ide: add ide_atapi_{discard_data,write_zeros} inline helpers

Add ide_atapi_{discard_data,write_zeros} inline helpers to <linux/ide.h>
and use them instead of home-brewn helpers in ide-{floppy,tape,scsi}.

There should be no functional changes caused by this patch.

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

1 files changed, 2 insertions, 12 deletions

diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index 0598ecfd5f37..bfdc4f449797 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -518,16 +518,6 @@ static struct ide_tape_obj *ide_tape_chrdev_get(unsigned int i)
         return tape;
 }
 
-/*
- * Too bad. The drive wants to send us data which we are not ready to accept.
- * Just throw it away.
- */
-static void idetape_discard_data(ide_drive_t *drive, unsigned int bcount)
-{
-        while (bcount--)
-                (void) HWIF(drive)->INB(IDE_DATA_REG);
-}
-
 static void idetape_input_buffers(ide_drive_t *drive, idetape_pc_t *pc,
                                   unsigned int bcount)
 {
@@ -538,7 +528,7 @@ static void idetape_input_buffers(ide_drive_t *drive, idetape_pc_t *pc,
                 if (bh == NULL) {
                         printk(KERN_ERR "ide-tape: bh == NULL in "
                                 "idetape_input_buffers\n");
-                        idetape_discard_data(drive, bcount);
+                        ide_atapi_discard_data(drive, bcount);
                         return;
                 }
                 count = min(
@@ -1152,7 +1142,7 @@ static ide_startstop_t idetape_pc_intr(ide_drive_t *drive)
                                 printk(KERN_ERR "ide-tape: The tape wants to "
                                         "send us more data than expected "
                                         "- discarding data\n");
-                                idetape_discard_data(drive, bcount);
+                                ide_atapi_discard_data(drive, bcount);
                                 ide_set_handler(drive, &idetape_pc_intr,
                                                 IDETAPE_WAIT_CMD, NULL);
                                 return ide_started;