diff options
| -rw-r--r-- | drivers/s390/cio/device.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c index 6d714cf55064..23d5752349b5 100644 --- a/drivers/s390/cio/device.c +++ b/drivers/s390/cio/device.c @@ -1174,7 +1174,8 @@ void io_subchannel_init_config(struct subchannel *sch) { memset(&sch->config, 0, sizeof(sch->config)); sch->config.csense = 1; - if ((sch->lpm & (sch->lpm - 1)) != 0) + /* Use subchannel mp mode when there is more than 1 installed CHPID. */ + if ((sch->schib.pmcw.pim & (sch->schib.pmcw.pim - 1)) != 0) sch->config.mp = 1; } |