linux-kernel - Re: sa2ul.c:undefined reference to `crypto_authenc

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Date:   Mon, 7 Sep 2020 14:58:57 +1000
From:   Herbert Xu <herbert@...dor.apana.org.au>
To:     kernel test robot <lkp@...el.com>
Cc:     Keerthy <j-keerthy@...com>, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org, Tero Kristo <t-kristo@...com>,
        Linux Crypto Mailing List <linux-crypto@...r.kernel.org>
Subject: Re: sa2ul.c:undefined reference to `crypto_authenc_extractkeys'

On Mon, Sep 07, 2020 at 11:12:53AM +0800, kernel test robot wrote:
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head:   f4d51dffc6c01a9e94650d95ce0104964f8ae822
> commit: d2c8ac187fc922e73930a1b2f6a211e27f595d01 crypto: sa2ul - Add AEAD algorithm support
> date:   7 weeks ago
> config: x86_64-randconfig-s022-20200907 (attached as .config)
> compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
> reproduce:
>         # apt-get install sparse
>         # sparse version: v0.6.2-191-g10164920-dirty
>         git checkout d2c8ac187fc922e73930a1b2f6a211e27f595d01
>         # save the attached .config to linux build tree
>         make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=x86_64 
> 
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@...el.com>
> 
> All errors (new ones prefixed by >>):
> 
>    ld: drivers/crypto/sa2ul.o: in function `sa_aead_setkey.constprop.0':
> >> sa2ul.c:(.text+0x3466): undefined reference to `crypto_authenc_extractkeys'

Thanks for the report.  This should fix it:

---8<---
The sa2ul driver uses crypto_authenc_extractkeys and therefore
must select CRYPTO_AUTHENC.

Fixes: 7694b6ca649f ("crypto: sa2ul - Add crypto driver")
Reported-by: kernel test robot <lkp@...el.com>
Signed-off-by: Herbert Xu <herbert@...dor.apana.org.au>

diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig
index aa3a4ed07a66..c2950127def6 100644
--- a/drivers/crypto/Kconfig
+++ b/drivers/crypto/Kconfig
@@ -873,6 +873,7 @@ config CRYPTO_DEV_SA2UL
 	select CRYPTO_AES
 	select CRYPTO_AES_ARM64
 	select CRYPTO_ALGAPI
+	select CRYPTO_AUTHENC
 	select HW_RANDOM
 	select SG_SPLIT
 	help
-- 
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