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X-CSE-ConnectionGUID: CaKQMXDiSLOgTb7rUO451w== X-CSE-MsgGUID: WkUuoBLsRZKwhWvB9cUUNg== X-IronPort-AV: E=McAfee;i="6800,10657,11745"; a="79833580" X-IronPort-AV: E=Sophos;i="6.23,151,1770624000"; d="scan'208";a="79833580" Received: from orviesa005.jf.intel.com ([10.64.159.145]) by orvoesa106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 31 Mar 2026 06:06:36 -0700 X-CSE-ConnectionGUID: nyrjClxSSAy1RHArWb0LOg== X-CSE-MsgGUID: SnPf/vxeQmGX+4es5wegPg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,151,1770624000"; d="scan'208";a="231291336" Received: from lkp-server01.sh.intel.com (HELO 283bf2e1b94a) ([10.239.97.150]) by orviesa005.jf.intel.com with ESMTP; 31 Mar 2026 06:06:34 -0700 Received: from kbuild by 283bf2e1b94a with local (Exim 4.98.2) (envelope-from ) id 1w7Ynf-000000002eH-3mus; Tue, 31 Mar 2026 13:06:31 +0000 Date: Tue, 31 Mar 2026 21:06:20 +0800 From: kernel test robot To: cros-kernel-buildreports@googlegroups.com Cc: oe-kbuild-all@lists.linux.dev Subject: [android-common:android15-6.6-2025-09 1/1] lib/percpu_counter.c:178:36: sparse: sparse: cast removes address space '__percpu' of expression Message-ID: <202603312007.XjsEbKEW-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: oe-kbuild-all@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: tree: https://android.googlesource.com/kernel/common android15-6.6-2025-09 head: b93ae26d721ce546bfc68d0bf0819a00ac746e7b commit: c439d5e8a0deb7310b5bb4e5f2fe47c40ff5297f [1/1] pcpcntr: add group allocation/free config: i386-randconfig-r112-20260331 (https://download.01.org/0day-ci/archive/20260331/202603312007.XjsEbKEW-lkp@intel.com/config) compiler: gcc-14 (Debian 14.2.0-19) 14.2.0 sparse: v0.6.5-rc1 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260331/202603312007.XjsEbKEW-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/202603312007.XjsEbKEW-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> lib/percpu_counter.c:178:36: sparse: sparse: cast removes address space '__percpu' of expression >> lib/percpu_counter.c:178:33: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected signed int [noderef] [usertype] __percpu *counters @@ got void * @@ lib/percpu_counter.c:178:33: sparse: expected signed int [noderef] [usertype] __percpu *counters lib/percpu_counter.c:178:33: sparse: got void * vim +/__percpu +178 lib/percpu_counter.c 153 154 int __percpu_counter_init_many(struct percpu_counter *fbc, s64 amount, 155 gfp_t gfp, u32 nr_counters, 156 struct lock_class_key *key) 157 { 158 unsigned long flags __maybe_unused; 159 size_t counter_size; 160 s32 __percpu *counters; 161 u32 i; 162 163 counter_size = ALIGN(sizeof(*counters), __alignof__(*counters)); 164 counters = __alloc_percpu_gfp(nr_counters * counter_size, 165 __alignof__(*counters), gfp); 166 if (!counters) { 167 fbc[0].counters = NULL; 168 return -ENOMEM; 169 } 170 171 for (i = 0; i < nr_counters; i++) { 172 raw_spin_lock_init(&fbc[i].lock); 173 lockdep_set_class(&fbc[i].lock, key); 174 #ifdef CONFIG_HOTPLUG_CPU 175 INIT_LIST_HEAD(&fbc[i].list); 176 #endif 177 fbc[i].count = amount; > 178 fbc[i].counters = (void *)counters + (i * counter_size); 179 180 debug_percpu_counter_activate(&fbc[i]); 181 } 182 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki