This is a note to let you know that I've just added the patch titled
crypto: lib - remove unneeded selection of XOR_BLOCKS
to the 5.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
crypto-lib-remove-unneeded-selection-of-xor_blocks.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 874b301985ef2f89b8b592ad255e03fb6fbfe605 Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@xxxxxxxxxx>
Date: Thu, 25 Aug 2022 22:04:56 -0700
Subject: crypto: lib - remove unneeded selection of XOR_BLOCKS
From: Eric Biggers <ebiggers@xxxxxxxxxx>
commit 874b301985ef2f89b8b592ad255e03fb6fbfe605 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: e56e18985596 ("lib/crypto: add prompts back to crypto libraries")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Eric Biggers <ebiggers@xxxxxxxxxx>
Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
lib/crypto/Kconfig | 1 -
1 file changed, 1 deletion(-)
--- 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
Patches currently in stable-queue which might be from ebiggers@xxxxxxxxxx are
queue-5.10/crypto-lib-remove-unneeded-selection-of-xor_blocks.patch
