This is a note to let you know that I've just added the patch titled crypto: ecc - fix CRYPTO_DEFAULT_RNG dependency to the 5.4-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-ecc-fix-crypto_default_rng-dependency.patch and it can be found in the queue-5.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 5755adfd7f479efb67eeb663ae4543f26d11238a Author: Arnd Bergmann <arnd@xxxxxxxx> Date: Mon Sep 20 12:05:35 2021 +0200 crypto: ecc - fix CRYPTO_DEFAULT_RNG dependency [ Upstream commit 38aa192a05f22f9778f9420e630f0322525ef12e ] The ecc.c file started out as part of the ECDH algorithm but got moved out into a standalone module later. It does not build without CRYPTO_DEFAULT_RNG, so now that other modules are using it as well we can run into this link error: aarch64-linux-ld: ecc.c:(.text+0xfc8): undefined reference to `crypto_default_rng' aarch64-linux-ld: ecc.c:(.text+0xff4): undefined reference to `crypto_put_default_rng' Move the 'select CRYPTO_DEFAULT_RNG' statement into the correct symbol. Fixes: 0d7a78643f69 ("crypto: ecrdsa - add EC-RDSA (GOST 34.10) algorithm") Fixes: 4e6602916bc6 ("crypto: ecdsa - Add support for ECDSA signature verification") Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> Reviewed-by: Stefan Berger <stefanb@xxxxxxxxxxxxx> Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/crypto/Kconfig b/crypto/Kconfig index b2cc0ad3792ad..ce60ec30e78df 100644 --- a/crypto/Kconfig +++ b/crypto/Kconfig @@ -242,12 +242,12 @@ config CRYPTO_DH config CRYPTO_ECC tristate + select CRYPTO_RNG_DEFAULT config CRYPTO_ECDH tristate "ECDH algorithm" select CRYPTO_ECC select CRYPTO_KPP - select CRYPTO_RNG_DEFAULT help Generic implementation of the ECDH algorithm