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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2010-10-25 16:10:51 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> | 2010-10-25 16:10:21 +0200 |
| commit | 14375bc4eb8dd0fb0e765390650564c35bb31068 (patch) | |
| tree | 27200620658245c582ee9497fc969a082b304cab /drivers/s390/crypto/ap_bus.c | |
| parent | eca577ef5989d25dedc6b0fae3c4622ceaee8005 (diff) | |
| download | blackbird-op-linux-14375bc4eb8dd0fb0e765390650564c35bb31068.tar.gz blackbird-op-linux-14375bc4eb8dd0fb0e765390650564c35bb31068.zip | |
[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>
Diffstat (limited to 'drivers/s390/crypto/ap_bus.c')
| -rw-r--r-- | drivers/s390/crypto/ap_bus.c | 9 |
1 files changed, 1 insertions, 8 deletions
diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c index 91c6028d7b74..8fd8c62455e9 100644 --- a/drivers/s390/crypto/ap_bus.c +++ b/drivers/s390/crypto/ap_bus.c @@ -154,14 +154,7 @@ static inline int ap_instructions_available(void) */ 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); } /** |
