From ea96f78813823ab186e7e52122c06fb9c3cf6e20 Mon Sep 17 00:00:00 2001 From: Ingo Tuchscherer Date: Mon, 2 Feb 2015 17:50:17 +0100 Subject: [PATCH] s390/zcrypt: fixed domain scanning problem (again) Older machines with more then 16 domains need a special check before PQAP instructions can be processed. With commit 5bc334bff9a6e189 this check was reverted by accident. This patch re-establishes the additional code needed for checking the extended domains for older machines. Signed-off-by: Ingo Tuchscherer Signed-off-by: Martin Schwidefsky --- drivers/s390/crypto/ap_bus.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c index a60fc2f9f4b2..3d7f19fb9a4e 100644 --- a/drivers/s390/crypto/ap_bus.c +++ b/drivers/s390/crypto/ap_bus.c @@ -1060,9 +1060,13 @@ static inline int ap_test_config_card_id(unsigned int id) */ static inline int ap_test_config_domain(unsigned int domain) { - if (!ap_configuration) - return 1; - return ap_test_config(ap_configuration->aqm, domain); + if (!ap_configuration) /* QCI not supported */ + if (domain < 16) + return 1; /* then domains 0...15 are configured */ + else + return 0; + else + return ap_test_config(ap_configuration->aqm, domain); } /* -- 2.20.1