[PATCH 1/4] dm-verity: remove log message with shash driver name

Eric Biggers
2025-10-14T21:17:06Z

I added this log message in commit bbf6a566920e ("dm verity: log the
hash algorithm implementation"), to help people debug issues where they
forgot to enable the architecture-optimized SHA-256 code in their
kconfig or accidentally enabled a slow hardware offload driver (such as
QCE) that overrode the faster CPU-accelerated code. However:

- The crypto layer now always enables the architecture-optimized SHA-1,
SHA-256, and SHA-512 code. Moreover, for simplicity the driver name
is now fixed at "sha1-lib", "sha256-lib", etc.

- dm-verity now uses crypto_shash instead of crypto_ahash, preventing
the mistake of accidentally using a slow driver such as QCE.

Therefore, this log message generally no longer provides useful
information. Remove it.

Signed-off-by: Eric Biggers <ebiggers@kernel.org>
---
drivers/md/dm-verity-target.c | 1 -
1 file changed, 1 deletion(-)

diff --git a/drivers/md/dm-verity-target.c b/drivers/md/dm-verity-target.c
index 66a00a8ccb398..20ddf560d22e3 100644
--- a/drivers/md/dm-verity-target.c
+++ b/drivers/md/dm-verity-target.c
@@ -1250,11 +1250,10 @@ static int verity_setup_hash_alg(struct dm_verity *v, const char *alg_name)
ti->error = "Cannot initialize hash function";
return PTR_ERR(shash);
}
v->shash_tfm = shash;
v->digest_size = crypto_shash_digestsize(shash);
- DMINFO("%s using \"%s\"", alg_name, crypto_shash_driver_name(shash));
if ((1 << v->hash_dev_block_bits) < v->digest_size * 2) {
ti->error = "Digest size too big";
return -EINVAL;
}
return 0;
--
2.51.0