ide: remove ide_execute_pkt_cmd() (v2)

* Pass command structure to ide_execute_command() and skip
  __ide_set_handler() for ATAPI protocols on non-DRQ devices.

* Convert ide_issue_pc() to always use ide_execute_command()
  and remove no longer needed ide_execute_pkt_cmd().

v2:
* Fix for non-DRQ devices (based on report from Borislav).

There should be no functional changes caused by this patch.

Acked-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 9476939..2d0c7af 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1138,9 +1138,8 @@
 void __ide_set_handler(ide_drive_t *, ide_handler_t *, unsigned int);
 void ide_set_handler(ide_drive_t *, ide_handler_t *, unsigned int);
 
-void ide_execute_command(ide_drive_t *, u8, ide_handler_t *, unsigned int);
-
-void ide_execute_pkt_cmd(ide_drive_t *);
+void ide_execute_command(ide_drive_t *, struct ide_cmd *, ide_handler_t *,
+			 unsigned int);
 
 void ide_pad_transfer(ide_drive_t *, int, int);