[MIPS] Gcc 3.3 build fixes.

Work around gcc 3.3's unability to evaluate that certain expressions indeed
are constant.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 5 insertions, 1 deletions

diff --git a/include/asm-mips/pgtable.h b/include/asm-mips/pgtable.h
index e2fb9dbac3fc..d2ee28156743 100644
--- a/include/asm-mips/pgtable.h
+++ b/include/asm-mips/pgtable.h
@@ -172,7 +172,11 @@ static inline void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *pt
 #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.