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From: Qian Cai <quic_qiancai@quicinc.com>
To: Eric Biggers <ebiggers@kernel.org>
Cc: Herbert Xu <herbert@gondor.apana.org.au>,
	"David S. Miller" <davem@davemloft.net>,
	Ard Biesheuvel <ardb@kernel.org>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>, <linux-crypto@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] arm64/crypto: Select AEAD2 for GHASH_ARM64_CE
Date: Thu, 23 Jun 2022 15:08:32 -0400	[thread overview]
Message-ID: <YrS6MIhv/ze4rbxy@qian> (raw)
In-Reply-To: <YrSgH//ysOd/Qumo@sol.localdomain>

On Thu, Jun 23, 2022 at 10:17:19AM -0700, Eric Biggers wrote:
> On Wed, Jun 22, 2022 at 10:25:57AM -0400, Qian Cai wrote:
> > Otherwise, we could fail to compile.
> > 
> > ld: arch/arm64/crypto/ghash-ce-glue.o: in function 'ghash_ce_mod_exit':
> > ghash-ce-glue.c:(.exit.text+0x24): undefined reference to 'crypto_unregister_aead'
> > ld: arch/arm64/crypto/ghash-ce-glue.o: in function 'ghash_ce_mod_init':
> > ghash-ce-glue.c:(.init.text+0x34): undefined reference to 'crypto_register_aead'
> > 
> > Fixes: 37b6aab68fae ("crypto: arm64/ghash - drop PMULL based shash")
> 
> I don't see how the Fixes commit is related.  Hasn't this been a problem since
> commit 537c1445ab0b, which added an AEAD algorithm to this module?

Ah, you are probably right. crypto_unregister_aead and crypto_register_aead
are already there in the previous commit.

> 
> > diff --git a/arch/arm64/crypto/Kconfig b/arch/arm64/crypto/Kconfig
> > index 4391a463abd7..6b2ecc193bc0 100644
> > --- a/arch/arm64/crypto/Kconfig
> > +++ b/arch/arm64/crypto/Kconfig
> > @@ -71,6 +71,7 @@ config CRYPTO_GHASH_ARM64_CE
> >  	select CRYPTO_HASH
> >  	select CRYPTO_GF128MUL
> >  	select CRYPTO_LIB_AES
> > +	select CRYPTO_AEAD2
> 
> I don't think CRYPTO_AEAD2 is meant to be selected directly.  It should be
> CRYPTO_AEAD instead.

I am not sure about that. I chose CRYPTO_AEAD2 because that is in the
Makefile.

obj-$(CONFIG_CRYPTO_AEAD2) += aead.o

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  reply	other threads:[~2022-06-23 19:09 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-22 14:25 [PATCH] arm64/crypto: Select AEAD2 for GHASH_ARM64_CE Qian Cai
2022-06-23 17:17 ` Eric Biggers
2022-06-23 19:08   ` Qian Cai [this message]
2022-06-24  7:59     ` Herbert Xu

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