diff options
Diffstat (limited to 'drivers/s390/cio/chsc.c')
| -rw-r--r-- | drivers/s390/cio/chsc.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c index 1aaddea673e0..0689fcf23a11 100644 --- a/drivers/s390/cio/chsc.c +++ b/drivers/s390/cio/chsc.c @@ -695,6 +695,25 @@ out: return ret; } +int chsc_determine_fmt1_channel_path_desc(struct chp_id chpid, + struct channel_path_desc_fmt1 *desc) +{ + struct chsc_response_struct *chsc_resp; + struct chsc_scpd *scpd_area; + int ret; + + spin_lock_irq(&chsc_page_lock); + scpd_area = chsc_page; + ret = chsc_determine_channel_path_desc(chpid, 0, 0, 1, 0, scpd_area); + if (ret) + goto out; + chsc_resp = (void *)&scpd_area->response; + memcpy(desc, &chsc_resp->data, sizeof(*desc)); +out: + spin_unlock_irq(&chsc_page_lock); + return ret; +} + static void chsc_initialize_cmg_chars(struct channel_path *chp, u8 cmcv, struct cmg_chars *chars) |