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X-CSE-ConnectionGUID: P4erBHL/Rfy5X/XrZUYtjA== X-CSE-MsgGUID: 2SvX6lMKSlmIKrd/CzSUvw== X-IronPort-AV: E=McAfee;i="6800,10657,11831"; a="87323615" X-IronPort-AV: E=Sophos;i="6.24,231,1774335600"; d="scan'208";a="87323615" Received: from orviesa010.jf.intel.com ([10.64.159.150]) by orvoesa106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Jun 2026 04:19:03 -0700 X-CSE-ConnectionGUID: oup/CHX1TU+U6w3blX9YZg== X-CSE-MsgGUID: M6uJRUDKT0evHSKxIi8TIQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.24,231,1774335600"; d="scan'208";a="250865264" Received: from lkp-server02.sh.intel.com (HELO ea128546eb3d) ([10.239.97.151]) by orviesa010.jf.intel.com with ESMTP; 29 Jun 2026 04:19:01 -0700 Received: from kbuild by ea128546eb3d with local (Exim 4.98.2) (envelope-from ) id 1weA0v-000000007Kv-3gAR; Mon, 29 Jun 2026 11:18:57 +0000 Date: Mon, 29 Jun 2026 19:18:51 +0800 From: kernel test robot To: Wenchao Hao Cc: oe-kbuild-all@lists.linux.dev, David Hildenbrand , Andrew Morton , Linux Memory Management List , mm-commits@vger.kernel.org, Nhat Pham Subject: [akpm-mm:mm-new 107/142] mm/zsmalloc.c:800:21: warning: 'obj_to_class_idx' defined but not used Message-ID: <202606291933.Cw5TBs54-lkp@intel.com> User-Agent: s-nail v14.9.25 X-Rspam-User: X-Stat-Signature: ox1f6bmp1nxq5q8qm5hr3g3heew7pbpy X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: 048E61C0003 X-HE-Tag: 1782732105-652793 X-HE-Meta: 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 0c2ZMTCR k2wHBFWJmZqSuPjntIyOLZpj5h5YJ+Eg4l7Qlueo6HMm4Q5JTJ7x/x13Lh9Z02FT2XW2hRj89egAtH6FQv3wjMSpVPs5IyiSuGjv89qgqV0bAlR34GmHCUhCeJWj6hRV9juBKHek9hfRd928PSFWa006LmsHzZqEtVIu/JdVinQDKm5onNAtanOVEXsEZz57LfoXDIslymx/wRUO9OsS9IcN5DSUUX+grpwS0gqSMqvOLYXPNCGOLLxpAR/wjxOv1tvXyAoDV8pTjdu3LQyaNPMKnc2XYibMX7xfL8tvsStZDezbzDEmGhG+iVix+6b0PY0yP5JT8vJWA9Ho= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: tree: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-new head: 88cefc306c43b58d9bb65c9e96e284306710d961 commit: b3a8a00229ce2b0367afff075a00d53b92e1234a [107/142] mm/zsmalloc: encode class index in obj value for lockless class lookup config: csky-randconfig-001-20260629 (https://download.01.org/0day-ci/archive/20260629/202606291933.Cw5TBs54-lkp@intel.com/config) compiler: csky-linux-gcc (GCC) 10.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260629/202606291933.Cw5TBs54-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/202606291933.Cw5TBs54-lkp@intel.com/ All warnings (new ones prefixed by >>): >> mm/zsmalloc.c:800:21: warning: 'obj_to_class_idx' defined but not used [-Wunused-function] 800 | static unsigned int obj_to_class_idx(unsigned long obj) | ^~~~~~~~~~~~~~~~ vim +/obj_to_class_idx +800 mm/zsmalloc.c 798 799 /* Folds to 0 when ZS_OBJ_CLASS_BITS == 0; no ifdef needed at callers. */ > 800 static unsigned int obj_to_class_idx(unsigned long obj) 801 { 802 return (obj >> ZS_OBJ_IDX_BITS) & ZS_OBJ_CLASS_MASK; 803 } 804 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki