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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2025-05-04 21:33:23 +0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2025-05-05 18:20:46 +0800 |
| commit | 88bca957e87e9a8a274213db257a744170b7248a (patch) | |
| tree | bf48cb5c060218d46a38ee60fa8babcd8c7aaa69 /include/crypto/internal | |
| parent | 1052671ca118b79fa3f5de281bba850aaf20bbf5 (diff) | |
crypto: ahash - Add HASH_REQUEST_ZERO
Add a helper to zero hash stack requests that were never cloned
off the stack.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'include/crypto/internal')
| -rw-r--r-- | include/crypto/internal/hash.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/crypto/internal/hash.h b/include/crypto/internal/hash.h index e911f32f46dc..f2bbdb74e11a 100644 --- a/include/crypto/internal/hash.h +++ b/include/crypto/internal/hash.h @@ -301,5 +301,9 @@ static inline unsigned int crypto_shash_coresize(struct crypto_shash *tfm) return crypto_shash_statesize(tfm) - crypto_shash_blocksize(tfm) - 1; } +/* This can only be used if the request was never cloned. */ +#define HASH_REQUEST_ZERO(name) \ + memzero_explicit(__##name##_req, sizeof(__##name##_req)) + #endif /* _CRYPTO_INTERNAL_HASH_H */ |