ide-atapi: convert ide-{floppy,tape} to using preallocated sense buffer

Since we're issuing REQ_TYPE_SENSE now we need to allow those types of
rqs in the ->do_request callbacks. As a future improvement, sense_len
assignment might be unified across all ATAPI devices. Borislav to
check with specs and test.

As a result, get rid of ide_queue_pc_head() and
drive->request_sense_rq.

tj: * Init request sense ide_atapi_pc from sense request.  In the
      longer timer, it would probably better to fold
      ide_create_request_sense_cmd() into its only current user -
      ide_floppy_get_format_progress().

    * ide_retry_pc() no longer takes @disk.

CC: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
CC: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

1 files changed, 1 insertions, 2 deletions

diff --git a/include/linux/ide.h b/include/linux/ide.h
index a69ccac56411..9e67ccac3c1f 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -604,7 +604,6 @@ struct ide_drive_s {
         unsigned long atapi_flags;
 
         struct ide_atapi_pc request_sense_pc;
-        struct request request_sense_rq;
 
         /* current sense rq and buffer */
         bool sense_rq_armed;
@@ -1181,7 +1180,7 @@ int ide_do_test_unit_ready(ide_drive_t *, struct gendisk *);
 int ide_do_start_stop(ide_drive_t *, struct gendisk *, int);
 int ide_set_media_lock(ide_drive_t *, struct gendisk *, int);
 void ide_create_request_sense_cmd(ide_drive_t *, struct ide_atapi_pc *);
-void ide_retry_pc(ide_drive_t *, struct gendisk *);
+void ide_retry_pc(ide_drive_t *drive);
 
 void ide_prep_sense(ide_drive_t *drive, struct request *rq);
 void ide_queue_sense_rq(ide_drive_t *drive, void *special);