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-rw-r--r--include/linux/raid/pq.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/raid/pq.h b/include/linux/raid/pq.h
index 0c245dcb8b48..d7c99161bba2 100644
--- a/include/linux/raid/pq.h
+++ b/include/linux/raid/pq.h
@@ -53,7 +53,9 @@ extern const char raid6_empty_zero_page[PAGE_SIZE];
#define __init
#define __exit
-#define __attribute_const__ __attribute__((const))
+#ifndef __attribute_const__
+# define __attribute_const__ __attribute__((const))
+#endif
#define noinline __attribute__((noinline))
#define preempt_enable()