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X-CSE-ConnectionGUID: PKqGag+tTa++W8872YRsnw== X-CSE-MsgGUID: +ayaTF/bSoWGFjrQ4U+zCA== X-IronPort-AV: E=McAfee;i="6800,10657,11697"; a="72145092" X-IronPort-AV: E=Sophos;i="6.21,283,1763452800"; d="scan'208";a="72145092" Received: from orviesa007.jf.intel.com ([10.64.159.147]) by orvoesa108.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Feb 2026 04:32:42 -0800 X-CSE-ConnectionGUID: Lp5x3XOyS7a+N5GY+/X3LQ== X-CSE-MsgGUID: VWmLSFPXRma1eVX+c5/yVQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,283,1763452800"; d="scan'208";a="212327590" Received: from lkp-server01.sh.intel.com (HELO 765f4a05e27f) ([10.239.97.150]) by orviesa007.jf.intel.com with ESMTP; 11 Feb 2026 04:32:29 -0800 Received: from kbuild by 765f4a05e27f with local (Exim 4.98.2) (envelope-from ) id 1vq9OL-00000000py8-3rO7; Wed, 11 Feb 2026 12:32:25 +0000 Date: Wed, 11 Feb 2026 20:31:53 +0800 From: kernel test robot To: Byungchul Park , linux-mm@kvack.org, akpm@linux-foundation.org, netdev@vger.kernel.org Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, kernel_team@skhynix.com, harry.yoo@oracle.com, ast@kernel.org, daniel@iogearbox.net, davem@davemloft.net, kuba@kernel.org, hawk@kernel.org, john.fastabend@gmail.com, sdf@fomichev.me, saeedm@nvidia.com, leon@kernel.org, tariqt@nvidia.com, mbloch@nvidia.com, andrew+netdev@lunn.ch, edumazet@google.com, pabeni@redhat.com, david@redhat.com, lorenzo.stoakes@oracle.com, Liam.Howlett@oracle.com, vbabka@suse.cz, rppt@kernel.org, surenb@google.com, mhocko@suse.com, horms@kernel.org, jackmanb@google.com, hannes@cmpxchg.org Subject: Re: [PATCH v3] mm: introduce a new page type for page pool in page type Message-ID: <202602112054.QKfqC0UR-lkp@intel.com> References: <20260210114712.55072-1-byungchul@sk.com> Precedence: bulk X-Mailing-List: netdev@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: <20260210114712.55072-1-byungchul@sk.com> Hi Byungchul, kernel test robot noticed the following build warnings: [auto build test WARNING on akpm-mm/mm-everything] url: https://github.com/intel-lab-lkp/linux/commits/Byungchul-Park/mm-introduce-a-new-page-type-for-page-pool-in-page-type/20260210-194920 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20260210114712.55072-1-byungchul%40sk.com patch subject: [PATCH v3] mm: introduce a new page type for page pool in page type config: microblaze-randconfig-r134-20260211 (https://download.01.org/0day-ci/archive/20260211/202602112054.QKfqC0UR-lkp@intel.com/config) compiler: microblaze-linux-gcc (GCC) 15.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260211/202602112054.QKfqC0UR-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/202602112054.QKfqC0UR-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) net/core/skbuff.c: note: in included file: >> net/core/netmem_priv.h:21:20: sparse: sparse: cast to restricted netmem_ref >> net/core/netmem_priv.h:21:20: sparse: sparse: cast to restricted netmem_ref net/core/skbuff.c: note: in included file (through include/linux/skbuff.h, include/net/net_namespace.h, include/linux/inet.h): include/net/checksum.h:33:39: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected restricted __wsum [usertype] sum @@ got unsigned int @@ include/net/checksum.h:33:39: sparse: expected restricted __wsum [usertype] sum include/net/checksum.h:33:39: sparse: got unsigned int -- >> net/core/page_pool.c:715:20: sparse: sparse: cast to restricted netmem_ref net/core/page_pool.c:739:20: sparse: sparse: cast to restricted netmem_ref vim +21 net/core/netmem_priv.h 10 11 static inline bool netmem_is_pp(netmem_ref netmem) 12 { 13 netmem_ref clr_ref; 14 15 /* XXX: Now that the offset of page_type is shared between 16 * struct page and net_iov, just cast the netmem to struct page 17 * unconditionally by clearing NET_IOV if any, no matter whether 18 * it comes from struct net_iov or struct page. This should be 19 * adjusted once the offset is no longer shared. 20 */ > 21 clr_ref = (netmem_ref)((__force unsigned long)netmem & ~NET_IOV); 22 return PageNetpp(__netmem_to_page(clr_ref)); 23 } 24 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki