block: move sd_format_disk_name() into block core as disk_name_format()

This patch series renames "sd_format_disk_name()" to "disk_name_format()" and moves it into block core. So that who needs formatting disk name can use it, instead of duplicating these similar help functions.

Ren Mingxin (4):
block: add function disk_name_format() into block core
scsi: replace sd_format_disk_name() to disk_name_format()
block: replace rssd_disk_name_format() to disk_name_format()
virtio_blk: use disk_name_format() to support mass of disks naming

 block/genhd.c                     |   49 ++++++++++++++++++++++++++++++++++++++
 drivers/block/mtip32xx/mtip32xx.c |   33 -------------------------
 drivers/block/virtio_blk.c        |   13 ----------
 drivers/scsi/sd.c                 |   48 -------------------------------------
 include/linux/genhd.h             |    2 +
 5 files changed, 54 insertions(+), 91 deletions(-)

Any comment will be appreciated.

Thanks,
Ren