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>

1 files changed, 7 insertions, 8 deletions

diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c
index f7fe1decb59d..2fb5d28a9be5 100644
--- a/drivers/ide/ide-atapi.c
+++ b/drivers/ide/ide-atapi.c
@@ -493,6 +493,7 @@ static void ide_init_packet_cmd(struct ide_cmd *cmd, u32 tf_flags,
         cmd->protocol  = dma ? ATAPI_PROT_DMA : ATAPI_PROT_PIO;
         cmd->tf_flags |= IDE_TFLAG_OUT_LBAH | IDE_TFLAG_OUT_LBAM |
                          IDE_TFLAG_OUT_FEATURE | tf_flags;
+        cmd->tf.command = ATA_CMD_PACKET;
         cmd->tf.feature = dma;          /* Use PIO/DMA */
         cmd->tf.lbam    = bcount & 0xff;
         cmd->tf.lbah    = (bcount >> 8) & 0xff;
@@ -638,6 +639,7 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive, struct ide_cmd *cmd)
         unsigned int timeout;
         u32 tf_flags;
         u16 bcount;
+        u8 drq_int = !!(drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT);
 
         if (dev_is_idecd(drive)) {
                 tf_flags = IDE_TFLAG_OUT_NSECT | IDE_TFLAG_OUT_LBAL;
@@ -687,17 +689,14 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive, struct ide_cmd *cmd)
 
         (void)do_rw_taskfile(drive, cmd);
 
-        /* Issue the packet command */
-        if (drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT) {
+        if (drq_int) {
                 if (drive->dma)
                         drive->waiting_for_dma = 0;
                 hwif->expiry = expiry;
-                ide_execute_command(drive, ATA_CMD_PACKET, ide_transfer_pc,
-                                    timeout);
-                return ide_started;
-        } else {
-                ide_execute_pkt_cmd(drive);
-                return ide_transfer_pc(drive);
         }
+
+        ide_execute_command(drive, cmd, ide_transfer_pc, timeout);
+
+        return drq_int ? ide_started : ide_transfer_pc(drive);
 }
 EXPORT_SYMBOL_GPL(ide_issue_pc);