diff options
Diffstat (limited to 'lib/crypto/chacha.c')
| -rw-r--r-- | lib/crypto/chacha.c | 41 |
1 files changed, 38 insertions, 3 deletions
diff --git a/lib/crypto/chacha.c b/lib/crypto/chacha.c index 26862ad90a96..e0c7cb4af318 100644 --- a/lib/crypto/chacha.c +++ b/lib/crypto/chacha.c @@ -11,8 +11,9 @@ #include <linux/kernel.h> #include <linux/module.h> -void chacha_crypt_generic(struct chacha_state *state, u8 *dst, const u8 *src, - unsigned int bytes, int nrounds) +static void __maybe_unused +chacha_crypt_generic(struct chacha_state *state, u8 *dst, const u8 *src, + unsigned int bytes, int nrounds) { /* aligned to potentially speed up crypto_xor() */ u8 stream[CHACHA_BLOCK_SIZE] __aligned(sizeof(long)); @@ -29,7 +30,41 @@ void chacha_crypt_generic(struct chacha_state *state, u8 *dst, const u8 *src, crypto_xor_cpy(dst, src, stream, bytes); } } -EXPORT_SYMBOL(chacha_crypt_generic); + +#ifdef CONFIG_CRYPTO_LIB_CHACHA_ARCH +#include "chacha.h" /* $(SRCARCH)/chacha.h */ +#else +#define chacha_crypt_arch chacha_crypt_generic +#define hchacha_block_arch hchacha_block_generic +#endif + +void chacha_crypt(struct chacha_state *state, u8 *dst, const u8 *src, + unsigned int bytes, int nrounds) +{ + chacha_crypt_arch(state, dst, src, bytes, nrounds); +} +EXPORT_SYMBOL_GPL(chacha_crypt); + +void hchacha_block(const struct chacha_state *state, + u32 out[HCHACHA_OUT_WORDS], int nrounds) +{ + hchacha_block_arch(state, out, nrounds); +} +EXPORT_SYMBOL_GPL(hchacha_block); + +#ifdef chacha_mod_init_arch +static int __init chacha_mod_init(void) +{ + chacha_mod_init_arch(); + return 0; +} +subsys_initcall(chacha_mod_init); + +static void __exit chacha_mod_exit(void) +{ +} +module_exit(chacha_mod_exit); +#endif MODULE_DESCRIPTION("ChaCha stream cipher (RFC7539)"); MODULE_LICENSE("GPL"); |