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ARM: pgtable: introduce pteval_t to represent a pte value

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This makes everywhere dealing with pte values use the same type.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King
2010-11-16 00:22:09 +00:00
parent 97092e0c56
commit f6e3354d02
5 changed files with 28 additions and 25 deletions
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6
arch/arm/include/asm/page.h
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@@ -151,13 +151,15 @@ extern void __cpu_copy_user_highpage(struct page *to, struct page *from,
#define clear_page(page) memset((void *)(page), 0, PAGE_SIZE)
extern void copy_page(void *to, const void *from);
typedef unsigned long pteval_t;
#undef STRICT_MM_TYPECHECKS
#ifdef STRICT_MM_TYPECHECKS
/*
* These are used to make use of C type-checking..
*/
typedef struct { unsigned long pte; } pte_t;
typedef struct { pteval_t pte; } pte_t;
typedef struct { unsigned long pmd; } pmd_t;
typedef struct { unsigned long pgd[2]; } pgd_t;
typedef struct { unsigned long pgprot; } pgprot_t;
@@ -175,7 +177,7 @@ typedef struct { unsigned long pgprot; } pgprot_t;
/*
* .. while these make it easier on the compiler
*/
typedef unsigned long pte_t;
typedef pteval_t pte_t;
typedef unsigned long pmd_t;
typedef unsigned long pgd_t[2];
typedef unsigned long pgprot_t;