diff options
Diffstat (limited to 'arch/nios2')
| -rw-r--r-- | arch/nios2/include/asm/page.h | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/arch/nios2/include/asm/page.h b/arch/nios2/include/asm/page.h index 74477ab66f65..f1fbdc47bdaf 100644 --- a/arch/nios2/include/asm/page.h +++ b/arch/nios2/include/asm/page.h @@ -85,8 +85,15 @@ extern struct page *mem_map; ((void *)(((page) - mem_map) << PAGE_SHIFT) + PAGE_OFFSET) # define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT) -# define pfn_valid(pfn) ((pfn) >= ARCH_PFN_OFFSET && \ - (pfn) < max_mapnr) + +static inline bool pfn_valid(unsigned long pfn) +{ + /* avoid <linux/mm.h> include hell */ + extern unsigned long max_mapnr; + unsigned long pfn_offset = ARCH_PFN_OFFSET; + + return pfn >= pfn_offset && pfn < max_mapnr; +} # define virt_to_page(vaddr) pfn_to_page(PFN_DOWN(virt_to_phys(vaddr))) # define virt_addr_valid(vaddr) pfn_valid(PFN_DOWN(virt_to_phys(vaddr))) |