[PATCH] crypto: lib - remove unneeded selection of XOR_BLOCKS

[Eric Biggers]

From: Eric Biggers <ebiggers@xxxxxxxxxx>

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: e56e18985596 ("lib/crypto: add prompts back to crypto libraries")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Eric Biggers <ebiggers@xxxxxxxxxx>
---

I've separated this fix out from the larger patch
https://lore.kernel.org/r/20220725183636.97326-3-ebiggers@xxxxxxxxxx
that is currently queued in cryptodev.

 lib/crypto/Kconfig | 1 -
 1 file changed, 1 deletion(-)

diff --git a/lib/crypto/Kconfig b/lib/crypto/Kconfig
index 9ff549f63540fa..47816af9a9d7e1 100644
--- a/lib/crypto/Kconfig
+++ b/lib/crypto/Kconfig
@@ -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

base-commit: 4c612826bec1441214816827979b62f84a097e91
-- 
2.37.2