ide: drop 'timeout' and 'expiry' arguments from ide_pc_intr()

* Move idescsi_expiry() to ide-atapi.c.

* Move get_timeout() to <linux/ide.h>.

* Drop 'timeout' and 'expiry' arguments from ide_pc_intr().

While at it:

* idescsi_expiry() -> ide_scsi_expiry()

* get_timeout() -> ide_scsi_get_timeout()

There should be no functional changes caused by this patch.

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

5 files changed, 42 insertions, 35 deletions

diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c
index 0069c4f08244..184835141412 100644
--- a/drivers/ide/ide-atapi.c
+++ b/drivers/ide/ide-atapi.c
@@ -203,9 +203,21 @@ int ide_set_media_lock(ide_drive_t *drive, struct gendisk *disk, int on)
 }
 EXPORT_SYMBOL_GPL(ide_set_media_lock);
 
+int ide_scsi_expiry(ide_drive_t *drive)
+{
+        struct ide_atapi_pc *pc = drive->pc;
+
+        debug_log("%s called for %lu at %lu\n", __func__,
+                  pc->scsi_cmd->serial_number, jiffies);
+
+        pc->flags |= PC_FLAG_TIMEDOUT;
+
+        return 0; /* we do not want the IDE subsystem to retry */
+}
+EXPORT_SYMBOL_GPL(ide_scsi_expiry);
+
 /* TODO: unify the code thus making some arguments go away */
-ide_startstop_t ide_pc_intr(ide_drive_t *drive,
-        ide_handler_t *handler, unsigned int timeout, ide_expiry_t *expiry,
+ide_startstop_t ide_pc_intr(ide_drive_t *drive, ide_handler_t *handler,
         void (*update_buffers)(ide_drive_t *, struct ide_atapi_pc *),
         void (*retry_pc)(ide_drive_t *),
         int (*io_buffers)(ide_drive_t *, struct ide_atapi_pc *, unsigned, int))
@@ -215,12 +227,22 @@ ide_startstop_t ide_pc_intr(ide_drive_t *drive,
         struct request *rq = hwif->hwgroup->rq;
         const struct ide_tp_ops *tp_ops = hwif->tp_ops;
         xfer_func_t *xferfunc;
-        unsigned int temp;
+        ide_expiry_t *expiry;
+        unsigned int timeout, temp;
         u16 bcount;
         u8 stat, ireason, scsi = drive->scsi, dsc = 0;
 
         debug_log("Enter %s - interrupt handler\n", __func__);
 
+        if (scsi) {
+                timeout = ide_scsi_get_timeout(pc);
+                expiry = ide_scsi_expiry;
+        } else {
+                timeout = (drive->media == ide_floppy) ? WAIT_FLOPPY_CMD
+                                                       : WAIT_TAPE_CMD;
+                expiry = NULL;
+        }
+
         if (pc->flags & PC_FLAG_TIMEDOUT) {
                 drive->pc_callback(drive, 0);
                 return ide_stopped;
@@ -347,9 +369,7 @@ cmd_finished:
                                 pc->xferred += temp;
                                 pc->cur_pos += temp;
                                 ide_pad_transfer(drive, 0, bcount - temp);
-                                ide_set_handler(drive, handler, timeout,
-                                                expiry);
-                                return ide_started;
+                                goto next_irq;
                         }
                         debug_log("The device wants to send us more data than "
                                   "expected - allowing transfer\n");
@@ -376,7 +396,7 @@ cmd_finished:
 
         debug_log("[cmd %x] transferred %d bytes on that intr.\n",
                   rq->cmd[0], bcount);
-
+next_irq:
         /* And set the interrupt handler again */
         ide_set_handler(drive, handler, timeout, expiry);
         return ide_started;
diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index cb89caf07913..49e702670b8e 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -219,8 +219,7 @@ static void idefloppy_retry_pc(ide_drive_t *drive)
 /* The usual interrupt handler called during a packet command. */
 static ide_startstop_t idefloppy_pc_intr(ide_drive_t *drive)
 {
-        return ide_pc_intr(drive, idefloppy_pc_intr,
-                           WAIT_FLOPPY_CMD, NULL, idefloppy_update_buffers,
+        return ide_pc_intr(drive, idefloppy_pc_intr, idefloppy_update_buffers,
                            idefloppy_retry_pc, ide_io_buffers);
 }
 
