diff --git a/[refs] b/[refs]
index dc3e0740c58e..96146454db2d 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 3952f17ed63434cc2154c3765ff97e1d4adab042
+refs/heads/master: a72f0dbfd93159acdf2467e5a022b28f763061f6
diff --git a/trunk/arch/s390/crypto/crypt_s390.h b/trunk/arch/s390/crypto/crypt_s390.h
index 9992f95ef992..0ef9829f2ad6 100644
--- a/trunk/arch/s390/crypto/crypt_s390.h
+++ b/trunk/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);