[S390] sclp: Test facility list before executing a service call.

Check if a command is available before executing. Saves some
superfluous service calls that won't succeed anyway.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index 9fcf3f1f47b6..e6289ee74ecd 100644
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -275,6 +275,7 @@ void __init startup_init(void)
         sort_main_extable();
         setup_lowcore_early();
         sclp_readinfo_early();
+        sclp_facilities_detect();
         memsize = sclp_memory_detect();
 #ifndef CONFIG_64BIT
         /*