diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/mips/include/asm/page.h | 5 | ||||
| -rw-r--r-- | arch/mips/mm/ioremap.c | 6 |
2 files changed, 10 insertions, 1 deletions
diff --git a/arch/mips/include/asm/page.h b/arch/mips/include/asm/page.h index bf84e48ad669..dbaec94046da 100644 --- a/arch/mips/include/asm/page.h +++ b/arch/mips/include/asm/page.h @@ -198,7 +198,10 @@ typedef struct { unsigned long pgprot; } pgprot_t; #endif #define virt_to_page(kaddr) pfn_to_page(PFN_DOWN(virt_to_phys(kaddr))) -#define virt_addr_valid(kaddr) pfn_valid(PFN_DOWN(virt_to_phys(kaddr))) + +extern int __virt_addr_valid(const volatile void *kaddr); +#define virt_addr_valid(kaddr) \ + __virt_addr_valid((const volatile void *) (kaddr)) #define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \ VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) diff --git a/arch/mips/mm/ioremap.c b/arch/mips/mm/ioremap.c index cacfd31e8ec9..7657fd21cd3f 100644 --- a/arch/mips/mm/ioremap.c +++ b/arch/mips/mm/ioremap.c @@ -190,3 +190,9 @@ void __iounmap(const volatile void __iomem *addr) EXPORT_SYMBOL(__ioremap); EXPORT_SYMBOL(__iounmap); + +int __virt_addr_valid(const volatile void *kaddr) +{ + return pfn_valid(PFN_DOWN(virt_to_phys(kaddr))); +} +EXPORT_SYMBOL_GPL(__virt_addr_valid); |