Messages in this thread | | | Date | Thu, 6 Jan 2022 10:02:23 +0800 | From | kernel test robot <> | Subject | [bigeasy-staging:memcg 5/5] mm/memcontrol.c:2133:2: warning: #warning Optimisation in place |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/bigeasy/staging.git memcg head: 47e47279015085e921d201c2d7f46f138c55d6f0 commit: 47e47279015085e921d201c2d7f46f138c55d6f0 [5/5] memcg: Kind of micro benchmark. config: m68k-randconfig-r014-20220105 (https://download.01.org/0day-ci/archive/20220106/202201060957.kIjdfilS-lkp@intel.com/config) compiler: m68k-linux-gcc (GCC) 11.2.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://git.kernel.org/pub/scm/linux/kernel/git/bigeasy/staging.git/commit/?id=47e47279015085e921d201c2d7f46f138c55d6f0 git remote add bigeasy-staging https://git.kernel.org/pub/scm/linux/kernel/git/bigeasy/staging.git git fetch --no-tags bigeasy-staging memcg git checkout 47e47279015085e921d201c2d7f46f138c55d6f0 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=m68k SHELL=/bin/bash
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
>> mm/memcontrol.c:2133:2: warning: #warning Optimisation in place [-Wcpp] 2133 | #warning Optimisation in place | ^~~~~~~
vim +2133 mm/memcontrol.c
2126 2127 struct memcg_stock_pcp { 2128 /* Protects memcg_stock_pcp */ 2129 local_lock_t stock_lock; 2130 struct mem_cgroup *cached; /* this never be root cgroup */ 2131 unsigned int nr_pages; 2132 #ifndef DO_NO_OPTIMISATION > 2133 #warning Optimisation in place 2134 /* Protects only task_obj */ 2135 local_lock_t task_obj_lock; 2136 struct obj_stock task_obj; 2137 #endif 2138 struct obj_stock irq_obj; 2139 2140 struct work_struct work; 2141 unsigned long flags; 2142 #define FLUSHING_CACHED_CHARGE 0 2143 }; 2144 static DEFINE_PER_CPU(struct memcg_stock_pcp, memcg_stock) = { 2145 .stock_lock = INIT_LOCAL_LOCK(stock_lock), 2146 #ifndef DO_NO_OPTIMISATION 2147 .task_obj_lock = INIT_LOCAL_LOCK(task_obj_lock), 2148 #endif 2149 }; 2150 static DEFINE_MUTEX(percpu_charge_mutex); 2151
--- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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