linux-stable/fs/verity
Ard Biesheuvel e3a606f2c5 fsverity: relax build time dependency on CRYPTO_SHA256
CONFIG_CRYPTO_SHA256 denotes the generic C implementation of the SHA-256
shash algorithm, which is selected as the default crypto shash provider
for fsverity. However, fsverity has no strict link time dependency, and
the same shash could be exposed by an optimized implementation, and arm64
has a number of those (scalar, NEON-based and one based on special crypto
instructions). In such cases, it makes little sense to require that the
generic C implementation is incorporated as well, given that it will never
be called.

To address this, relax the 'select' clause to 'imply' so that the generic
driver can be omitted from the build if desired.

Acked-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2021-04-22 17:31:32 +10:00
..
enable.c fs: add file and path permissions helpers 2021-01-24 14:27:16 +01:00
fsverity_private.h fs-verity: don't pass whole descriptor to fsverity_verify_signature() 2021-02-07 14:51:09 -08:00
hash_algs.c fs-verity: remove filenames from file comments 2020-11-16 11:40:10 -08:00
init.c fs-verity: remove filenames from file comments 2020-11-16 11:40:10 -08:00
Kconfig fsverity: relax build time dependency on CRYPTO_SHA256 2021-04-22 17:31:32 +10:00
Makefile fs-verity: add FS_IOC_READ_VERITY_METADATA ioctl 2021-02-07 14:51:11 -08:00
measure.c fs-verity: rename "file measurement" to "file digest" 2020-11-16 11:40:12 -08:00
open.c fs-verity: don't pass whole descriptor to fsverity_verify_signature() 2021-02-07 14:51:09 -08:00
read_metadata.c fs-verity: support reading signature with ioctl 2021-02-07 14:51:19 -08:00
signature.c fs-verity: don't pass whole descriptor to fsverity_verify_signature() 2021-02-07 14:51:09 -08:00
verify.c fs-verity: remove filenames from file comments 2020-11-16 11:40:10 -08:00