linux-kernel - Re: [PATCH v24 01/12] Linux Random Number Generator

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Date:   Wed, 13 Nov 2019 06:30:29 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Stephan Müller <smueller@...onox.de>
Cc:     kbuild-all@...ts.01.org, Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-crypto@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
        linux-api@...r.kernel.org,
        "Eric W. Biederman" <ebiederm@...ssion.com>,
        "Alexander E. Patrakov" <patrakov@...il.com>,
        "Ahmed S. Darwish" <darwish.07@...il.com>,
        "Theodore Y. Ts'o" <tytso@....edu>, Willy Tarreau <w@....eu>,
        Matthew Garrett <mjg59@...f.ucam.org>,
        Vito Caputo <vcaputo@...garu.com>,
        Andreas Dilger <adilger.kernel@...ger.ca>,
        Jan Kara <jack@...e.cz>, Ray Strode <rstrode@...hat.com>,
        William Jon McCann <mccann@....edu>,
        zhangjs <zachary@...shancloud.com>,
        Andy Lutomirski <luto@...nel.org>,
        Florian Weimer <fweimer@...hat.com>,
        Lennart Poettering <mzxreary@...inter.de>,
        Nicolai Stange <nstange@...e.de>,
        "Peter, Matthias" <matthias.peter@....bund.de>,
        Marcelo Henrique Cerri <marcelo.cerri@...onical.com>,
        Roman Drahtmueller <draht@...altsekun.de>,
        Neil Horman <nhorman@...hat.com>
Subject: Re: [PATCH v24 01/12] Linux Random Number Generator

Hi "Stephan,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on char-misc/char-misc-testing]
[also build test ERROR on v5.4-rc7 next-20191112]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Stephan-M-ller/dev-random-a-new-approach-with-full-SP800-90B-compliance/20191113-040847
base:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git 01b59c763fe2de845b65900485b141fdd7bbf93e
config: i386-randconfig-f003-201945 (attached as .config)
compiler: gcc-7 (Debian 7.4.0-14) 7.4.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

   In file included from <command-line>:0:0:
   include/linux/lrng.h: In function 'lrng_set_drng_cb':
>> include/linux/lrng.h:80:61: error: 'EOPNOTSUPP' undeclared (first use in this function)
    lrng_set_drng_cb(const struct lrng_crypto_cb *cb) { return -EOPNOTSUPP; }
                                                                ^~~~~~~~~~
   include/linux/lrng.h:80:61: note: each undeclared identifier is reported only once for each function it appears in

vim +/EOPNOTSUPP +80 include/linux/lrng.h

    74	
    75	/* Register cryptographic backend */
    76	#ifdef CONFIG_LRNG_DRNG_SWITCH
    77	int lrng_set_drng_cb(const struct lrng_crypto_cb *cb);
    78	#else	/* CONFIG_LRNG_DRNG_SWITCH */
    79	static inline int
  > 80	lrng_set_drng_cb(const struct lrng_crypto_cb *cb) { return -EOPNOTSUPP; }
    81	#endif	/* CONFIG_LRNG_DRNG_SWITCH */
    82	

---
0-DAY kernel test infrastructure                 Open Source Technology Center
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