ide: add PC_FLAG_DRQ_INTERRUPT pc flag

Add PC_FLAG_DRQ_INTERRUPT pc flag, set it in ide*_do_request()
and check for it (instead of checking for IDE*_FLAG_DRQ_INTERRUPT)
in ide*_issue_pc().  This is a preparation for adding generic
ide_issue_pc() helper.

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, 8 insertions, 3 deletions

diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index 5adc2c9ae418..cba18a675506 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -1020,7 +1020,7 @@ static ide_startstop_t idetape_issue_pc(ide_drive_t *drive,
 
         ide_pktcmd_tf_load(drive, IDE_TFLAG_OUT_DEVICE, bcount, dma_ok);
 
-        if (test_bit(IDETAPE_FLAG_DRQ_INTERRUPT, &tape->flags)) {
+        if (pc->flags & PC_FLAG_DRQ_INTERRUPT) {
                 ide_execute_command(drive, WIN_PACKETCMD, &idetape_transfer_pc,
                                     IDETAPE_WAIT_CMD, NULL);
                 return ide_started;
@@ -1143,8 +1143,10 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive,
         }
 
         /* Retry a failed packet command */
-        if (tape->failed_pc && tape->pc->c[0] == REQUEST_SENSE)
-                return idetape_issue_pc(drive, tape->failed_pc);
+        if (tape->failed_pc && tape->pc->c[0] == REQUEST_SENSE) {
+                pc = tape->failed_pc;
+                goto out;
+        }
 
         if (postponed_rq != NULL)
                 if (rq != postponed_rq) {
@@ -1216,6 +1218,9 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive,
         }
         BUG();
 out:
+        if (test_bit(IDETAPE_FLAG_DRQ_INTERRUPT, &tape->flags))
+                pc->flags |= PC_FLAG_DRQ_INTERRUPT;
+
         return idetape_issue_pc(drive, pc);
 }