virtio_blk: Revert serial number support

This reverts "Add serial number support for virtio_blk, V4a".

Turns out that virtio_pci, lguest and s/390 all have an 8 bit limit
on virtio config space, so noone could ever use this.

This is coming back later in a cleaner form.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: john cooper <john.cooper@redhat.com>
Cc: Jens Axboe <jens.axboe@oracle.com>

1 files changed, 0 insertions, 4 deletions

diff --git a/include/linux/virtio_blk.h b/include/linux/virtio_blk.h
index 1e19470d2da2..fd294c56d571 100644
--- a/include/linux/virtio_blk.h
+++ b/include/linux/virtio_blk.h
@@ -14,11 +14,8 @@
 #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_IDENTIFY   8       /* ATA IDENTIFY supported */
 #define VIRTIO_BLK_F_FLUSH      9       /* Cache flush command support */
 
-#define VIRTIO_BLK_ID_BYTES     (sizeof(__u16[256]))    /* IDENTIFY DATA */
-
 struct virtio_blk_config {
         /* The capacity (in 512-byte sectors). */
         __u64 capacity;
@@ -34,7 +31,6 @@ struct virtio_blk_config {
         } geometry;
         /* block size of device (if VIRTIO_BLK_F_BLK_SIZE) */
         __u32 blk_size;
-        __u8 identify[VIRTIO_BLK_ID_BYTES];
 } __attribute__((packed));
 
 /*