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X-IronPort-AV: E=McAfee;i="6600,9927,10918"; a="393321363" X-IronPort-AV: E=Sophos;i="6.04,261,1695711600"; d="scan'208";a="393321363" Received: from orviesa002.jf.intel.com ([10.64.159.142]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Dec 2023 11:52:22 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.04,261,1695711600"; d="scan'208";a="13588282" Received: from lkp-server02.sh.intel.com (HELO b07ab15da5fe) ([10.239.97.151]) by orviesa002.jf.intel.com with ESMTP; 08 Dec 2023 11:52:20 -0800 Received: from kbuild by b07ab15da5fe with local (Exim 4.96) (envelope-from ) id 1rBgtW-000EI3-2E; Fri, 08 Dec 2023 19:52:18 +0000 Date: Sat, 9 Dec 2023 03:51:50 +0800 From: kernel test robot To: oe-kbuild@lists.linux.dev Cc: lkp@intel.com Subject: fs/seq_file.c:938:9: sparse: struct list_head [noderef] __rcu * Message-ID: <202312090332.zHaDRvAI-lkp@intel.com> Precedence: bulk X-Mailing-List: oe-kbuild@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline :::::: :::::: Manual check reason: "low confidence static check warning: fs/seq_file.c:938:9: sparse: struct list_head [noderef] __rcu *" :::::: BCC: lkp@intel.com CC: oe-kbuild-all@lists.linux.dev CC: linux-kernel@vger.kernel.org TO: David Howells tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 4df7c5fde316820286dfa6d203a1005d7fbe007d commit: ad25f5cb39872ca14bcbe00816ae65c22fe04b89 rxrpc: Fix locking issue date: 1 year, 7 months ago :::::: branch date: 3 hours ago :::::: commit date: 1 year, 7 months ago config: x86_64-alldefconfig (https://download.01.org/0day-ci/archive/20231209/202312090332.zHaDRvAI-lkp@intel.com/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231209/202312090332.zHaDRvAI-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/r/202312090332.zHaDRvAI-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) fs/seq_file.c:938:9: sparse: sparse: incompatible types in comparison expression (different address spaces): >> fs/seq_file.c:938:9: sparse: struct list_head [noderef] __rcu * >> fs/seq_file.c:938:9: sparse: struct list_head * fs/seq_file.c:938:9: sparse: sparse: incompatible types in comparison expression (different address spaces): >> fs/seq_file.c:938:9: sparse: struct list_head [noderef] __rcu * >> fs/seq_file.c:938:9: sparse: struct list_head * >> fs/seq_file.c:960:12: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct list_head *lh @@ got struct list_head [noderef] __rcu * @@ fs/seq_file.c:960:12: sparse: expected struct list_head *lh fs/seq_file.c:960:12: sparse: got struct list_head [noderef] __rcu * fs/seq_file.c:1087:24: sparse: sparse: incompatible types in comparison expression (different address spaces): fs/seq_file.c:1087:24: sparse: struct hlist_node [noderef] __rcu * fs/seq_file.c:1087:24: sparse: struct hlist_node * fs/seq_file.c:1089:24: sparse: sparse: incompatible types in comparison expression (different address spaces): fs/seq_file.c:1089:24: sparse: struct hlist_node [noderef] __rcu * fs/seq_file.c:1089:24: sparse: struct hlist_node * vim +938 fs/seq_file.c 66655de6d132b7 Li Zefan 2010-02-08 933 ad25f5cb39872c David Howells 2022-05-21 934 struct list_head *seq_list_start_rcu(struct list_head *head, loff_t pos) ad25f5cb39872c David Howells 2022-05-21 935 { ad25f5cb39872c David Howells 2022-05-21 936 struct list_head *lh; ad25f5cb39872c David Howells 2022-05-21 937 ad25f5cb39872c David Howells 2022-05-21 @938 list_for_each_rcu(lh, head) ad25f5cb39872c David Howells 2022-05-21 939 if (pos-- == 0) ad25f5cb39872c David Howells 2022-05-21 940 return lh; ad25f5cb39872c David Howells 2022-05-21 941 ad25f5cb39872c David Howells 2022-05-21 942 return NULL; ad25f5cb39872c David Howells 2022-05-21 943 } ad25f5cb39872c David Howells 2022-05-21 944 EXPORT_SYMBOL(seq_list_start_rcu); ad25f5cb39872c David Howells 2022-05-21 945 ad25f5cb39872c David Howells 2022-05-21 946 struct list_head *seq_list_start_head_rcu(struct list_head *head, loff_t pos) ad25f5cb39872c David Howells 2022-05-21 947 { ad25f5cb39872c David Howells 2022-05-21 948 if (!pos) ad25f5cb39872c David Howells 2022-05-21 949 return head; ad25f5cb39872c David Howells 2022-05-21 950 ad25f5cb39872c David Howells 2022-05-21 951 return seq_list_start_rcu(head, pos - 1); ad25f5cb39872c David Howells 2022-05-21 952 } ad25f5cb39872c David Howells 2022-05-21 953 EXPORT_SYMBOL(seq_list_start_head_rcu); ad25f5cb39872c David Howells 2022-05-21 954 ad25f5cb39872c David Howells 2022-05-21 955 struct list_head *seq_list_next_rcu(void *v, struct list_head *head, ad25f5cb39872c David Howells 2022-05-21 956 loff_t *ppos) ad25f5cb39872c David Howells 2022-05-21 957 { ad25f5cb39872c David Howells 2022-05-21 958 struct list_head *lh; ad25f5cb39872c David Howells 2022-05-21 959 ad25f5cb39872c David Howells 2022-05-21 @960 lh = list_next_rcu((struct list_head *)v); ad25f5cb39872c David Howells 2022-05-21 961 ++*ppos; ad25f5cb39872c David Howells 2022-05-21 962 return lh == head ? NULL : lh; ad25f5cb39872c David Howells 2022-05-21 963 } ad25f5cb39872c David Howells 2022-05-21 964 EXPORT_SYMBOL(seq_list_next_rcu); ad25f5cb39872c David Howells 2022-05-21 965 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki