ide-floppy: use ide_pio_bytes()

* Fix ide_init_sg_cmd() setup for non-fs requests.

* Convert ide_pc_intr() to use ide_pio_bytes() for floppy media.

* Remove no longer needed ide_io_buffers() and sg/sg_cnt fields
  from struct ide_atapi_pc.

* Remove partial completions; kill idefloppy_update_buffers(), as a
  result.

* Add some more debugging statements.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 5 insertions, 19 deletions

diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index 0faae3098295..2b4868d95f8b 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -61,16 +61,6 @@
  */
 #define IDEFLOPPY_PC_DELAY      (HZ/20) /* default delay for ZIP 100 (50ms) */
 
-static void idefloppy_update_buffers(ide_drive_t *drive,
-                                struct ide_atapi_pc *pc)
-{
-        struct request *rq = pc->rq;
-        struct bio *bio = rq->bio;
-
-        while ((bio = rq->bio) != NULL)
-                ide_complete_rq(drive, 0, ide_rq_bytes(rq));
-}
-
 static int ide_floppy_callback(ide_drive_t *drive, int dsc)
 {
         struct ide_disk_obj *floppy = drive->driver_data;
@@ -213,7 +203,6 @@ static void idefloppy_create_rw_cmd(ide_drive_t *drive,
         memcpy(rq->cmd, pc->c, 12);
 
         pc->rq = rq;
-        pc->b_count = 0;
         if (rq->cmd_flags & REQ_RW)
                 pc->flags |= PC_FLAG_WRITING;
         pc->buf = NULL;
@@ -227,7 +216,6 @@ static void idefloppy_blockpc_cmd(struct ide_disk_obj *floppy,
         ide_init_pc(pc);
         memcpy(pc->c, rq->cmd, sizeof(pc->c));
         pc->rq = rq;
-        pc->b_count = 0;
         if (rq->data_len && rq_data_dir(rq) == WRITE)
                 pc->flags |= PC_FLAG_WRITING;
         pc->buf = rq->data;
@@ -244,10 +232,11 @@ static ide_startstop_t ide_floppy_do_request(ide_drive_t *drive,
                                              struct request *rq, sector_t block)
 {
         struct ide_disk_obj *floppy = drive->driver_data;
-        ide_hwif_t *hwif = drive->hwif;
         struct ide_cmd cmd;
         struct ide_atapi_pc *pc;
 
+        ide_debug_log(IDE_DBG_FUNC, "enter, cmd: 0x%x\n", rq->cmd[0]);
+
         if (drive->debug_mask & IDE_DBG_RQ)
                 blk_dump_rq_flags(rq, (rq->rq_disk
                                         ? rq->rq_disk->disk_name
@@ -294,13 +283,10 @@ static ide_startstop_t ide_floppy_do_request(ide_drive_t *drive,
         cmd.rq = rq;
 
         if (blk_fs_request(rq) || pc->req_xfer) {
-                ide_init_sg_cmd(&cmd, rq->nr_sectors << 9);
+                ide_init_sg_cmd(&cmd, pc->req_xfer);
                 ide_map_sg(drive, &cmd);
         }
 
-        pc->sg = hwif->sg_table;
-        pc->sg_cnt = cmd.sg_nents;
-
         pc->rq = rq;
 
         return ide_floppy_issue_pc(drive, &cmd, pc);
@@ -388,6 +374,8 @@ static int ide_floppy_get_capacity(ide_drive_t *drive)
         u8 pc_buf[256], header_len, desc_cnt;
         int i, rc = 1, blocks, length;
 
+        ide_debug_log(IDE_DBG_FUNC, "enter");
+
         drive->bios_cyl = 0;
         drive->bios_head = drive->bios_sect = 0;
         floppy->blocks = 0;
@@ -488,8 +476,6 @@ static void ide_floppy_setup(ide_drive_t *drive)
         u16 *id = drive->id;
 
         drive->pc_callback       = ide_floppy_callback;
-        drive->pc_update_buffers = idefloppy_update_buffers;
-        drive->pc_io_buffers     = ide_io_buffers;
 
         /*
          * We used to check revisions here. At this point however I'm giving up.