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| author | Eric Biggers <ebiggers@google.com> | 2019-06-02 22:47:14 -0700 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2019-06-13 14:31:40 +0800 |
| commit | 860ab2e50204c41e713c54c752617d2da57f0fd7 (patch) | |
| tree | 925afd2b64bb253f4963c9b6154ffb3306870824 /crypto/chacha_generic.c | |
| parent | 76cadf2244518d3b1610082d037b01e2651ea402 (diff) | |
| download | linux-riscv-860ab2e50204c41e713c54c752617d2da57f0fd7.tar.gz linux-riscv-860ab2e50204c41e713c54c752617d2da57f0fd7.tar.bz2 linux-riscv-860ab2e50204c41e713c54c752617d2da57f0fd7.zip | |
crypto: chacha - constify ctx and iv arguments
Constify the ctx and iv arguments to crypto_chacha_init() and the
various chacha*_stream_xor() functions. This makes it clear that they
are not modified.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/chacha_generic.c')
| -rw-r--r-- | crypto/chacha_generic.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/crypto/chacha_generic.c b/crypto/chacha_generic.c index d2ec04997832..d283bd3bdb60 100644 --- a/crypto/chacha_generic.c +++ b/crypto/chacha_generic.c @@ -36,7 +36,7 @@ static void chacha_docrypt(u32 *state, u8 *dst, const u8 *src, } static int chacha_stream_xor(struct skcipher_request *req, - struct chacha_ctx *ctx, u8 *iv) + const struct chacha_ctx *ctx, const u8 *iv) { struct skcipher_walk walk; u32 state[16]; @@ -60,7 +60,7 @@ static int chacha_stream_xor(struct skcipher_request *req, return err; } -void crypto_chacha_init(u32 *state, struct chacha_ctx *ctx, u8 *iv) +void crypto_chacha_init(u32 *state, const struct chacha_ctx *ctx, const u8 *iv) { state[0] = 0x61707865; /* "expa" */ state[1] = 0x3320646e; /* "nd 3" */ |