ide: allow any command requesting DMA data phase for HDIO_DRIVE_TASKFILE

Allow any command requesting DMA data phase for HDIO_DRIVE_TASKFILE ioctl
and remove no longer needed task_dma_ok()

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

1 files changed, 1 insertions, 21 deletions

diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c
index cf55a48a7dd2..994a5161c040 100644
--- a/drivers/ide/ide-taskfile.c
+++ b/drivers/ide/ide-taskfile.c
@@ -62,25 +62,6 @@ int taskfile_lib_get_identify (ide_drive_t *drive, u8 *buf)
         return ide_raw_taskfile(drive, &args, buf, 1);
 }
 
-static int inline task_dma_ok(ide_task_t *task)
-{
-        if (blk_fs_request(task->rq) || (task->tf_flags & IDE_TFLAG_FLAGGED))
-                return 1;
-
-        switch (task->tf.command) {
-                case WIN_WRITEDMA_ONCE:
-                case WIN_WRITEDMA:
-                case WIN_WRITEDMA_EXT:
-                case WIN_READDMA_ONCE:
-                case WIN_READDMA:
-                case WIN_READDMA_EXT:
-                case WIN_IDENTIFY_DMA:
-                        return 1;
-        }
-
-        return 0;
-}
-
 static ide_startstop_t task_no_data_intr(ide_drive_t *);
 static ide_startstop_t set_geometry_intr(ide_drive_t *);
 static ide_startstop_t recal_intr(ide_drive_t *);
@@ -139,8 +120,7 @@ ide_startstop_t do_rw_taskfile (ide_drive_t *drive, ide_task_t *task)
                                     WAIT_WORSTCASE, NULL);
                 return ide_started;
         default:
-                if (task_dma_ok(task) == 0 || drive->using_dma == 0 ||
-                    dma_ops->dma_setup(drive))
+                if (drive->using_dma == 0 || dma_ops->dma_setup(drive))
                         return ide_stopped;
                 dma_ops->dma_exec_cmd(drive, tf->command);
                 dma_ops->dma_start(drive);