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diff --git a/bitops.h b/bitops.h
index 323c571..7f30b06 100644
--- a/kernel-lib/bitops.h
+++ b/kernel-lib/bitops.h
@@ -69,6 +65,9 @@ static inline unsigned long hweight_long(unsigned long w)
 }
 
 #define BITOP_WORD(nr)		((nr) / BITS_PER_LONG)
+#ifndef __always_inline
+#define __always_inline         inline __attribute__((always_inline))
+#endif
 
 /**
  * __ffs - find first bit in word.
diff --git a/kerncompat.h.orig b/kerncompat.h
index bb03194e127e..28f832a2e625 100644
--- a/kerncompat.h
+++ b/kerncompat.h
@@ -28,6 +28,7 @@
 #include <assert.h>
 #include <stddef.h>
 #include <linux/types.h>
+#include <linux/limits.h>
 #include <stdint.h>
 
 #define ptr_to_u64(x)	((u64)(uintptr_t)x)