linux-kernel - RE: gcm.c:undefined reference to `crypto_aead

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Date:	Tue, 5 Apr 2016 07:15:21 +0000
From:	"Li, Philip" <philip.li@...el.com>
To:	Herbert Xu <herbert@...dor.apana.org.au>,
	"Wu, Fengguang" <fengguang.wu@...el.com>
CC:	Sabrina Dubroca <sd@...asysnail.net>,
	"kbuild-all@...org" <kbuild-all@...org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Hannes Frederic Sowa <hannes@...essinduktion.org>,
	Linux Crypto Mailing List <linux-crypto@...r.kernel.org>
Subject: RE: gcm.c:undefined reference to `crypto_aead_setauthsize'



> -----Original Message-----
> From: Herbert Xu [mailto:herbert@...dor.apana.org.au]
> Sent: Monday, April 4, 2016 10:00 PM
> To: Wu, Fengguang <fengguang.wu@...el.com>
> Cc: Sabrina Dubroca <sd@...asysnail.net>; kbuild-all@...org;
> linux-kernel@...r.kernel.org; Hannes Frederic Sowa
> <hannes@...essinduktion.org>; Linux Crypto Mailing List
> <linux-crypto@...r.kernel.org>
> Subject: Re: gcm.c:undefined reference to `crypto_aead_setauthsize'
> 
> On Fri, Apr 01, 2016 at 03:02:30PM +0000, kbuild test robot wrote:
> > tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> master
> > head:   6ddf37da05cd71bf9e43349d607e810b43c9008a
> > commit: c09440f7dcb304002dfced8c0fea289eb25f2da0 macsec: introduce
> IEEE 802.1AE driver
> > date:   3 weeks ago
> > config: x86_64-randconfig-s3-04012139 (attached as .config)
> > reproduce:
> >         git checkout c09440f7dcb304002dfced8c0fea289eb25f2da0
> >         # save the attached .config to linux build tree
> >         make ARCH=x86_64
> >
> > All errors (new ones prefixed by >>):
> >
> >    crypto/built-in.o: In function `gcm_enc_copy_hash':
> > >> gcm.c:(.text+0x278): undefined reference to `crypto_xor'
> 
> GCM is y but AEAD is only m, yet GCM selects AEAD.  Perhaps a kbuild bug?
Thanks Herbert, currently we use make randconfig to generate this kconfig file, is it possible this is still a valid settings?

> 
> Cheers,
> --
> 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