X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=include%2Fasm-mips%2Fpgtable.h;h=17a7703a296961858502ee636a15a7ccaecbe390;hb=6b41016032accca5a0ca8bbd35ec5fd7f7bc3aeb;hp=2e2d70d13ff6b0e352d0664b06c8021a599527c4;hpb=b91cba52e9b7b3f1c0037908a192d93a869ca9e5;p=powerpc.git

diff --git a/include/asm-mips/pgtable.h b/include/asm-mips/pgtable.h
index 2e2d70d13f..17a7703a29 100644
--- a/include/asm-mips/pgtable.h
+++ b/include/asm-mips/pgtable.h
@@ -103,7 +103,7 @@ static inline void set_pte(pte_t *ptep, pte_t pte)
 		}
 	}
 }
-#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
+#define set_pte_at(mm, addr, ptep, pteval) set_pte(ptep, pteval)
 
 static inline void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
 {
@@ -140,7 +140,7 @@ static inline void set_pte(pte_t *ptep, pte_t pteval)
 	}
 #endif
 }
-#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
+#define set_pte_at(mm, addr, ptep, pteval) set_pte(ptep, pteval)
 
 static inline void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
 {
@@ -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.