ide: remove no longer needed IRQ auto-probing from try_to_identify() (v2)

v2:
Update actual_try_to_identify() documentation.

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

diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index ebc328c..c63c078 100644 (file)
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -255,9 +255,7 @@ err_misc:
  *     @cmd: command to use
  *
  *     try_to_identify() sends an ATA(PI) IDENTIFY request to a drive
- *     and waits for a response.  It also monitors irqs while this is
- *     happening, in hope of automatically determining which one is
- *     being used by the interface.
+ *     and waits for a response.
  *
  *     Returns:        0  device was identified
  *                     1  device timed-out (no response to identify request)
@@ -334,56 +332,22 @@ static int actual_try_to_identify (ide_drive_t *drive, u8 cmd)
  *     @drive: drive to probe
  *     @cmd: command to use
  *
- *     Issue the identify command and then do IRQ probing to
- *     complete the identification when needed by finding the
- *     IRQ the drive is attached to
+ *     Issue the identify command.
  */
  
 static int try_to_identify (ide_drive_t *drive, u8 cmd)
 {
        ide_hwif_t *hwif = drive->hwif;
        const struct ide_tp_ops *tp_ops = hwif->tp_ops;
-       int retval;
-       int autoprobe = 0;
-       unsigned long cookie = 0;
 
        /*
-        * Disable device irq unless we need to
-        * probe for it. Otherwise we'll get spurious
-        * interrupts during the identify-phase that
-        * the irq handler isn't expecting.
+        * Disable device IRQ.  Otherwise we'll get spurious interrupts
+        * during the identify phase that the IRQ handler isn't expecting.
         */
-       if (hwif->io_ports.ctl_addr) {
-               if (!hwif->irq) {
-                       autoprobe = 1;
-                       cookie = probe_irq_on();
-               }
-               tp_ops->set_irq(hwif, autoprobe);
-       }
-
-       retval = actual_try_to_identify(drive, cmd);
-
-       if (autoprobe) {
-               int irq;
-
+       if (hwif->io_ports.ctl_addr)
                tp_ops->set_irq(hwif, 0);
-               /* clear drive IRQ */
-               (void)tp_ops->read_status(hwif);
-               udelay(5);
-               irq = probe_irq_off(cookie);
-               if (!hwif->irq) {
-                       if (irq > 0) {
-                               hwif->irq = irq;
-                       } else {
-                               /* Mmmm.. multiple IRQs..
-                                * don't know which was ours
-                                */
-                               printk(KERN_ERR "%s: IRQ probe failed (0x%lx)\n",
-                                       drive->name, cookie);
-                       }
-               }
-       }
-       return retval;
+
+       return actual_try_to_identify(drive, cmd);
 }
 
 int ide_busy_sleep(ide_hwif_t *hwif, unsigned long timeout, int altstatus)