1 files changed, 13 insertions, 4 deletions

diff --git a/include/uapi/linux/virtio_blk.h b/include/uapi/linux/virtio_blk.h
index 247c8ba8544a..3c53eec4ae22 100644
--- a/include/uapi/linux/virtio_blk.h
+++ b/include/uapi/linux/virtio_blk.h
@@ -31,22 +31,25 @@
 #include <linux/virtio_types.h>
 
 /* Feature bits */
-#define VIRTIO_BLK_F_BARRIER    0       /* Does host support barriers? */
 #define VIRTIO_BLK_F_SIZE_MAX   1       /* Indicates maximum segment size */
 #define VIRTIO_BLK_F_SEG_MAX    2       /* Indicates maximum # of segments */
 #define VIRTIO_BLK_F_GEOMETRY   4       /* Legacy geometry available  */
 #define VIRTIO_BLK_F_RO         5       /* Disk is read-only */
 #define VIRTIO_BLK_F_BLK_SIZE   6       /* Block size of disk is available*/
-#define VIRTIO_BLK_F_SCSI       7       /* Supports scsi command passthru */
-#define VIRTIO_BLK_F_WCE        9       /* Writeback mode enabled after reset */
 #define VIRTIO_BLK_F_TOPOLOGY   10      /* Topology information is available */
-#define VIRTIO_BLK_F_CONFIG_WCE 11      /* Writeback mode available in config */
 #define VIRTIO_BLK_F_MQ         12      /* support more than one vq */
 
+/* Legacy feature bits */
+#ifndef VIRTIO_BLK_NO_LEGACY
+#define VIRTIO_BLK_F_BARRIER    0       /* Does host support barriers? */
+#define VIRTIO_BLK_F_SCSI       7       /* Supports scsi command passthru */
+#define VIRTIO_BLK_F_WCE        9       /* Writeback mode enabled after reset */
+#define VIRTIO_BLK_F_CONFIG_WCE 11      /* Writeback mode available in config */
 #ifndef __KERNEL__
 /* Old (deprecated) name for VIRTIO_BLK_F_WCE. */
 #define VIRTIO_BLK_F_FLUSH VIRTIO_BLK_F_WCE
 #endif
+#endif /* !VIRTIO_BLK_NO_LEGACY */
 
 #define VIRTIO_BLK_ID_BYTES     20      /* ID string length */
 
@@ -100,8 +103,10 @@ struct virtio_blk_config {
 #define VIRTIO_BLK_T_IN         0
 #define VIRTIO_BLK_T_OUT        1
 
+#ifndef VIRTIO_BLK_NO_LEGACY
 /* This bit says it's a scsi command, not an actual read or write. */
 #define VIRTIO_BLK_T_SCSI_CMD   2
+#endif /* VIRTIO_BLK_NO_LEGACY */
 
 /* Cache flush command */
 #define VIRTIO_BLK_T_FLUSH      4
@@ -109,8 +114,10 @@ struct virtio_blk_config {
 /* Get device ID command */
 #define VIRTIO_BLK_T_GET_ID    8
 
+#ifndef VIRTIO_BLK_NO_LEGACY
 /* Barrier before this op. */
 #define VIRTIO_BLK_T_BARRIER    0x80000000
+#endif /* !VIRTIO_BLK_NO_LEGACY */
 
 /* This is the first element of the read scatter-gather list. */
 struct virtio_blk_outhdr {
@@ -122,12 +129,14 @@ struct virtio_blk_outhdr {
         __virtio64 sector;
 };
 
+#ifndef VIRTIO_BLK_NO_LEGACY
 struct virtio_scsi_inhdr {
         __virtio32 errors;
         __virtio32 data_len;
         __virtio32 sense_len;
         __virtio32 residual;
 };
+#endif /* !VIRTIO_BLK_NO_LEGACY */
 
 /* And this is the final byte of the write scatter-gather list. */
 #define VIRTIO_BLK_S_OK         0