From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6BF61C33C9E for ; Sat, 11 Jan 2020 07:10:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3A1462084D for ; Sat, 11 Jan 2020 07:10:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728492AbgAKHKE (ORCPT ); Sat, 11 Jan 2020 02:10:04 -0500 Received: from mga11.intel.com ([192.55.52.93]:63524 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728471AbgAKHKE (ORCPT ); Sat, 11 Jan 2020 02:10:04 -0500 X-Amp-Result: UNKNOWN X-Amp-Original-Verdict: FILE UNKNOWN X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga102.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 10 Jan 2020 23:10:03 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.69,420,1571727600"; d="scan'208";a="234105863" Received: from lkp-server01.sh.intel.com (HELO lkp-server01) ([10.239.97.150]) by fmsmga001.fm.intel.com with ESMTP; 10 Jan 2020 23:09:59 -0800 Received: from kbuild by lkp-server01 with local (Exim 4.89) (envelope-from ) id 1iqAuE-0009Dn-T5; Sat, 11 Jan 2020 15:09:58 +0800 Date: Sat, 11 Jan 2020 15:09:50 +0800 From: kbuild test robot To: Stephan =?iso-8859-1?Q?M=FCller?= Cc: kbuild-all@lists.01.org, Arnd Bergmann , Greg Kroah-Hartman , linux-crypto@vger.kernel.org, LKML , linux-api@vger.kernel.org, "Eric W. Biederman" , "Alexander E. Patrakov" , "Ahmed S. Darwish" , "Theodore Y. Ts'o" , Willy Tarreau , Matthew Garrett , Vito Caputo , Andreas Dilger , Jan Kara , Ray Strode , William Jon McCann , zhangjs , Andy Lutomirski , Florian Weimer , Lennart Poettering , Nicolai Stange , "Peter, Matthias" , Marcelo Henrique Cerri , Roman Drahtmueller , Neil Horman , Randy Dunlap , Julia Lawall Subject: Re: [PATCH v27 04/12] LRNG - add switchable DRNG support Message-ID: <202001111540.5y2emdGQ%lkp@intel.com> References: <5087131.2PHHu6SUIE@positron.chronox.de> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <5087131.2PHHu6SUIE@positron.chronox.de> User-Agent: NeoMutt/20170113 (1.7.2) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi "Stephan, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on char-misc/char-misc-testing] [also build test WARNING on cryptodev/master crypto/master v5.5-rc5 next-20200110] [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/20200110-084934 base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git 68faa679b8be1a74e6663c21c3a9d25d32f1c079 reproduce: # apt-get install sparse # sparse version: v0.6.1-129-g341daf20-dirty make ARCH=x86_64 allmodconfig make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' If you fix the issue, kindly add following tag Reported-by: kbuild test robot sparse warnings: (new ones prefixed by >>) >> drivers/char/lrng/lrng_internal.h:239:39: sparse: sparse: context imbalance in 'lrng_drng_switch' - unexpected unlock vim +/lrng_drng_switch +239 drivers/char/lrng/lrng_internal.h 58c283819a1e87 Stephan Müller 2020-01-09 233 58c283819a1e87 Stephan Müller 2020-01-09 234 /* Unlock the DRNG */ 58c283819a1e87 Stephan Müller 2020-01-09 235 static __always_inline void lrng_drng_unlock(struct lrng_drng *drng, 58c283819a1e87 Stephan Müller 2020-01-09 236 unsigned long *flags) 58c283819a1e87 Stephan Müller 2020-01-09 237 { 58c283819a1e87 Stephan Müller 2020-01-09 238 if (lrng_drng_is_atomic(drng)) 58c283819a1e87 Stephan Müller 2020-01-09 @239 spin_unlock_irqrestore(&drng->spin_lock, *flags); 58c283819a1e87 Stephan Müller 2020-01-09 240 else 58c283819a1e87 Stephan Müller 2020-01-09 241 mutex_unlock(&drng->lock); 58c283819a1e87 Stephan Müller 2020-01-09 242 } 58c283819a1e87 Stephan Müller 2020-01-09 243 :::::: The code at line 239 was first introduced by commit :::::: 58c283819a1e879bc2e30d05720285f9709f7f6d Linux Random Number Generator :::::: TO: Stephan Müller :::::: CC: 0day robot --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org Intel Corporation