ide: do not access ide_drive_t 'drive_data' field directly

Change ide_drive_t 'drive_data' field from 'unsigned int' type to 'void *'
type, allowing a wider range of values/types to be stored in this field.

Added 'ide_get_drivedata' and 'ide_set_drivedata' helpers to get and set
the 'drive_data' field.

Fixed all host drivers to maintain coherency with the change in the
'drive_data' field type.

Signed-off-by: Joao Ramos <joao.ramos@inov.pt>
[bart: fix qd65xx build, cast to 'unsigned long', minor Coding Style fixups]
Acked-by: Sergei Shtylyov <sshtylyov@ru.montavista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 11 insertions, 1 deletions

diff --git a/include/linux/ide.h b/include/linux/ide.h
index 08c91e21cf47..95c6e00a72e8 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -532,7 +532,7 @@ struct ide_drive_s {
 
         unsigned int    bios_cyl;       /* BIOS/fdisk/LILO number of cyls */
         unsigned int    cyl;            /* "real" number of cyls */
-        unsigned int    drive_data;     /* used by set_pio_mode/dev_select() */
+        void            *drive_data;    /* used by set_pio_mode/dev_select() */
         unsigned int    failures;       /* current failure count */
         unsigned int    max_failures;   /* maximum allowed failure count */
         u64             probed_capacity;/* initial/native media capacity */
@@ -1550,6 +1550,16 @@ static inline ide_drive_t *ide_get_pair_dev(ide_drive_t *drive)
         return (peer->dev_flags & IDE_DFLAG_PRESENT) ? peer : NULL;
 }
 
+static inline void *ide_get_drivedata(ide_drive_t *drive)
+{
+        return drive->drive_data;
+}
+
+static inline void ide_set_drivedata(ide_drive_t *drive, void *data)
+{
+        drive->drive_data = data;
+}
+
 #define ide_port_for_each_dev(i, dev, port) \
         for ((i) = 0; ((dev) = (port)->devices[i]) || (i) < MAX_DRIVES; (i)++)