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authorEric Biggers <ebiggers@kernel.org>2025-11-22 11:42:05 -0800
committerEric Biggers <ebiggers@kernel.org>2025-11-23 12:19:47 -0800
commitd5cc4e731de7edb1a2b7940d0f0badf9956dddb7 (patch)
tree46f64ef5c6dac0f6729782c01cf8b4c60bb83c22 /include/crypto
parentc2099fa61664e8fe8844cccdb7d1d18a5f0f94d1 (diff)
lib/crypto: sha1: 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 sha1 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/20251122194206.31822-6-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Diffstat (limited to 'include/crypto')
-rw-r--r--include/crypto/sha1.h12
1 files changed, 7 insertions, 5 deletions
diff --git a/include/crypto/sha1.h b/include/crypto/sha1.h
index 162a529ec841..27f08b972931 100644
--- a/include/crypto/sha1.h
+++ b/include/crypto/sha1.h
@@ -84,7 +84,7 @@ void sha1_update(struct sha1_ctx *ctx, const u8 *data, size_t len);
*
* Context: Any context.
*/
-void sha1_final(struct sha1_ctx *ctx, u8 out[SHA1_DIGEST_SIZE]);
+void sha1_final(struct sha1_ctx *ctx, u8 out[at_least SHA1_DIGEST_SIZE]);
/**
* sha1() - Compute SHA-1 message digest in one shot
@@ -94,7 +94,7 @@ void sha1_final(struct sha1_ctx *ctx, u8 out[SHA1_DIGEST_SIZE]);
*
* Context: Any context.
*/
-void sha1(const u8 *data, size_t len, u8 out[SHA1_DIGEST_SIZE]);
+void sha1(const u8 *data, size_t len, u8 out[at_least SHA1_DIGEST_SIZE]);
/**
* struct hmac_sha1_key - Prepared key for HMAC-SHA1
@@ -181,7 +181,8 @@ static inline void hmac_sha1_update(struct hmac_sha1_ctx *ctx,
*
* Context: Any context.
*/
-void hmac_sha1_final(struct hmac_sha1_ctx *ctx, u8 out[SHA1_DIGEST_SIZE]);
+void hmac_sha1_final(struct hmac_sha1_ctx *ctx,
+ u8 out[at_least SHA1_DIGEST_SIZE]);
/**
* hmac_sha1() - Compute HMAC-SHA1 in one shot, using a prepared key
@@ -195,7 +196,8 @@ void hmac_sha1_final(struct hmac_sha1_ctx *ctx, u8 out[SHA1_DIGEST_SIZE]);
* Context: Any context.
*/
void hmac_sha1(const struct hmac_sha1_key *key,
- const u8 *data, size_t data_len, u8 out[SHA1_DIGEST_SIZE]);
+ const u8 *data, size_t data_len,
+ u8 out[at_least SHA1_DIGEST_SIZE]);
/**
* hmac_sha1_usingrawkey() - Compute HMAC-SHA1 in one shot, using a raw key
@@ -212,6 +214,6 @@ void hmac_sha1(const struct hmac_sha1_key *key,
*/
void hmac_sha1_usingrawkey(const u8 *raw_key, size_t raw_key_len,
const u8 *data, size_t data_len,
- u8 out[SHA1_DIGEST_SIZE]);
+ u8 out[at_least SHA1_DIGEST_SIZE]);
#endif /* _CRYPTO_SHA1_H */