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X-CSE-ConnectionGUID: uX5DDFOgSGWnXTTOZ8yE2w== X-CSE-MsgGUID: vsEtVKUbTC6ROcKCLX529g== X-IronPort-AV: E=McAfee;i="6800,10657,11586"; a="74285879" X-IronPort-AV: E=Sophos;i="6.19,258,1754982000"; d="scan'208";a="74285879" Received: from orviesa007.jf.intel.com ([10.64.159.147]) by fmvoesa103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Oct 2025 19:44:54 -0700 X-CSE-ConnectionGUID: HlzfkQqbSTGFPsG03Ui8lQ== X-CSE-MsgGUID: dsY0bqw5SGqOnb5Ykzf3Ow== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.19,258,1754982000"; d="scan'208";a="184824253" Received: from lkp-server02.sh.intel.com (HELO 66d7546c76b2) ([10.239.97.151]) by orviesa007.jf.intel.com with ESMTP; 26 Oct 2025 19:44:48 -0700 Received: from kbuild by 66d7546c76b2 with local (Exim 4.96) (envelope-from ) id 1vDDDx-000GTN-2p; Mon, 27 Oct 2025 02:44:45 +0000 Date: Mon, 27 Oct 2025 10:44:19 +0800 From: kernel test robot To: Menglong Dong , ast@kernel.org, jolsa@kernel.org Cc: oe-kbuild-all@lists.linux.dev, daniel@iogearbox.net, john.fastabend@gmail.com, andrii@kernel.org, martin.lau@linux.dev, eddyz87@gmail.com, song@kernel.org, yonghong.song@linux.dev, kpsingh@kernel.org, sdf@fomichev.me, haoluo@google.com, mattbobrowski@google.com, rostedt@goodmis.org, mhiramat@kernel.org, leon.hwang@linux.dev, jiang.biao@linux.dev, bpf@vger.kernel.org, linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org Subject: Re: [PATCH bpf-next v3 2/7] bpf: add two kfunc for TRACE_SESSION Message-ID: <202510270955.mbxODFvZ-lkp@intel.com> References: <20251026030143.23807-3-dongml2@chinatelecom.cn> Precedence: bulk X-Mailing-List: linux-trace-kernel@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: <20251026030143.23807-3-dongml2@chinatelecom.cn> Hi Menglong, kernel test robot noticed the following build warnings: [auto build test WARNING on bpf-next/master] url: https://github.com/intel-lab-lkp/linux/commits/Menglong-Dong/bpf-add-tracing-session-support/20251026-110720 base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master patch link: https://lore.kernel.org/r/20251026030143.23807-3-dongml2%40chinatelecom.cn patch subject: [PATCH bpf-next v3 2/7] bpf: add two kfunc for TRACE_SESSION config: i386-randconfig-061-20251027 (https://download.01.org/0day-ci/archive/20251027/202510270955.mbxODFvZ-lkp@intel.com/config) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251027/202510270955.mbxODFvZ-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/202510270955.mbxODFvZ-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) kernel/trace/bpf_trace.c:833:41: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void [noderef] __user *[addressable] [assigned] [usertype] sival_ptr @@ got void * @@ kernel/trace/bpf_trace.c:833:41: sparse: expected void [noderef] __user *[addressable] [assigned] [usertype] sival_ptr kernel/trace/bpf_trace.c:833:41: sparse: got void * kernel/trace/bpf_trace.c:3573:52: sparse: sparse: cast removes address space '__user' of expression kernel/trace/bpf_trace.c:3587:56: sparse: sparse: cast removes address space '__user' of expression kernel/trace/bpf_trace.c:3601:52: sparse: sparse: cast removes address space '__user' of expression kernel/trace/bpf_trace.c:3608:56: sparse: sparse: cast removes address space '__user' of expression kernel/trace/bpf_trace.c:3616:52: sparse: sparse: cast removes address space '__user' of expression kernel/trace/bpf_trace.c:3624:56: sparse: sparse: cast removes address space '__user' of expression kernel/trace/bpf_trace.c: note: in included file (through include/linux/rbtree.h, include/linux/mm_types.h, include/linux/mmzone.h, ...): include/linux/rcupdate.h:895:9: sparse: sparse: context imbalance in 'uprobe_prog_run' - unexpected unlock >> kernel/trace/bpf_trace.c:3379:35: sparse: sparse: non size-preserving integer to pointer cast vim +3379 kernel/trace/bpf_trace.c 3372 3373 __bpf_kfunc u64 *bpf_fsession_cookie(void *ctx) 3374 { 3375 /* This helper call is inlined by verifier. */ 3376 u64 nr_args = ((u64 *)ctx)[-1]; 3377 3378 /* ctx[nr_args + 2] is the session cookie address */ > 3379 return (u64 *)((u64 *)ctx)[nr_args + 2]; 3380 } 3381 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki