netdev - Re: arc-elf32-ld: net/xfrm/xfrm_algo.o:(.rodata+0x24): undefined reference to `crypto_has

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Message-ID: <ZRbPBdu0ZJ86juff@hog>
Date: Fri, 29 Sep 2023 15:20:05 +0200
From: Sabrina Dubroca <sd@...asysnail.net>
To: Naresh Kamboju <naresh.kamboju@...aro.org>,
	Herbert Xu <herbert@...dor.apana.org.au>
Cc: Linux-Next Mailing List <linux-next@...r.kernel.org>,
	Netdev <netdev@...r.kernel.org>, linux-snps-arc@...ts.infradead.org,
	Paolo Abeni <pabeni@...hat.com>, Jakub Kicinski <kuba@...nel.org>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>
Subject: Re: arc-elf32-ld: net/xfrm/xfrm_algo.o:(.rodata+0x24): undefined
 reference to `crypto_has_aead'

2023-09-29, 12:41:51 +0530, Naresh Kamboju wrote:
> The arc defconfig builds failed on Linux next from Sept 22.
> 
> Reported-by: Linux Kernel Functional Testing <lkft@...aro.org>
> 
> Build log:
> -----------
> arc-elf32-ld: net/xfrm/xfrm_algo.o:(.rodata+0x24): undefined reference
> to `crypto_has_aead'
> arc-elf32-ld: net/xfrm/xfrm_algo.o:(.rodata+0x24): undefined reference
> to `crypto_has_aead'
> make[3]: *** [/builds/linux/scripts/Makefile.vmlinux:36: vmlinux] Error 1
> make[3]: Target '__default' not remade because of errors.

Use of crypto_has_aead was added to net/xfrm/xfrm_algo.c in commit
a1383e2ab102 ("ipsec: Stop using crypto_has_alg").

I guess the problem is that CONFIG_XFRM_ALGO doesn't select
CONFIG_CRYPTO_AEAD (or _AEAD2?), just CRYPTO_HASH and CRYPTO_SKCIPHER.

Herbert, does that seem reasonable?

-------- 8< --------
diff --git a/net/xfrm/Kconfig b/net/xfrm/Kconfig
index 3adf31a83a79..d7b16f2c23e9 100644
--- a/net/xfrm/Kconfig
+++ b/net/xfrm/Kconfig
@@ -15,6 +15,7 @@ config XFRM_ALGO
 	tristate
 	select XFRM
 	select CRYPTO
+	select CRYPTO_AEAD
 	select CRYPTO_HASH
 	select CRYPTO_SKCIPHER
 

-- 
Sabrina