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Fri, 27 Feb 2026 11:10:14 -0800 (PST) From: Joshua Hahn To: kernel test robot Cc: Minchan Kim , Sergey Senozhatsky , oe-kbuild-all@lists.linux.dev, Johannes Weiner , Yosry Ahmed , Nhat Pham , Chengming Zhou , Andrew Morton , Linux Memory Management List , linux-kernel@vger.kernel.org, kernel-team@meta.com Subject: Re: [PATCH 5/8] mm/zsmalloc,zswap: Redirect zswap_entry->obcg to zpdesc Date: Fri, 27 Feb 2026 11:10:11 -0800 Message-ID: <20260227191012.144117-1-joshua.hahnjy@gmail.com> X-Mailer: git-send-email 2.47.3 In-Reply-To: <202602270738.SxqPEs3Q-lkp@intel.com> References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit On Fri, 27 Feb 2026 07:13:12 +0800 kernel test robot wrote: > Hi Joshua, > > kernel test robot noticed the following build errors: > > [auto build test ERROR on axboe/for-next] > [also build test ERROR on linus/master v7.0-rc1 next-20260226] > [cannot apply to akpm-mm/mm-everything] > [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/Joshua-Hahn/mm-zsmalloc-Rename-zs_object_copy-to-zs_obj_copy/20260227-033239 > base: https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux.git for-next > patch link: https://lore.kernel.org/r/20260226192936.3190275-6-joshua.hahnjy%40gmail.com > patch subject: [PATCH 5/8] mm/zsmalloc,zswap: Redirect zswap_entry->obcg to zpdesc > config: x86_64-buildonly-randconfig-004-20260227 (https://download.01.org/0day-ci/archive/20260227/202602270738.SxqPEs3Q-lkp@intel.com/config) > compiler: gcc-14 (Debian 14.2.0-19) 14.2.0 > reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260227/202602270738.SxqPEs3Q-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/202602270738.SxqPEs3Q-lkp@intel.com/ > > All errors (new ones prefixed by >>): > > mm/zswap.c: In function 'zswap_lru_add': > >> mm/zswap.c:626:25: error: implicit declaration of function 'obj_cgroup_memcg'; did you mean 'obj_cgroup_get'? [-Wimplicit-function-declaration] > 626 | memcg = objcg ? obj_cgroup_memcg(objcg) : NULL; > | ^~~~~~~~~~~~~~~~ > | obj_cgroup_get > >> mm/zswap.c:626:49: error: pointer/integer type mismatch in conditional expression [-Wint-conversion] > 626 | memcg = objcg ? obj_cgroup_memcg(objcg) : NULL; > | ^ > mm/zswap.c: In function 'zswap_lru_del': > mm/zswap.c:639:49: error: pointer/integer type mismatch in conditional expression [-Wint-conversion] > 639 | memcg = objcg ? obj_cgroup_memcg(objcg) : NULL; > | ^ Hi Kernel test robot, Thank you! It appears that I've forgotten to define obj_cgroup_memcg for the #else CONFIG_MEMCG case. I'll update this in v2! Joshua