From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.11]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 94DD3327208; Mon, 22 Dec 2025 21:13:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.11 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766437992; cv=none; b=FkRO9qshzM2GRDT1LgV0Koa5BmhIPE25YrtOawam+yU5EoVT7U8O/HQhmbZ0n16GbGaoNxgFBgZJS+4glI9bj5dRrLgGjZq6HeC8RVZiqr1dNQP1u7gZc2sk39XW5KXLZyg0KI8d9MLcHNNWYUopbgXDftLwg4cqAx+yD610FFo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766437992; c=relaxed/simple; bh=FohYw9nz0fzNBe1jS2/16lLKKljrrVext2Apd0Bs5cQ=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=Hu9xoZB6MOLmukXoPvecFtNRTGhXYmr7ZDA5IJkdAQlvqZuW7HygRv+VEoBQpvbFTRbiPvzlz4uJJPgqwbZdzOiLcAS8t5w+ZSPWZ0UvCDC1GKzd2xhGf0W+SwAQnjxvq/4Jb94KmWl6B31g7HZZbyfQXnlaNmfOBiD4qTqEbfo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=kAcebSPj; arc=none smtp.client-ip=198.175.65.11 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="kAcebSPj" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1766437990; x=1797973990; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=FohYw9nz0fzNBe1jS2/16lLKKljrrVext2Apd0Bs5cQ=; b=kAcebSPjkUoOX4131pPYe/XmqIdQWp+1Lqvm5Z+gT356XtMyYTLtwgYn +ihduhU0yS/Ow+8qEEsaloDiNW/8TarnAnryEUtO4eaRsYqS9TL9ZvpQU Z7WY7iUoYbrkT56VseeHKMy5IEA+55FcFWVSICoib6Jw7R2fIyzMnnfdx htIhV65SMsQKA+CU0d76pLKDDWvEiYJaI4ve1Z7Bft793DIk4950KxwF5 +FJtCuY/2TeVsgOq847AqjKb7WI7G13dWL8EEXJ7aK2/7FtsL8UxQkDXy HnDuJrUNLMQO86g7dBp+kUFMWD002Y6aJOGpEdsMT4sPkbdCZgkeki+Pm A==; X-CSE-ConnectionGUID: vJ8uHeoUSQ+q/j+xiH6CUA== X-CSE-MsgGUID: xccOeLdESSmsLvWFiZgpqA== X-IronPort-AV: E=McAfee;i="6800,10657,11650"; a="78611112" X-IronPort-AV: E=Sophos;i="6.21,169,1763452800"; d="scan'208";a="78611112" Received: from orviesa007.jf.intel.com ([10.64.159.147]) by orvoesa103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Dec 2025 13:13:10 -0800 X-CSE-ConnectionGUID: zckZnThfQfm24Lgr2elbaw== X-CSE-MsgGUID: CPw7wIctQ0y2luUuhZl8Sw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,169,1763452800"; d="scan'208";a="199608060" Received: from lkp-server02.sh.intel.com (HELO dd3453e2b682) ([10.239.97.151]) by orviesa007.jf.intel.com with ESMTP; 22 Dec 2025 13:13:06 -0800 Received: from kbuild by dd3453e2b682 with local (Exim 4.98.2) (envelope-from ) id 1vXnD8-0000000017T-0U9U; Mon, 22 Dec 2025 21:12:59 +0000 Date: Tue, 23 Dec 2025 05:12:38 +0800 From: kernel test robot To: Wanpeng Li , Peter Zijlstra , Ingo Molnar , Thomas Gleixner , Paolo Bonzini , Sean Christopherson Cc: oe-kbuild-all@lists.linux.dev, K Prateek Nayak , Christian Borntraeger , Steven Rostedt , Vincent Guittot , Juri Lelli , linux-kernel@vger.kernel.org, kvm@vger.kernel.org, Wanpeng Li Subject: Re: [PATCH v2 2/9] sched/fair: Add rate-limiting and validation helpers Message-ID: <202512230415.0RatyaQF-lkp@intel.com> References: <20251219035334.39790-3-kernellwp@gmail.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20251219035334.39790-3-kernellwp@gmail.com> Hi Wanpeng, kernel test robot noticed the following build warnings: [auto build test WARNING on kvm/queue] [also build test WARNING on kvm/next tip/sched/core peterz-queue/sched/core tip/master linus/master v6.19-rc2 next-20251219] [cannot apply to kvm/linux-next tip/auto-latest] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Wanpeng-Li/sched-fair-Add-rate-limiting-and-validation-helpers/20251219-125353 base: https://git.kernel.org/pub/scm/virt/kvm/kvm.git queue patch link: https://lore.kernel.org/r/20251219035334.39790-3-kernellwp%40gmail.com patch subject: [PATCH v2 2/9] sched/fair: Add rate-limiting and validation helpers config: openrisc-randconfig-r122-20251221 (https://download.01.org/0day-ci/archive/20251223/202512230415.0RatyaQF-lkp@intel.com/config) compiler: or1k-linux-gcc (GCC) 15.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251223/202512230415.0RatyaQF-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202512230415.0RatyaQF-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) kernel/sched/fair.c:1158:49: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *running @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/fair.c:1158:49: sparse: expected struct task_struct *running kernel/sched/fair.c:1158:49: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/fair.c:1194:33: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct sched_entity *se @@ got struct sched_entity [noderef] __rcu * @@ kernel/sched/fair.c:1194:33: sparse: expected struct sched_entity *se kernel/sched/fair.c:1194:33: sparse: got struct sched_entity [noderef] __rcu * kernel/sched/fair.c:1250:34: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct sched_entity const *se @@ got struct sched_entity [noderef] __rcu * @@ kernel/sched/fair.c:1250:34: sparse: expected struct sched_entity const *se kernel/sched/fair.c:1250:34: sparse: got struct sched_entity [noderef] __rcu * kernel/sched/fair.c:12991:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/fair.c:12991:9: sparse: expected struct sched_domain *[assigned] sd kernel/sched/fair.c:12991:9: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/fair.c:8354:20: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/fair.c:8354:20: sparse: expected struct