s390/tape: fix MTIOCGET ioctl to report blocksize

Remove tape_state from status register and report the drive's current
setting for block size instead as known from other tapes.
Density is not supported so nothing to report here.

Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/s390/char/tape_char.c b/drivers/s390/char/tape_char.c
index 6dc60725de92..77f9b9c2f701 100644
--- a/drivers/s390/char/tape_char.c
+++ b/drivers/s390/char/tape_char.c
@@ -402,7 +402,9 @@ __tapechar_ioctl(struct tape_device *device,
                 memset(&get, 0, sizeof(get));
                 get.mt_type = MT_ISUNKNOWN;
                 get.mt_resid = 0 /* device->devstat.rescnt */;
-                get.mt_dsreg = device->tape_state;
+                get.mt_dsreg =
+                        ((device->char_data.block_size << MT_ST_BLKSIZE_SHIFT)
+                         & MT_ST_BLKSIZE_MASK);
                 /* FIXME: mt_gstat, mt_erreg, mt_fileno */
                 get.mt_gstat = 0;
                 get.mt_erreg = 0;