2 files changed, 2 insertions, 0 deletions

diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h
index c45effc18312..3c597c222ef2 100644
--- a/arch/arm/include/asm/io.h
+++ b/arch/arm/include/asm/io.h
@@ -374,6 +374,7 @@ extern void pci_iounmap(struct pci_dev *dev, void __iomem *addr);
 #define BIOVEC_MERGEABLE(vec1, vec2)    \
         ((bvec_to_phys((vec1)) + (vec1)->bv_len) == bvec_to_phys((vec2)))
 
+struct bio_vec;
 extern bool xen_biovec_phys_mergeable(const struct bio_vec *vec1,
                                       const struct bio_vec *vec2);
 #define BIOVEC_PHYS_MERGEABLE(vec1, vec2)                               \
diff --git a/arch/arm64/include/asm/io.h b/arch/arm64/include/asm/io.h
index c163287b9871..757c87a04531 100644
--- a/arch/arm64/include/asm/io.h
+++ b/arch/arm64/include/asm/io.h
@@ -266,6 +266,7 @@ extern int devmem_is_allowed(unsigned long pfn);
  */
 #define xlate_dev_kmem_ptr(p)   p
 
+struct bio_vec;
 extern bool xen_biovec_phys_mergeable(const struct bio_vec *vec1,
                                       const struct bio_vec *vec2);
 #define BIOVEC_PHYS_MERGEABLE(vec1, vec2)                               \