diff options
| author | Sebastian Ott <sebott@linux.vnet.ibm.com> | 2016-01-25 10:31:33 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2016-01-26 12:47:41 +0100 |
| commit | 61f0bfcf8020f02eb09adaef96745d1c1d1b3623 (patch) | |
| tree | f5e6630a4281f738b2d371f87fad6eb8cb682bfc /drivers/s390/cio/chp.c | |
| parent | 0d9bfe9123cfde59bf5c2e375b59d2a7d5061c4c (diff) | |
| download | linux-61f0bfcf8020f02eb09adaef96745d1c1d1b3623.tar.bz2 | |
s390/cio: ensure consistent measurement state
Make sure that in all cases where we could not obtain measurement
characteristics the associated fields are set to invalid values.
Note: without this change the "shared" capability of a channel path
for which we could not obtain the measurement characteristics was
incorrectly displayed as 0 (not shared). We will now correctly
report "unknown" in this case.
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Reviewed-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/cio/chp.c')
| -rw-r--r-- | drivers/s390/cio/chp.c | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/drivers/s390/cio/chp.c b/drivers/s390/cio/chp.c index 3d2b6c48c18e..8504629cbf72 100644 --- a/drivers/s390/cio/chp.c +++ b/drivers/s390/cio/chp.c @@ -466,14 +466,11 @@ int chp_new(struct chp_id chpid) ret = -ENODEV; goto out_free; } - /* Get channel-measurement characteristics. */ - if (css_chsc_characteristics.scmc && css_chsc_characteristics.secm) { - ret = chsc_get_channel_measurement_chars(chp); - if (ret) - goto out_free; - } else { - chp->cmg = -1; - } + + ret = chsc_get_channel_measurement_chars(chp); + if (ret) + goto out_free; + dev_set_name(&chp->dev, "chp%x.%02x", chpid.cssid, chpid.id); /* make it known to the system */ |