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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-07-15 07:44:51 +0200 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-07-15 07:44:51 +0200 |
| commit | 43d2548bb2ef7e6d753f91468a746784041e522d (patch) | |
| tree | 77d13fcd48fd998393abb825ec36e2b732684a73 /arch/s390/crypto/crypt_s390.h | |
| parent | powerpc: Fix pte_update for CONFIG_PTE_64BIT and !PTE_ATOMIC_UPDATES (diff) | |
| parent | Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm (diff) | |
| download | linux-43d2548bb2ef7e6d753f91468a746784041e522d.tar.xz linux-43d2548bb2ef7e6d753f91468a746784041e522d.zip | |
Merge commit '85082fd7cbe3173198aac0eb5e85ab1edcc6352c' into test-build
Manual fixup of:
arch/powerpc/Kconfig
Diffstat (limited to 'arch/s390/crypto/crypt_s390.h')
| -rw-r--r-- | arch/s390/crypto/crypt_s390.h | 4 |
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); |