compiler: introduce __used and __maybe_unused

[powerpc.git] / mm / memory.c

diff --git a/mm/memory.c b/mm/memory.c
index 044feb7..1d647ab 100644 (file)
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -1455,7 +1455,7 @@ static int apply_to_pte_range(struct mm_struct *mm, pmd_t *pmd,
        pte_t *pte;
        int err;
        struct page *pmd_page;
-       spinlock_t *ptl = ptl;          /* Suppress gcc warning */
+       spinlock_t *uninitialized_var(ptl);
 
        pte = (mm == &init_mm) ?
                pte_alloc_kernel(pmd, addr) :
@@ -2633,12 +2633,6 @@ int __pud_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long address)
        spin_unlock(&mm->page_table_lock);
        return 0;
 }
-#else
-/* Workaround for gcc 2.96 */
-int __pud_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long address)
-{
-       return 0;
-}
 #endif /* __PAGETABLE_PUD_FOLDED */
 
 #ifndef __PAGETABLE_PMD_FOLDED
@@ -2667,12 +2661,6 @@ int __pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long address)
        spin_unlock(&mm->page_table_lock);
        return 0;
 }
-#else
-/* Workaround for gcc 2.96 */
-int __pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long address)
-{
-       return 0;
-}
 #endif /* __PAGETABLE_PMD_FOLDED */
 
 int make_pages_present(unsigned long addr, unsigned long end)