microblaze: fix iounmap prototype

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>

diff --git a/arch/microblaze/include/asm/io.h b/arch/microblaze/include/asm/io.h
index 39b6315db82ee74bc3aa652460b50c6cdde605a7..c7968139486f48be68ce86642b4fb32f52909f80 100644 (file)
--- a/arch/microblaze/include/asm/io.h
+++ b/arch/microblaze/include/asm/io.h
@@ -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))

diff --git a/arch/microblaze/mm/pgtable.c b/arch/microblaze/mm/pgtable.c
index 4c059923991530d0608ce93150ee24f5cf5f9bfc..7f525962cdfaa0951321bbdccfc4809a140cf6cf 100644 (file)
--- a/arch/microblaze/mm/pgtable.c
+++ b/arch/microblaze/mm/pgtable.c
@@ -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)