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-rw-r--r--fs/verity/Kconfig8
1 files changed, 6 insertions, 2 deletions
diff --git a/fs/verity/Kconfig b/fs/verity/Kconfig
index 88fb25119899..24d1b54de807 100644
--- a/fs/verity/Kconfig
+++ b/fs/verity/Kconfig
@@ -3,9 +3,13 @@
config FS_VERITY
bool "FS Verity (read-only file-based authenticity protection)"
select CRYPTO
- # SHA-256 is selected as it's intended to be the default hash algorithm.
+ # SHA-256 is implied as it's intended to be the default hash algorithm.
# To avoid bloat, other wanted algorithms must be selected explicitly.
- select CRYPTO_SHA256
+ # Note that CRYPTO_SHA256 denotes the generic C implementation, but
+ # some architectures provided optimized implementations of the same
+ # algorithm that may be used instead. In this case, CRYPTO_SHA256 may
+ # be omitted even if SHA-256 is being used.
+ imply CRYPTO_SHA256
help
This option enables fs-verity. fs-verity is the dm-verity
mechanism implemented at the file level. On supported