ide: make ide_get_best_pio_mode() print info if overriding PIO mode

* Print info about overriding PIO mode in ide_get_best_pio_mode().

* Remove info about overriding PIO mode from cmd64{0,x} host drivers.

* Remove no longer needed ide_pio_data_t.overridden field.

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

3 files changed, 12 insertions, 10 deletions

diff --git a/drivers/ide/ide-lib.c b/drivers/ide/ide-lib.c
index 074bb32a4a40..d45bbad9ffe7 100644
--- a/drivers/ide/ide-lib.c
+++ b/drivers/ide/ide-lib.c
@@ -277,7 +277,7 @@ u8 ide_get_best_pio_mode (ide_drive_t *drive, u8 mode_wanted, u8 max_mode, ide_p
         } else if (!drive->id) {
                 pio_mode = 0;
         } else if ((pio_mode = ide_scan_pio_blacklist(id->model)) != -1) {
-                overridden = 1;
+                printk(KERN_INFO "%s: is on PIO blacklist\n", drive->name);
                 use_iordy = (pio_mode > 2);
         } else {
                 pio_mode = id->tPIO;
@@ -303,12 +303,17 @@ u8 ide_get_best_pio_mode (ide_drive_t *drive, u8 mode_wanted, u8 max_mode, ide_p
                         }
                 }
 
+                if (overridden)
+                        printk(KERN_INFO "%s: tPIO > 2, assuming tPIO = 2\n",
+                                         drive->name);
+
                 /*
                  * Conservative "downgrade" for all pre-ATA2 drives
                  */
                 if (pio_mode && pio_mode < 4) {
                         pio_mode--;
-                        overridden = 1;
+                        printk(KERN_INFO "%s: applying conservative "
+                                         "PIO \"downgrade\"\n", drive->name);
                         if (cycle_time && cycle_time < ide_pio_timings[pio_mode].cycle_time)
                                 cycle_time = 0; /* use standard timing */
                 }
@@ -321,7 +326,6 @@ u8 ide_get_best_pio_mode (ide_drive_t *drive, u8 mode_wanted, u8 max_mode, ide_p
                 d->pio_mode = pio_mode;
                 d->cycle_time = cycle_time ? cycle_time : ide_pio_timings[pio_mode].cycle_time;
                 d->use_iordy = use_iordy;
-                d->overridden = overridden;
         }
         return pio_mode;
 }
diff --git a/drivers/ide/pci/cmd640.c b/drivers/ide/pci/cmd640.c
index dc43f009acab..dff21597e643 100644
--- a/drivers/ide/pci/cmd640.c
+++ b/drivers/ide/pci/cmd640.c
@@ -665,13 +665,12 @@ static void cmd640_tune_drive (ide_drive_t *drive, u8 mode_wanted)
         (void) ide_get_best_pio_mode (drive, mode_wanted, 5, &d);
         cmd640_set_mode (index, d.pio_mode, d.cycle_time);
 
-        printk ("%s: selected cmd640 PIO mode%d (%dns)%s",
+        printk("%s: selected cmd640 PIO mode%d (%dns)",
                 drive->name,
                 d.pio_mode,
-                d.cycle_time,
-                d.overridden ? " (overriding vendor mode)" : "");
+                d.cycle_time);
+
         display_clocks(index);
-        return;
 }
 
 #endif /* CONFIG_BLK_DEV_CMD640_ENHANCED */
diff --git a/drivers/ide/pci/cmd64x.c b/drivers/ide/pci/cmd64x.c
index 1e89dd6e5bbf..5171e94facdc 100644
--- a/drivers/ide/pci/cmd64x.c
+++ b/drivers/ide/pci/cmd64x.c
@@ -227,9 +227,8 @@ static u8 cmd64x_tune_pio (ide_drive_t *drive, u8 mode_wanted)
         static const u8 arttim_regs[4] = {ARTTIM0, ARTTIM1, ARTTIM23, ARTTIM23};
         pio_mode = ide_get_best_pio_mode(drive, mode_wanted, 5, &pio);
 
-        cmdprintk("%s: PIO mode wanted %d, selected %d (%d ns)%s\n",
-                  drive->name, mode_wanted, pio_mode, pio.cycle_time,
-                  pio.overridden ? " (overriding vendor mode)" : "");
+        cmdprintk("%s: PIO mode wanted %d, selected %d (%d ns)\n",
+                  drive->name, mode_wanted, pio_mode, pio.cycle_time);
 
         program_cycle_times(drive, pio.cycle_time,
                             ide_pio_timings[pio_mode].active_time);