crypto: lib/chacha - add array bounds to function prototypes

Add explicit array bounds to the function prototypes for the parameters
that didn't already get handled by the conversion to use chacha_state:

- chacha_block_*():
  Change 'u8 *out' or 'u8 *stream' to u8 out[CHACHA_BLOCK_SIZE].

- hchacha_block_*():
  Change 'u32 *out' or 'u32 *stream' to u32 out[HCHACHA_OUT_WORDS].

- chacha_init():
  Change 'const u32 *key' to 'const u32 key[CHACHA_KEY_WORDS]'.
  Change 'const u8 *iv' to 'const u8 iv[CHACHA_IV_SIZE]'.

No functional changes.  This just makes it clear when fixed-size arrays
are expected.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 4 insertions, 4 deletions

diff --git a/arch/x86/lib/crypto/chacha_glue.c b/arch/x86/lib/crypto/chacha_glue.c
index 6f00a56e3e9a..10b2c945f541 100644
--- a/arch/x86/lib/crypto/chacha_glue.c
+++ b/arch/x86/lib/crypto/chacha_glue.c
@@ -19,7 +19,7 @@ asmlinkage void chacha_4block_xor_ssse3(const struct chacha_state *state,
 					u8 *dst, const u8 *src,
 					unsigned int len, int nrounds);
 asmlinkage void hchacha_block_ssse3(const struct chacha_state *state,
-				    u32 *out, int nrounds);
+				    u32 out[HCHACHA_OUT_WORDS], int nrounds);
 
 asmlinkage void chacha_2block_xor_avx2(const struct chacha_state *state,
 				       u8 *dst, const u8 *src,
@@ -127,13 +127,13 @@ static void chacha_dosimd(struct chacha_state *state, u8 *dst, const u8 *src,
 }
 
 void hchacha_block_arch(const struct chacha_state *state,
-			u32 *stream, int nrounds)
+			u32 out[HCHACHA_OUT_WORDS], int nrounds)
 {
 	if (!static_branch_likely(&chacha_use_simd)) {
-		hchacha_block_generic(state, stream, nrounds);
+		hchacha_block_generic(state, out, nrounds);
 	} else {
 		kernel_fpu_begin();
-		hchacha_block_ssse3(state, stream, nrounds);
+		hchacha_block_ssse3(state, out, nrounds);
 		kernel_fpu_end();
 	}
 }