[PATCH] Workaround for gcc 2.96 (undefined references)

[Alan Stern]

Andrew:

As of 2.6.15-rc1-git4, gcc 2.96 complains about undefined references 
unless this patch (as607) is applied.  Apparently the old compiler isn't 
so good at avoiding linker references to unused code.

Alan Stern



Signed-off-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>

---

Index: usb-2.6/mm/memory.c
===================================================================
--- usb-2.6.orig/mm/memory.c
+++ usb-2.6/mm/memory.c
@@ -2101,6 +2101,13 @@ int __pud_alloc(struct mm_struct *mm, pg
 	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
@@ -2129,6 +2136,13 @@ int __pmd_alloc(struct mm_struct *mm, pu
 	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)

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