diff options
| author |   Ingo Tuchscherer <ingo.tuchscherer@de.ibm.com> | 2015-02-02 17:50:17 +0100 |
|---|---|---|
| committer |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2015-02-04 09:03:19 +0100 |
| commit | ea96f78813823ab186e7e52122c06fb9c3cf6e20 (patch) | |
| tree | acddd2a22fb665f1242736d66ed4b3150a749700 /drivers | |
| parent | s390/smp: increase maximum value of NR_CPUS to 512 (diff) | |
| download | linux-dev-ea96f78813823ab186e7e52122c06fb9c3cf6e20.tar.xz linux-dev-ea96f78813823ab186e7e52122c06fb9c3cf6e20.zip | |
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 <ingo.tuchscherer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/s390/crypto/ap_bus.c | 10 |
1 files 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); } /* |