Openwrt/target/linux/brcm47xx/patches-2.6.32/300-fork_cacheflush.patch

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--- a/arch/mips/include/asm/cacheflush.h
+++ b/arch/mips/include/asm/cacheflush.h
@@ -32,7 +32,7 @@
extern void (*flush_cache_all)(void);
extern void (*__flush_cache_all)(void);
extern void (*flush_cache_mm)(struct mm_struct *mm);
-#define flush_cache_dup_mm(mm) do { (void) (mm); } while (0)
+#define flush_cache_dup_mm(mm) flush_cache_mm(mm)
extern void (*flush_cache_range)(struct vm_area_struct *vma,
unsigned long start, unsigned long end);
extern void (*flush_cache_page)(struct vm_area_struct *vma, unsigned long page, unsigned long pfn);