ide: use ->tf_read in ide_read_error()

* Add IDE_TFLAG_IN_FEATURE taskfile flag for reading Feature
  register and handle it in ->tf_read.

* Convert ide_read_error() to use ->tf_read instead of ->INB,
  then uninline and export it.

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

1 files changed, 3 insertions, 7 deletions

diff --git a/include/linux/ide.h b/include/linux/ide.h
index ae93f89e4448..7890768d03ed 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -889,6 +889,7 @@ enum {
         IDE_TFLAG_IN_HOB                = IDE_TFLAG_IN_HOB_FEATURE |
                                           IDE_TFLAG_IN_HOB_NSECT |
                                           IDE_TFLAG_IN_HOB_LBA,
+        IDE_TFLAG_IN_FEATURE            = (1 << 1),
         IDE_TFLAG_IN_NSECT              = (1 << 25),
         IDE_TFLAG_IN_LBAL               = (1 << 26),
         IDE_TFLAG_IN_LBAM               = (1 << 27),
@@ -956,6 +957,8 @@ void ide_tf_dump(const char *, struct ide_taskfile *);
 extern void SELECT_DRIVE(ide_drive_t *);
 void SELECT_MASK(ide_drive_t *, int);
 
+u8 ide_read_error(ide_drive_t *);
+
 extern int drive_is_ready(ide_drive_t *);
 
 void ide_pktcmd_tf_load(ide_drive_t *, u32, u16, u8);
@@ -1357,11 +1360,4 @@ static inline ide_drive_t *ide_get_paired_drive(ide_drive_t *drive)
 
         return &hwif->drives[(drive->dn ^ 1) & 1];
 }
-
-static inline u8 ide_read_error(ide_drive_t *drive)
-{
-        ide_hwif_t *hwif = drive->hwif;
-
-        return hwif->INB(hwif->io_ports.error_addr);
-}
 #endif /* _IDE_H */