Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
lib/crypto: chacha: Add at_least decoration to fixed-size array params
Add the at_least (i.e. 'static') decoration to the fixed-size array
parameters of the chacha library functions. This causes clang to warn
when a too-small array of known size is passed.
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Acked-by: "Jason A. Donenfeld" <Jason@zx2c4.com>
Link: https://lore.kernel.org/r/20251122194206.31822-2-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
+6
-6
+6
-6
include/crypto/chacha.h
+6
-6
include/crypto/chacha.h
···
38
38
};
39
39
40
40
void chacha_block_generic(struct chacha_state *state,
41
-
u8 out[CHACHA_BLOCK_SIZE], int nrounds);
41
+
u8 out[at_least CHACHA_BLOCK_SIZE], int nrounds);
42
42
static inline void chacha20_block(struct chacha_state *state,
43
-
u8 out[CHACHA_BLOCK_SIZE])
43
+
u8 out[at_least CHACHA_BLOCK_SIZE])
44
44
{
45
45
chacha_block_generic(state, out, 20);
46
46
}
47
47
48
48
void hchacha_block_generic(const struct chacha_state *state,
49
-
u32 out[HCHACHA_OUT_WORDS], int nrounds);
49
+
u32 out[at_least HCHACHA_OUT_WORDS], int nrounds);
50
50
51
51
void hchacha_block(const struct chacha_state *state,
52
-
u32 out[HCHACHA_OUT_WORDS], int nrounds);
52
+
u32 out[at_least HCHACHA_OUT_WORDS], int nrounds);
53
53
54
54
enum chacha_constants { /* expand 32-byte k */
55
55
CHACHA_CONSTANT_EXPA = 0x61707865U,
···
67
67
}
68
68
69
69
static inline void chacha_init(struct chacha_state *state,
70
-
const u32 key[CHACHA_KEY_WORDS],
71
-
const u8 iv[CHACHA_IV_SIZE])
70
+
const u32 key[at_least CHACHA_KEY_WORDS],
71
+
const u8 iv[at_least CHACHA_IV_SIZE])
72
72
{
73
73
chacha_init_consts(state);
74
74
state->x[4] = key[0];