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authorEric Biggers <ebiggers@google.com>2019-06-02 22:47:14 -0700
committerHerbert Xu <herbert@gondor.apana.org.au>2019-06-13 14:31:40 +0800
commit860ab2e50204c41e713c54c752617d2da57f0fd7 (patch)
tree925afd2b64bb253f4963c9b6154ffb3306870824 /arch/x86/crypto
parent76cadf2244518d3b1610082d037b01e2651ea402 (diff)
downloadlinux-860ab2e50204c41e713c54c752617d2da57f0fd7.tar.gz
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 'arch/x86/crypto')
-rw-r--r--arch/x86/crypto/chacha_glue.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/crypto/chacha_glue.c b/arch/x86/crypto/chacha_glue.c
index 4967ad620775..7276b7ef14ec 100644
--- a/arch/x86/crypto/chacha_glue.c
+++ b/arch/x86/crypto/chacha_glue.c
@@ -128,7 +128,7 @@ static void chacha_dosimd(u32 *state, u8 *dst, const u8 *src,
 }
 
 static int chacha_simd_stream_xor(struct skcipher_walk *walk,
-				  struct chacha_ctx *ctx, u8 *iv)
+				  const struct chacha_ctx *ctx, const u8 *iv)
 {
 	u32 *state, state_buf[16 + 2] __aligned(8);
 	int next_yield = 4096; /* bytes until next FPU yield */