sched_domain *[assigned] sd kernel/sched/fair.c:8354:20: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/fair.c:8558:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] tmp @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/fair.c:8558:9: sparse: expected struct sched_domain *[assigned] tmp kernel/sched/fair.c:8558:9: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/fair.c:8757:39: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *donor @@ got struct task_struct [noderef] __rcu *donor @@ kernel/sched/fair.c:8757:39: sparse: expected struct task_struct *donor kernel/sched/fair.c:8757:39: sparse: got struct task_struct [noderef] __rcu *donor kernel/sched/fair.c:8784:37: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct task_struct *tsk @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/fair.c:8784:37: sparse: expected struct task_struct *tsk kernel/sched/fair.c:8784:37: sparse: got struct task_struct [noderef] __rcu *curr >> kernel/sched/fair.c:9089:20: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct task_struct *p_yielding @@ got struct task_struct [noderef] __rcu *donor @@ kernel/sched/fair.c:9089:20: sparse: expected struct task_struct *p_yielding kernel/sched/fair.c:9089:20: sparse: got struct task_struct [noderef] __rcu *donor kernel/sched/fair.c:9110:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu *donor @@ kernel/sched/fair.c:9110:38: sparse: expected struct task_struct *curr kernel/sched/fair.c:9110:38: sparse: got struct task_struct [noderef] __rcu *donor kernel/sched/fair.c:10146:40: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct sched_domain *child @@ got struct sched_domain [noderef] __rcu *child @@ kernel/sched/fair.c:10146:40: sparse: expected struct sched_domain *child kernel/sched/fair.c:10146:40: sparse: got struct sched_domain [noderef] __rcu *child kernel/sched/fair.c:10774:22: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/fair.c:10774:22: sparse: struct task_struct [noderef] __rcu * kernel/sched/fair.c:10774:22: sparse: struct task_struct * kernel/sched/fair.c:12246:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/fair.c:12246:9: sparse: expected struct sched_domain *[assigned] sd kernel/sched/fair.c:12246:9: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/fair.c:11884:44: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct sched_domain *sd_parent @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/fair.c:11884:44: sparse: expected struct sched_domain *sd_parent kernel/sched/fair.c:11884:44: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/fair.c:12359:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/fair.c:12359:9: sparse: expected struct sched_domain *[assigned] sd kernel/sched/fair.c:12359:9: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/fair.c:6688:35: sparse: sparse: marked inline, but without a definition kernel/sched/fair.c: note: in included file: kernel/sched/sched.h:2647:9: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2647:9: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2647:9: sparse: struct task_struct * kernel/sched/sched.h:2314:26: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2314:26: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2314:26: sparse: struct task_struct * kernel/sched/sched.h:2303:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2303:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2303:25: sparse: struct task_struct * kernel/sched/sched.h:2314:26: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2314:26: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2314:26: sparse: struct task_struct * kernel/sched/sched.h:2314:26: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2314:26: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2314:26: sparse: struct task_struct * kernel/sched/sched.h:2314:26: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2314:26: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2314:26: sparse: struct task_struct * vim +9089 kernel/sched/fair.c 9064 9065 /* 9066 * Validate tasks for yield deboost operation. 9067 * Returns the yielding task on success, NULL on validation failure. 9068 * 9069 * Checks: feature enabled, valid target, same runqueue, target is fair class, 9070 * both on_rq. Called under rq->lock. 9071 * 9072 * Note: p_yielding (rq->donor) is guaranteed to be fair class by the caller 9073 * (yield_to_task_fair is only called when curr->sched_class == p->sched_class). 9074 */ 9075 static struct task_struct __maybe_unused * 9076 yield_deboost_validate_tasks(struct rq *rq, struct task_struct *p_target) 9077 { 9078 struct task_struct *p_yielding; 9079 9080 if (!sysctl_sched_vcpu_debooster_enabled) 9081 return NULL; 9082 9083 if (!p_target) 9084 return NULL; 9085 9086 if (yield_deboost_rate_limit(rq)) 9087 return NULL; 9088 > 9089 p_yielding = rq->donor; 9090 if (!p_yielding || p_yielding == p_target) 9091 return NULL; 9092 9093 if (p_target->sched_class != &fair_sched_class) 9094 return NULL; 9095 9096 if (task_rq(p_target) != rq) 9097 return NULL; 9098 9099 if (!p_target->se.on_rq || !p_yielding->se.on_rq) 9100 return NULL; 9101 9102 return p_yielding; 9103 } 9104 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki