include: mman: use bool instead of int for the return value of arch_validate_prot
For pure bool function's return value, bool is a little better more or less than int. Link: http://lkml.kernel.org/r/1469331815-2026-1-git-send-email-chengang@emindsoft.com.cn Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com> Acked-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -31,13 +31,13 @@ static inline pgprot_t arch_vm_get_page_prot(unsigned long vm_flags)
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}
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#define arch_vm_get_page_prot(vm_flags) arch_vm_get_page_prot(vm_flags)
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static inline int arch_validate_prot(unsigned long prot)
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static inline bool arch_validate_prot(unsigned long prot)
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{
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if (prot & ~(PROT_READ | PROT_WRITE | PROT_EXEC | PROT_SEM | PROT_SAO))
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return 0;
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return false;
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if ((prot & PROT_SAO) && !cpu_has_feature(CPU_FTR_SAO))
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return 0;
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return 1;
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return false;
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return true;
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}
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#define arch_validate_prot(prot) arch_validate_prot(prot)
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@ -49,7 +49,7 @@ static inline void vm_unacct_memory(long pages)
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*
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* Returns true if the prot flags are valid
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*/
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static inline int arch_validate_prot(unsigned long prot)
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static inline bool arch_validate_prot(unsigned long prot)
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{
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return (prot & ~(PROT_READ | PROT_WRITE | PROT_EXEC | PROT_SEM)) == 0;
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}
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