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a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1753193660; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=69wFwka6emBR8tBkwHGN1pUqh6+e3BWq6cA/h0Y11+Y=; b=3ELYrgUvL+P0cho9YjxXAVXcsv65GCzS8UjW0eQBaiyDik1H94vBeX/T4Pvp1vsR3S7+KM /WRM7JwDblrSGNwHwlu9fFPEpIwa2Fmk2r8JcBMSIDjs1ZhHJYx7xh5DhqybQyFng2Tl/9 Xp0pM2RhTe10+nva8yq7k7fx9sHnbR0= Received: from unknown (HELO yjaykim-PowerEdge-T330) (10.177.112.156) by 156.147.51.102 with ESMTP; 22 Jul 2025 23:14:16 +0900 X-Original-SENDERIP: 10.177.112.156 X-Original-MAILFROM: youngjun.park@lge.com Date: Tue, 22 Jul 2025 23:14:09 +0900 From: YoungJun Park To: kernel test robot Cc: akpm@linux-foundation.org, hannes@cmpxchg.org, oe-kbuild-all@lists.linux.dev, mhocko@kernel.org, roman.gushchin@linux.dev, shakeel.butt@linux.dev, muchun.song@linux.dev, shikemeng@huaweicloud.com, kasong@tencent.com, nphamcs@gmail.com, bhe@redhat.com, baohua@kernel.org, chrisl@kernel.org, cgroups@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, gunho.lee@lge.com, iamjoonsoo.kim@lge.com, taejoon.song@lge.com, Michal =?iso-8859-1?Q?Koutn=FD?= Subject: Re: [PATCH 1/4] mm/swap, memcg: Introduce infrastructure for cgroup-based swap priority Message-ID: References: <20250716202006.3640584-2-youngjun.park@lge.com> <202507212243.Lf8fSo0T-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <202507212243.Lf8fSo0T-lkp@intel.com> X-Rspam-User: X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: 85C4420019 X-Stat-Signature: hgn1tfzrrhdsq1ebj3wxsbptgzardtid X-HE-Tag: 1753193659-502336 X-HE-Meta: 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 +Pig3nsF 53i7ZHjRwo73EG2t/BT7ExR5SVMY4Oc8z75Ghnb2rUfqu4M1xhMw4Hex3SokP8M1Cr7z1bRamaJKRb2IJAAc/zhlPO3G+aC9wLcQcQsVbmfRu/SfGktt5xdNlofrm6aTzhOuff8D6ACZdQHCs0MwFewsVOwZX7Fc0YtGuxKe4q2KGa6AbSugtLCzhqWF3POjH2WQvHnIfzrZwWW0Q1dlMw6EVc2VujVWLLUoVUzklQYu4ZZK1apKmO4V8tLAw+9ZAzKopdP1xawLtfxsnYvec/dP5F3HMEzHd50mKZswImm1bSYYmvRZvDoFm6EBJZbPy6gmIEi0QQdKW5W0aFtOoJqvmOwRw5nS5waBGxOmQV9uOF1WDs5UDxn1mOQ== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Mon, Jul 21, 2025 at 11:13:24PM +0800, kernel test robot wrote: > Hi Youngjun, > > kernel test robot noticed the following build warnings: > > [auto build test WARNING on 347e9f5043c89695b01e66b3ed111755afcf1911] > > url: https://github.com/intel-lab-lkp/linux/commits/Youngjun-Park/mm-swap-memcg-Introduce-infrastructure-for-cgroup-based-swap-priority/20250717-042648 > base: 347e9f5043c89695b01e66b3ed111755afcf1911 > patch link: https://lore.kernel.org/r/20250716202006.3640584-2-youngjun.park%40lge.com > patch subject: [PATCH 1/4] mm/swap, memcg: Introduce infrastructure for cgroup-based swap priority > config: loongarch-randconfig-r123-20250721 (https://download.01.org/0day-ci/archive/20250721/202507212243.Lf8fSo0T-lkp@intel.com/config) > compiler: clang version 19.1.7 (https://github.com/llvm/llvm-project cd708029e0b2869e80abe31ddb175f7c35361f90) > reproduce: (https://download.01.org/0day-ci/archive/20250721/202507212243.Lf8fSo0T-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/202507212243.Lf8fSo0T-lkp@intel.com/ > > sparse warnings: (new ones prefixed by >>) > >> mm/swap_cgroup_priority.c:115:16: sparse: sparse: incompatible types in comparison expression (different address spaces): > mm/swap_cgroup_priority.c:115:16: sparse: struct swap_cgroup_priority [noderef] __rcu * > mm/swap_cgroup_priority.c:115:16: sparse: struct swap_cgroup_priority * > mm/swap_cgroup_priority.c:729:9: sparse: sparse: incompatible types in comparison expression (different address spaces): > mm/swap_cgroup_priority.c:729:9: sparse: struct swap_cgroup_priority [noderef] __rcu * > mm/swap_cgroup_priority.c:729:9: sparse: struct swap_cgroup_priority * > mm/swap_cgroup_priority.c:638:25: sparse: sparse: incompatible types in comparison expression (different address spaces): > mm/swap_cgroup_priority.c:638:25: sparse: struct swap_cgroup_priority [noderef] __rcu * > mm/swap_cgroup_priority.c:638:25: sparse: struct swap_cgroup_priority * > > vim +115 mm/swap_cgroup_priority.c > > 108 > 109 static struct swap_cgroup_priority *get_swap_cgroup_priority( > 110 struct mem_cgroup *memcg) > 111 { > 112 if (!memcg) > 113 return NULL; > 114 > > 115 return rcu_dereference(memcg->swap_priority); > 116 } > 117 > This part of the code, which retrieves the object, is expected to be properly updated in a subsequent patch series. Therefore, I believe it's reasonable to leave it as-is for now. Best Regard, Youngjun Park