diff options
| author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2013-09-20 09:55:40 +0200 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2013-09-23 22:02:24 +0200 |
| commit | a62b01cd6cc1feb5e80d64d6937c291473ed82cb (patch) | |
| tree | dd995ccdf562851b9d947c2ccb18afd6427f9c8e /include | |
| parent | crypto: ansi_cprng - Fix off by one error in non-block size request (diff) | |
| download | linux-a62b01cd6cc1feb5e80d64d6937c291473ed82cb.tar.xz linux-a62b01cd6cc1feb5e80d64d6937c291473ed82cb.zip | |
crypto: create generic version of ablk_helper
Create a generic version of ablk_helper so it can be reused
by other architectures.
Acked-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-generic/simd.h | 14 | ||||
| -rw-r--r-- | include/crypto/ablk_helper.h | 31 |
2 files changed, 45 insertions, 0 deletions
diff --git a/include/asm-generic/simd.h b/include/asm-generic/simd.h new file mode 100644 index 000000000000..f57eb7b5c23b --- /dev/null +++ b/include/asm-generic/simd.h @@ -0,0 +1,14 @@ + +#include <linux/hardirq.h> + +/* + * may_use_simd - whether it is allowable at this time to issue SIMD + * instructions or access the SIMD register file + * + * As architectures typically don't preserve the SIMD register file when + * taking an interrupt, !in_interrupt() should be a reasonable default. + */ +static __must_check inline bool may_use_simd(void) +{ + return !in_interrupt(); +} diff --git a/include/crypto/ablk_helper.h b/include/crypto/ablk_helper.h new file mode 100644 index 000000000000..4f93df50c23e --- /dev/null +++ b/include/crypto/ablk_helper.h @@ -0,0 +1,31 @@ +/* + * Shared async block cipher helpers + */ + +#ifndef _CRYPTO_ABLK_HELPER_H +#define _CRYPTO_ABLK_HELPER_H + +#include <linux/crypto.h> +#include <linux/kernel.h> +#include <crypto/cryptd.h> + +struct async_helper_ctx { + struct cryptd_ablkcipher *cryptd_tfm; +}; + +extern int ablk_set_key(struct crypto_ablkcipher *tfm, const u8 *key, + unsigned int key_len); + +extern int __ablk_encrypt(struct ablkcipher_request *req); + +extern int ablk_encrypt(struct ablkcipher_request *req); + +extern int ablk_decrypt(struct ablkcipher_request *req); + +extern void ablk_exit(struct crypto_tfm *tfm); + +extern int ablk_init_common(struct crypto_tfm *tfm, const char *drv_name); + +extern int ablk_init(struct crypto_tfm *tfm); + +#endif /* _CRYPTO_ABLK_HELPER_H */ |