1 files changed, 12 insertions, 10 deletions

diff --git a/include/linux/virtio_blk.h b/include/linux/virtio_blk.h
index 7bd2bce0cfd9..bca0b10d7947 100644
--- a/include/linux/virtio_blk.h
+++ b/include/linux/virtio_blk.h
@@ -6,15 +6,19 @@
 #define VIRTIO_ID_BLOCK 2
 
 /* Feature bits */
-#define VIRTIO_CONFIG_BLK_F     0x40
-#define VIRTIO_BLK_F_BARRIER    1       /* Does host support barriers? */
+#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 */
 
-/* The capacity (in 512-byte sectors). */
-#define VIRTIO_CONFIG_BLK_F_CAPACITY    0x41
-/* The maximum segment size. */
-#define VIRTIO_CONFIG_BLK_F_SIZE_MAX    0x42
-/* The maximum number of segments. */
-#define VIRTIO_CONFIG_BLK_F_SEG_MAX     0x43
+struct virtio_blk_config
+{
+        /* The capacity (in 512-byte sectors). */
+        __le64 capacity;
+        /* The maximum segment size (if VIRTIO_BLK_F_SIZE_MAX) */
+        __le32 size_max;
+        /* The maximum number of segments (if VIRTIO_BLK_F_SEG_MAX) */
+        __le32 seg_max;
+} __attribute__((packed));
 
 /* These two define direction. */
 #define VIRTIO_BLK_T_IN         0
@@ -35,8 +39,6 @@ struct virtio_blk_outhdr
         __u32 ioprio;
         /* Sector (ie. 512 byte offset) */
         __u64 sector;
-        /* Where to put reply. */
-        __u64 id;
 };
 
 #define VIRTIO_BLK_S_OK         0