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-rw-r--r--include/linux/bitmap.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h
index dcafe0b..907dd58 100644
--- a/include/linux/bitmap.h
+++ b/include/linux/bitmap.h
@@ -145,6 +145,7 @@ extern void bitmap_release_region(unsigned long *bitmap, int pos, int order);
extern int bitmap_allocate_region(unsigned long *bitmap, int pos, int order);
extern void bitmap_copy_le(void *dst, const unsigned long *src, int nbits);
+#define BITMAP_FIRST_WORD_MASK(start) (~0UL << ((start) % BITS_PER_LONG))
#define BITMAP_LAST_WORD_MASK(nbits) \
( \
((nbits) % BITS_PER_LONG) ? \