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crypto: lib - remove unneeded selection of XOR_BLOCKS 

commit 874b301985 upstream.

CRYPTO_LIB_CHACHA_GENERIC doesn't need to select XOR_BLOCKS.  It perhaps
was thought that it's needed for __crypto_xor, but that's not the case.

Enabling XOR_BLOCKS is problematic because the XOR_BLOCKS code runs a
benchmark when it is initialized.  That causes a boot time regression on
systems that didn't have it enabled before.

Therefore, remove this unnecessary and problematic selection.

Fixes: e56e189855 ("lib/crypto: add prompts back to crypto libraries")
Cc: stable@vger.kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Eric Biggers 2022-08-25 22:04:56 -07:00 committed by Greg Kroah-Hartman
parent 6db913f5e4
commit 2edbdfc89d
1 changed files with 0 additions and 1 deletions
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lib/crypto/Kconfig
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@ -33,7 +33,6 @@ config CRYPTO_ARCH_HAVE_LIB_CHACHA
config CRYPTO_LIB_CHACHA_GENERIC
tristate
select XOR_BLOCKS
help
This symbol can be depended upon by arch implementations of the
ChaCha library interface that require the generic code as a