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Commit d3ce8843 authored by Ralf Baechle's avatar Ralf Baechle
Browse files

MIPS: Fix modpost error in modules attepting to use virt_addr_valid(). 



ERROR: "min_low_pfn" [drivers/block/aoe/aoe.ko] undefined!

Fixed by moving the implementation of virt_addr_valid() into the kernel
proper and exporting it which removes the pains of an inline or macro
implementation.

Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent 730b8dfe

arch/mips/include/asm/page.h

+4 −1
Original line number Diff line number Diff line
@@ -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)

arch/mips/mm/ioremap.c

+6 −0
Original line number Diff line number Diff line
@@ -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);