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index 5b2ac04d9be9..fe8502afd2ea 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -655,9 +655,8 @@ static int ide_tape_io_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc,
  */
 static ide_startstop_t idetape_pc_intr(ide_drive_t *drive)
 {
-        return ide_pc_intr(drive, idetape_pc_intr, WAIT_TAPE_CMD,
-                           NULL, idetape_update_buffers, idetape_retry_pc,
-                           ide_tape_io_buffers);
+        return ide_pc_intr(drive, idetape_pc_intr, idetape_update_buffers,
+                           idetape_retry_pc, ide_tape_io_buffers);
 }
 
 /*
diff --git a/drivers/scsi/ide-scsi.c b/drivers/scsi/ide-scsi.c
index bb8b3b123c7d..f71d1b34c3b1 100644
--- a/drivers/scsi/ide-scsi.c
+++ b/drivers/scsi/ide-scsi.c
@@ -270,36 +270,19 @@ static int idescsi_end_request (ide_drive_t *drive, int uptodate, int nrsecs)
         return 0;
 }
 
-static inline unsigned long get_timeout(struct ide_atapi_pc *pc)
-{
-        return max_t(unsigned long, WAIT_CMD, pc->timeout - jiffies);
-}
-
-static int idescsi_expiry(ide_drive_t *drive)
-{
-        struct ide_atapi_pc *pc = drive->pc;
-
-        debug_log("%s called for %lu at %lu\n", __func__,
-                  pc->scsi_cmd->serial_number, jiffies);
-
-        pc->flags |= PC_FLAG_TIMEDOUT;
-
-        return 0;                                       /* we do not want the ide subsystem to retry */
-}
-
 /*
  *      Our interrupt handler.
  */
 static ide_startstop_t idescsi_pc_intr (ide_drive_t *drive)
 {
-        return ide_pc_intr(drive, idescsi_pc_intr, get_timeout(drive->pc),
-                           idescsi_expiry, NULL, NULL, ide_io_buffers);
+        return ide_pc_intr(drive, idescsi_pc_intr, NULL, NULL, ide_io_buffers);
 }
 
 static ide_startstop_t idescsi_transfer_pc(ide_drive_t *drive)
 {
         return ide_transfer_pc(drive, idescsi_pc_intr,
-                               get_timeout(drive->pc), idescsi_expiry);
+                               ide_scsi_get_timeout(drive->pc),
+                               ide_scsi_expiry);
 }
 
 static inline int idescsi_set_direction(struct ide_atapi_pc *pc)
@@ -348,7 +331,7 @@ static ide_startstop_t idescsi_issue_pc(ide_drive_t *drive,
         drive->pc = pc;
 
         return ide_issue_pc(drive, idescsi_transfer_pc,
-                            get_timeout(pc), idescsi_expiry);
+                            ide_scsi_get_timeout(pc), ide_scsi_expiry);
 }
 
 /*
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 98d29df1ee04..3bf2bf0a56dc 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1175,8 +1175,14 @@ int ide_do_test_unit_ready(ide_drive_t *, struct gendisk *);
 int ide_do_start_stop(ide_drive_t *, struct gendisk *, int);
 int ide_set_media_lock(ide_drive_t *, struct gendisk *, int);
 
-ide_startstop_t ide_pc_intr(ide_drive_t *drive,
-        ide_handler_t *handler, unsigned int timeout, ide_expiry_t *expiry,
+static inline unsigned long ide_scsi_get_timeout(struct ide_atapi_pc *pc)
+{
+        return max_t(unsigned long, WAIT_CMD, pc->timeout - jiffies);
+}
+
+int ide_scsi_expiry(ide_drive_t *);
+
+ide_startstop_t ide_pc_intr(ide_drive_t *drive, ide_handler_t *handler,
         void (*update_buffers)(ide_drive_t *, struct ide_atapi_pc *),
         void (*retry_pc)(ide_drive_t *),
         int (*io_buffers)(ide_drive_t *, struct ide_atapi_pc *, unsigned int,