diff options
| author | Paul Mackerras <paulus@samba.org> | 2007-08-28 15:56:11 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-08-28 15:56:11 +1000 |
| commit | 35438c4327df18dbf5e7f597b69299119f4a14de (patch) | |
| tree | a4589d731015db93f2eba8f84ffb1f48a8084020 /include/asm-mips/pgtable.h | |
| parent | 2f6c9d961081dc7b109eb19166244bcb2a5dfc28 (diff) | |
| parent | b07d68b5ca4d55a16fab223d63d5fb36f89ff42f (diff) | |
Merge branch 'linux-2.6' into for-2.6.24
Diffstat (limited to 'include/asm-mips/pgtable.h')
| -rw-r--r-- | include/asm-mips/pgtable.h | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/include/asm-mips/pgtable.h b/include/asm-mips/pgtable.h index 2e2d70d13ff..d2ee2815674 100644 --- a/include/asm-mips/pgtable.h +++ b/include/asm-mips/pgtable.h @@ -168,11 +168,15 @@ static inline void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *pt #define set_pud(pudptr, pudval) do { *(pudptr) = (pudval); } while(0) #endif -#define PGD_T_LOG2 ffz(~sizeof(pgd_t)) -#define PMD_T_LOG2 ffz(~sizeof(pmd_t)) -#define PTE_T_LOG2 ffz(~sizeof(pte_t)) +#define PGD_T_LOG2 (__builtin_ffs(sizeof(pgd_t)) - 1) +#define PMD_T_LOG2 (__builtin_ffs(sizeof(pmd_t)) - 1) +#define PTE_T_LOG2 (__builtin_ffs(sizeof(pte_t)) - 1) -extern pgd_t swapper_pg_dir[PTRS_PER_PGD]; +/* + * We used to declare this array with size but gcc 3.3 and older are not able + * to find that this expression is a constant, so the size is dropped. + */ +extern pgd_t swapper_pg_dir[]; /* * The following only work if pte_present() is true. |