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mm: move phys_mem_access_prot_allowed() declaration to pgtable.h

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We get 1 warning when building kernel with W=1:

  drivers/char/mem.c:220:12: warning: no previous prototype for 'phys_mem_access_prot_allowed' [-Wmissing-prototypes]
   int __weak phys_mem_access_prot_allowed(struct file *file,

In fact, its declaration is spreading to several header files in
different architecture, but need to be declare in common header file.

So this patch moves phys_mem_access_prot_allowed() to pgtable.h.

Link: http://lkml.kernel.org/r/1473751597-12139-1-git-send-email-baoyou.xie@linaro.org
Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Baoyou Xie
2016-10-07 17:00:55 -07:00
committed by Linus Torvalds
parent cc30c5d646
commit 08ea8c07fb
3 changed files with 3 additions and 4 deletions
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3
include/asm-generic/pgtable.h
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@@ -800,6 +800,9 @@ static inline int pmd_clear_huge(pmd_t *pmd)
#endif
#endif
struct file;
int phys_mem_access_prot_allowed(struct file *file, unsigned long pfn,
unsigned long size, pgprot_t *vma_prot);
#endif /* !__ASSEMBLY__ */
#ifndef io_remap_pfn_range