[S390] cleanup facility list handling
Store the facility list once at system startup with stfl/stfle and
reuse the result for all facility tests.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c
index 91c6028..8fd8c62 100644
--- a/drivers/s390/crypto/ap_bus.c
+++ b/drivers/s390/crypto/ap_bus.c
@@ -154,14 +154,7 @@
*/
static int ap_interrupts_available(void)
{
- unsigned long long facility_bits[2];
-
- if (stfle(facility_bits, 2) <= 1)
- return 0;
- if (!(facility_bits[0] & (1ULL << 61)) ||
- !(facility_bits[1] & (1ULL << 62)))
- return 0;
- return 1;
+ return test_facility(1) && test_facility(2);
}
/**