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-rw-r--r--drivers/s390/cio/css.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c
index a5050e21715..825951b6b83 100644
--- a/drivers/s390/cio/css.c
+++ b/drivers/s390/cio/css.c
@@ -635,7 +635,7 @@ static void css_process_crw(struct crw *crw0, struct crw *crw1, int overflow)
init_subchannel_id(&mchk_schid);
mchk_schid.sch_no = crw0->rsid;
if (crw1)
- mchk_schid.ssid = (crw1->rsid >> 8) & 3;
+ mchk_schid.ssid = (crw1->rsid >> 4) & 3;
/*
* Since we are always presented with IPI in the CRW, we have to