Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394...

[pandora-kernel.git] / arch / s390 / crypto / crypt_s390.h

diff --git a/arch/s390/crypto/crypt_s390.h b/arch/s390/crypto/crypt_s390.h
index 9992f95..0ef9829 100644 (file)
--- a/arch/s390/crypto/crypt_s390.h
+++ b/arch/s390/crypto/crypt_s390.h
@@ -296,6 +296,10 @@ static inline int crypt_s390_func_available(int func)
        unsigned char status[16];
        int ret;
 
+       /* check if CPACF facility (bit 17) is available */
+       if (!(stfl() & 1ULL << (31 - 17)))
+               return 0;
+
        switch (func & CRYPT_S390_OP_MASK) {
        case CRYPT_S390_KM:
                ret = crypt_s390_km(KM_QUERY, &status, NULL, NULL, 0);