From mboxrd@z Thu Jan 1 00:00:00 1970 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752423AbeAJRp6 (ORCPT + 1 other); Wed, 10 Jan 2018 12:45:58 -0500 Received: from mga06.intel.com ([134.134.136.31]:30714 "EHLO mga06.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751706AbeAJRp5 (ORCPT ); Wed, 10 Jan 2018 12:45:57 -0500 X-Amp-Result: UNSCANNABLE X-Amp-File-Uploaded: False X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.46,341,1511856000"; d="scan'208";a="19912991" Date: Thu, 11 Jan 2018 01:45:38 +0800 From: kbuild test robot To: Byungchul Park Cc: kbuild-all@01.org, peterz@infradead.org, mingo@kernel.org, rostedt@goodmis.org, tglx@linutronix.de, raistlin@linux.it, linux-kernel@vger.kernel.org, juri.lelli@gmail.com, bristot@redhat.com, kernel-team@lge.com Subject: Re: [RESEND PATCH v11 2/2] sched/rt: Add support for SD_PREFER_SIBLING on find_lowest_rq() Message-ID: <201801110107.GPw5MCMO%fengguang.wu@intel.com> References: <1515392095-32455-3-git-send-email-byungchul.park@lge.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1515392095-32455-3-git-send-email-byungchul.park@lge.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: fengguang.wu@intel.com X-SA-Exim-Scanned: No (on bee); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Return-Path: Hi Byungchul, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on tip/sched/core] [also build test WARNING on v4.15-rc7 next-20180110] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Byungchul-Park/sched-deadline-Add-support-for-SD_PREFER_SIBLING-on-find_later_rq/20180110-225946 reproduce: # apt-get install sparse make ARCH=x86_64 allmodconfig make C=1 CF=-D__CHECK_ENDIAN__ sparse warnings: (new ones prefixed by >>) kernel/sched/sched.h:2104:16: sparse: incompatible types in comparison expression (different address spaces) kernel/sched/rt.c:1681:9: sparse: incompatible types in comparison expression (different address spaces) >> kernel/sched/rt.c:1629:55: sparse: incorrect type in argument 1 (different modifiers) @@ expected struct sched_domain @@ got structstruct sched_domain @@ kernel/sched/rt.c:1629:55: expected struct sched_domain kernel/sched/rt.c:1629:55: got struct sched_domain const kernel/sched/rt.c:1630:64: sparse: incorrect type in argument 1 (different modifiers) @@ expected struct sched_domain @@ got structstruct sched_domain @@ kernel/sched/rt.c:1630:64: expected struct sched_domain kernel/sched/rt.c:1630:64: got struct sched_domain const kernel/sched/rt.c:1824:9: sparse: context imbalance in 'find_lock_lowest_rq' - different lock contexts for basic block kernel/sched/rt.c:1919:9: sparse: context imbalance in 'push_rt_task' - unexpected unlock kernel/sched/rt.c: In function 'find_cpu': kernel/sched/rt.c:1629:48: warning: passing argument 1 of 'sched_domain_span' discards 'const' qualifier from pointer target type const struct cpumask = sched_domain_span(sd); ^~ In file included from kernel/sched/sched.h:6:0, from kernel/sched/rt.c:7: include/linux/sched/topology.h:160:31: note: expected 'struct sched_domain but argument is of type 'const struct sched_domain static inline struct cpumask sched_domain ^~~~~~~~~~~~~~~~~ kernel/sched/rt.c:1630:57: warning: passing argument 1 of 'sched_domain_span' discards 'const' qualifier from pointer target type const struct cpumask = prefer sched_domain_span(prefer) : NULL; ^~~~~~ In file included from kernel/sched/sched.h:6:0, from kernel/sched/rt.c:7: include/linux/sched/topology.h:160:31: note: expected 'struct sched_domain but argument is of type 'const struct sched_domain static inline struct cpumask sched_domain ^~~~~~~~~~~~~~~~~ vim +1629 kernel/sched/rt.c 1621 1622 /* 1623 * Find the first cpu in: mask & sd & ~prefer 1624 */ 1625 static int find_cpu(const struct cpumask *mask, 1626 const struct sched_domain *sd, 1627 const struct sched_domain *prefer) 1628 { > 1629 const struct cpumask *sds = sched_domain_span(sd); 1630 const struct cpumask *ps = prefer ? sched_domain_span(prefer) : NULL; 1631 int cpu; 1632 1633 for_each_cpu(cpu, mask) { 1634 if (!cpumask_test_cpu(cpu, sds)) 1635 continue; 1636 if (ps && cpumask_test_cpu(cpu, ps)) 1637 continue; 1638 break; 1639 } 1640 1641 return cpu; 1642 } 1643 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation