page_to_phys(page))
extern void iounmap(void __iomem *addr);
extern void iounmap(volatile void __iomem *addr);
extern void __iomem *ioremap(phys_addr_t address, unsigned long size);
#define ioremap_nocache(addr, size) ioremap((addr), (size))

2
arch/microblaze/mm/pgtable.c
View File

@ -127,7 +127,7 @@ void __iomem *ioremap(phys_addr_t addr, unsigned long size)
}
EXPORT_SYMBOL(ioremap);
void iounmap(void __iomem *addr)
void iounmap(volatile void __iomem *addr)
{
if ((__force void *)addr > high_memory &&
(unsigned long) addr < ioremap_bot)