linux-kernel - Re: [PATCH] crypto: lib/Kconfig - fix chacha/poly1305 dependencies more more

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Message-ID: <Z75xKexTUNm_FnSK@gondor.apana.org.au>
Date: Wed, 26 Feb 2025 09:40:57 +0800
From: Herbert Xu <herbert@...dor.apana.org.au>
To: Arnd Bergmann <arnd@...nel.org>
Cc: Arnd Bergmann <arnd@...db.de>, Will Deacon <will@...nel.org>,
	"David S . Miller" <davem@...emloft.net>,
	Catalin Marinas <catalin.marinas@....com>,
	Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
	Harald Freudenberger <freude@...ux.ibm.com>,
	Holger Dengler <dengler@...ux.ibm.com>,
	Heiko Carstens <hca@...ux.ibm.com>,
	Vasily Gorbik <gor@...ux.ibm.com>,
	Alexander Gordeev <agordeev@...ux.ibm.com>,
	Christian Borntraeger <borntraeger@...ux.ibm.com>,
	Sven Schnelle <svens@...ux.ibm.com>,
	"Martin K. Petersen" <martin.petersen@...cle.com>,
	Ard Biesheuvel <ardb@...nel.org>,
	Eric Biggers <ebiggers@...gle.com>,
	"James E . J . Bottomley" <James.Bottomley@...senpartnership.com>,
	Jarkko Sakkinen <jarkko@...nel.org>, linux-crypto@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linux-mips@...r.kernel.org, linux-s390@...r.kernel.org
Subject: Re: [PATCH] crypto: lib/Kconfig - fix chacha/poly1305 dependencies
 more more

On Tue, Feb 25, 2025 at 10:50:10PM +0100, Arnd Bergmann wrote:
>
> After looking at the original 0day report, I think the fix for
> that problem would have been
> 
> --- a/drivers/net/Kconfig
> +++ b/drivers/net/Kconfig
> @@ -94,6 +94,7 @@ config WIREGUARD
>         select CRYPTO_CHACHA_MIPS if CPU_MIPS32_R2
>         select CRYPTO_POLY1305_MIPS if MIPS
>         select CRYPTO_CHACHA_S390 if S390
> +       select CRYPTO_CURVE25519_PPC64 if PPC64 && CPU_LITTLE_ENDIAN
>         help
>           WireGuard is a secure, fast, and easy to use replacement for IPSec
>           that uses modern cryptography and clever networking tricks. It's

Thanks.  I wasn't aware wireguard was doing this.

Let me see if I can replicate this select matrix in lib/crypto
instead.

Thanks,
-- 
Email: Herbert Xu <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt