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-rw-r--r--include/linux/bio.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/bio.h b/include/linux/bio.h
index 4d85262b4fa4..1ddef34f43c3 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -24,6 +24,8 @@
#include <linux/mempool.h>
#include <linux/ioprio.h>
+#ifdef CONFIG_BLOCK
+
/* Platforms may set this to teach the BIO layer about IOMMU hardware. */
#include <asm/io.h>
@@ -361,4 +363,5 @@ static inline char *__bio_kmap_irq(struct bio *bio, unsigned short idx,
__bio_kmap_irq((bio), (bio)->bi_idx, (flags))
#define bio_kunmap_irq(buf,flags) __bio_kunmap_irq(buf, flags)
+#endif /* CONFIG_BLOCK */
#endif /* __LINUX_BIO_H */