ide: add ide_issue_pc() helper

Add generic ide_issue_pc() helper to ide-atapi.c and then
convert ide-{floppy,tape,scsi} device drivers to use it.

There should be no functional changes caused by this patch.

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

1 files changed, 2 insertions, 33 deletions

diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index 13f650fa2125..e658aafc51da 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -576,9 +576,6 @@ static ide_startstop_t idefloppy_issue_pc(ide_drive_t *drive,
                 struct ide_atapi_pc *pc)
 {
         idefloppy_floppy_t *floppy = drive->driver_data;
-        ide_hwif_t *hwif = drive->hwif;
-        u16 bcount;
-        u8 dma;
 
         if (floppy->failed_pc == NULL &&
             pc->c[0] != GPCMD_REQUEST_SENSE)
@@ -600,37 +597,9 @@ static ide_startstop_t idefloppy_issue_pc(ide_drive_t *drive,
         debug_log("Retry number - %d\n", pc->retries);
 
         pc->retries++;
-        /* We haven't transferred any data yet */
-        pc->xferred = 0;
-        pc->cur_pos = pc->buf;
-        bcount = min(pc->req_xfer, 63 * 1024);
-
-        if (pc->flags & PC_FLAG_DMA_ERROR) {
-                pc->flags &= ~PC_FLAG_DMA_ERROR;
-                ide_dma_off(drive);
-        }
-        dma = 0;
 
-        if ((pc->flags & PC_FLAG_DMA_OK) && drive->using_dma)
-                dma = !hwif->dma_ops->dma_setup(drive);
-
-        if (!dma)
-                pc->flags &= ~PC_FLAG_DMA_OK;
-
-        ide_pktcmd_tf_load(drive, IDE_TFLAG_OUT_DEVICE, bcount, dma);
-
-        if (pc->flags & PC_FLAG_DRQ_INTERRUPT) {
-                /* Issue the packet command */
-                ide_execute_command(drive, WIN_PACKETCMD,
-                                &idefloppy_transfer_pc1,
-                                IDEFLOPPY_WAIT_CMD,
-                                NULL);
-                return ide_started;
-        } else {
-                /* Issue the packet command */
-                ide_execute_pkt_cmd(drive);
-                return idefloppy_transfer_pc1(drive);
-        }
+        return ide_issue_pc(drive, pc, idefloppy_transfer_pc1,
+                            IDEFLOPPY_WAIT_CMD, NULL);
 }
 
 static void idefloppy_create_prevent_cmd(struct ide_atapi_pc *pc, int prevent)