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dm-verity: allow REED_SOLOMON to be 'm' if DM_VERITY is 'm'

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The dm-verity kconfig options make the common mistake of selecting a
dependency from a bool "sub-option" rather than the main tristate
option.  This unnecessarily forces the dependency to built-in ('y').

Fix this by moving the selections of REED_SOLOMON and REED_SOLOMON_DEC8
into DM_VERITY, conditional on DM_VERITY_FEC.

This allows REED_SOLOMON to be 'm' if DM_VERITY is 'm'.

Reviewed-by: Sami Tolvanen <samitolvanen@google.com>
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
This commit is contained in:
Eric Biggers 2025-12-19 11:29:09 -08:00 • committed by Mikulas Patocka
parent 119f4f0418
commit 8fbb8fe75d
1 changed files with 2 additions and 2 deletions
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4
drivers/md/Kconfig
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@ -549,6 +549,8 @@ config DM_VERITY
select CRYPTO_HASH
select CRYPTO_LIB_SHA256
select DM_BUFIO
select REED_SOLOMON if DM_VERITY_FEC
select REED_SOLOMON_DEC8 if DM_VERITY_FEC
help
This device-mapper target creates a read-only device that
transparently validates the data on one underlying device against
@ -598,8 +600,6 @@ config DM_VERITY_VERIFY_ROOTHASH_SIG_PLATFORM_KEYRING
config DM_VERITY_FEC
bool "Verity forward error correction support"
depends on DM_VERITY
select REED_SOLOMON
select REED_SOLOMON_DEC8
help
Add forward error correction support to dm-verity. This option
makes it possible to use pre-generated error correction data to