diff options
| author | Tobias Klauser <tklauser@distanz.ch> | 2016-11-09 17:17:41 +0800 |
|---|---|---|
| committer | Ley Foon Tan <ley.foon.tan@intel.com> | 2016-12-13 17:13:17 +0800 |
| commit | 863cf8da0f32a4c822cd9f7a2f47cd5204ce1ca0 (patch) | |
| tree | d62c459fa0e839a993ee9ef09f6ae66155767641 /arch/nios2 | |
| parent | 3c98fd266b76e04fd59d294f2fb588cc5cb4c212 (diff) | |
| download | linux-863cf8da0f32a4c822cd9f7a2f47cd5204ce1ca0.tar.gz linux-863cf8da0f32a4c822cd9f7a2f47cd5204ce1ca0.tar.xz | |
nios2: Convert pfn_valid to static inline
When compiling with 'W=1' warnings such as the following occur all over
the place:
./include/linux/pfn.h:21:22: warning: comparison of unsigned expression
>= 0 is always true [-Wtype-limits]
which is due to ARCH_PFN_OFFSET being 0 by default
(if CONFIG_NIOS2_MEM_BASE is not changed in the Kconfig). Fix these
warnings by making pfn_valid a static inline function.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
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))) |