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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2025-08-11 07:44:00 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2025-08-22 12:28:44 +0300 |
| commit | 11d5674fc2e5e75ccaa13685a909c14e033544b7 (patch) | |
| tree | f2fce8fe887e3a6a2451d4e976332bc97994dd56 /include | |
| parent | 34c065fe1d0dbb08073d83559d3173bb4f17dcc5 (diff) | |
| download | linux-11d5674fc2e5e75ccaa13685a909c14e033544b7.tar.xz | |
crypto: hash - Make HASH_MAX_DESCSIZE a bit more obvious
Move S390_SHA_CTX_SIZE into crypto/hash.h so that the derivation
of HASH_MAX_DESCSIZE is less cryptic.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'include')
| -rw-r--r-- | include/crypto/hash.h | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/include/crypto/hash.h b/include/crypto/hash.h index bbaeae705ef0..586700332c73 100644 --- a/include/crypto/hash.h +++ b/include/crypto/hash.h @@ -177,14 +177,26 @@ struct shash_desc { #define HASH_MAX_DIGESTSIZE 64 +/* + * The size of a core hash state and a partial block. The final byte + * is the length of the partial block. + */ +#define HASH_STATE_AND_BLOCK(state, block) ((state) + (block) + 1) + + /* Worst case is sha3-224. */ -#define HASH_MAX_STATESIZE 200 + 144 + 1 +#define HASH_MAX_STATESIZE HASH_STATE_AND_BLOCK(200, 144) + +/* This needs to match arch/s390/crypto/sha.h. */ +#define S390_SHA_CTX_SIZE 216 /* * Worst case is hmac(sha3-224-s390). Its context is a nested 'shash_desc' * containing a 'struct s390_sha_ctx'. */ -#define HASH_MAX_DESCSIZE (sizeof(struct shash_desc) + 361) +#define SHA3_224_S390_DESCSIZE HASH_STATE_AND_BLOCK(S390_SHA_CTX_SIZE, 144) +#define HASH_MAX_DESCSIZE (sizeof(struct shash_desc) + \ + SHA3_224_S390_DESCSIZE) #define MAX_SYNC_HASH_REQSIZE (sizeof(struct ahash_request) + \ HASH_MAX_DESCSIZE) |