diff --git a/include/linux/bio.h b/include/linux/bio.h
index 70654521dab6..d6791bba8264 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -332,6 +332,7 @@ extern struct bio *bio_clone_fast(struct bio *, gfp_t, struct bio_set *);
 extern struct bio *bio_clone_bioset(struct bio *, gfp_t, struct bio_set *bs);
 
 extern struct bio_set *fs_bio_set;
+unsigned int bio_integrity_tag_size(struct bio *bio);
 
 static inline struct bio *bio_alloc(gfp_t gfp_mask, unsigned int nr_iovecs)
 {