ide-atapi: kill unused fields and callbacks

Impact: remove fields and code paths which are no longer necessary

Now that ide-tape uses standard mechanisms to transfer data, special
case handling for bh handling can be dropped from ide-atapi.  Drop the
followings.

* pc->cur_pos, b_count, bh and b_data
* drive->pc_update_buffers() and pc_io_buffers().

Signed-off-by: Tejun Heo <tj@kernel.org>

1 files changed, 0 insertions, 1 deletions

diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index 2599579e4174..8dfc68892d6a 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -591,7 +591,6 @@ static void ide_tape_create_rw_cmd(idetape_tape_t *tape,
         ide_init_pc(pc);
         put_unaligned(cpu_to_be32(length), (unsigned int *) &pc->c[1]);
         pc->c[1] = 1;
-        pc->bh = NULL;
         pc->buf = NULL;
         pc->buf_size = length * tape->blk_size;
         pc->req_xfer = pc->buf_size;