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authorLinus Torvalds <torvalds@linux-foundation.org>2008-07-14 13:40:42 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-14 13:40:42 -0700
commit3b23e665b68387f5ee7b21f7b75ceea4d9acae4a (patch)
treef68ddc11e1a3bb068f6d3d16c15da5e91df4dd84 /arch/s390/crypto
parent6c118e43dc513a7118b49b9ff953fe61e14515dc (diff)
parent090657e423f45a77151943f50165ae9565bfbf33 (diff)
downloadlinux-linaro-stable-3b23e665b68387f5ee7b21f7b75ceea4d9acae4a.tar.gz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (50 commits) crypto: ixp4xx - Select CRYPTO_AUTHENC crypto: s390 - Respect STFL bit crypto: talitos - Add support for sha256 and md5 variants crypto: hash - Move ahash functions into crypto/hash.h crypto: crc32c - Add ahash implementation crypto: hash - Added scatter list walking helper crypto: prng - Deterministic CPRNG crypto: hash - Removed vestigial ahash fields crypto: hash - Fixed digest size check crypto: rmd - sparse annotations crypto: rmd128 - sparse annotations crypto: camellia - Use kernel-provided bitops, unaligned access helpers crypto: talitos - Use proper form for algorithm driver names crypto: talitos - Add support for 3des crypto: padlock - Make module loading quieter when hardware isn't available crypto: tcrpyt - Remove unnecessary kmap/kunmap calls crypto: ixp4xx - Hardware crypto support for IXP4xx CPUs crypto: talitos - Freescale integrated security engine (SEC) driver [CRYPTO] tcrypt: Add self test for des3_ebe cipher operating in cbc mode [CRYPTO] rmd: Use pointer form of endian swapping operations ...
Diffstat (limited to 'arch/s390/crypto')
-rw-r--r--arch/s390/crypto/crypt_s390.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/s390/crypto/crypt_s390.h b/arch/s390/crypto/crypt_s390.h
index 9992f95ef992..0ef9829f2ad6 100644
--- 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);