Messages in this thread | | | Date | Tue, 10 May 2022 20:00:51 +0800 | From | kernel test robot <> | Subject | [yu-chen-surf:sis 1/1] kernel/sched/fair.c:9317:19: sparse: sparse: incompatible types in comparison expression (different type sizes): |
| |
tree: https://github.com/yu-chen-surf/linux.git sis head: e59a4ccc3962b54c5488c142b073dcf9b85b5843 commit: e59a4ccc3962b54c5488c142b073dcf9b85b5843 [1/1] sched/fair: Introduce SIS_UTIL to search idle CPU based on sum of util_avg config: arc-randconfig-s031-20220509 (https://download.01.org/0day-ci/archive/20220510/202205101914.mxQiTOkX-lkp@intel.com/config) compiler: arc-elf-gcc (GCC) 11.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.4-dirty # https://github.com/yu-chen-surf/linux/commit/e59a4ccc3962b54c5488c142b073dcf9b85b5843 git remote add yu-chen-surf https://github.com/yu-chen-surf/linux.git git fetch --no-tags yu-chen-surf sis git checkout e59a4ccc3962b54c5488c142b073dcf9b85b5843 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=arc SHELL=/bin/bash kernel/sched/
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
sparse warnings: (new ones prefixed by >>) kernel/sched/fair.c:918:34: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct sched_entity *se @@ got struct sched_entity [noderef] __rcu * @@ kernel/sched/fair.c:918:34: sparse: expected struct sched_entity *se kernel/sched/fair.c:918:34: sparse: got struct sched_entity [noderef] __rcu * kernel/sched/fair.c:11027:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/fair.c:11027:9: sparse: expected struct sched_domain *[assigned] sd kernel/sched/fair.c:11027:9: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/fair.c:5053:22: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/fair.c:5053:22: sparse: struct task_struct [noderef] __rcu * kernel/sched/fair.c:5053:22: sparse: struct task_struct * kernel/sched/fair.c:5834:1: sparse: sparse: symbol '__pcpu_scope_load_balance_mask' was not declared. Should it be static? kernel/sched/fair.c:5835:1: sparse: sparse: symbol '__pcpu_scope_select_idle_mask' was not declared. Should it be static? kernel/sched/fair.c:6817:20: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/fair.c:6817:20: sparse: expected struct sched_domain *[assigned] sd kernel/sched/fair.c:6817:20: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/fair.c:6951:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] tmp @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/fair.c:6951:9: sparse: expected struct sched_domain *[assigned] tmp kernel/sched/fair.c:6951:9: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/fair.c:7149:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/fair.c:7149:38: sparse: expected struct task_struct *curr kernel/sched/fair.c:7149:38: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/fair.c:7447:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct task_struct *curr @@ got struct task_struct [noderef] __rcu *curr @@ kernel/sched/fair.c:7447:38: sparse: expected struct task_struct *curr kernel/sched/fair.c:7447:38: sparse: got struct task_struct [noderef] __rcu *curr kernel/sched/fair.c:8432:40: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct sched_domain *child @@ got struct sched_domain [noderef] __rcu *child @@ kernel/sched/fair.c:8432:40: sparse: expected struct sched_domain *child kernel/sched/fair.c:8432:40: sparse: got struct sched_domain [noderef] __rcu *child kernel/sched/fair.c:8976:22: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/fair.c:8976:22: sparse: struct task_struct [noderef] __rcu * kernel/sched/fair.c:8976:22: sparse: struct task_struct * kernel/sched/fair.c:10302:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/fair.c:10302:9: sparse: expected struct sched_domain *[assigned] sd kernel/sched/fair.c:10302:9: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/fair.c:9962:44: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct sched_domain *sd_parent @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/fair.c:9962:44: sparse: expected struct sched_domain *sd_parent kernel/sched/fair.c:9962:44: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/fair.c:10398:9: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct sched_domain *[assigned] sd @@ got struct sched_domain [noderef] __rcu *parent @@ kernel/sched/fair.c:10398:9: sparse: expected struct sched_domain *[assigned] sd kernel/sched/fair.c:10398:9: sparse: got struct sched_domain [noderef] __rcu *parent kernel/sched/fair.c:4693:31: sparse: sparse: marked inline, but without a definition kernel/sched/fair.c: note: in included file: kernel/sched/sched.h:2169:9: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2169:9: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2169:9: sparse: struct task_struct * >> kernel/sched/fair.c:9317:19: sparse: sparse: incompatible types in comparison expression (different type sizes): >> kernel/sched/fair.c:9317:19: sparse: int * >> kernel/sched/fair.c:9317:19: sparse: long * kernel/sched/sched.h:2011:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2011:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2011:25: sparse: struct task_struct * kernel/sched/sched.h:2011:25: sparse: sparse: incompatible types in comparison expression (different address spaces): kernel/sched/sched.h:2011:25: sparse: struct task_struct [noderef] __rcu * kernel/sched/sched.h:2011:25: sparse: struct task_struct *
vim +9317 kernel/sched/fair.c
9267 9268 static inline void update_idle_cpu_scan(struct lb_env *env, 9269 unsigned long sum_util) 9270 { 9271 struct sched_domain_shared *sd_share; 9272 int nr_scan, nr_llc, x, y; 9273 9274 if (!sched_feat(SIS_UTIL)) 9275 return; 9276 /* 9277 * Update the number of CPUs to scan in LLC domain, which could 9278 * be used as a hint in select_idle_cpu(). The update of this hint 9279 * occurs during periodic load balancing, rather than frequent 9280 * newidle balance. 9281 */ 9282 nr_llc = per_cpu(sd_llc_size, env->dst_cpu); 9283 if (env->idle == CPU_NEWLY_IDLE || 9284 env->sd->span_weight != nr_llc) 9285 return; 9286 9287 sd_share = rcu_dereference(per_cpu(sd_llc_shared, env->dst_cpu)); 9288 if (!sd_share) 9289 return; 9290 9291 /* 9292 * The number of CPUs to search drops as sum_util increases, when 9293 * sum_util hits 85% or above, the scan stops. 9294 * The reason to choose 85% as the threshold is because this is the 9295 * imbalance_pct(117) when a LLC sched group is overloaded. 9296 * 9297 * let y = 1 - (x/0.85)^2 [1] 9298 * 9299 * y is the ratio of CPUs to be scanned in the LLC 9300 * domain, x is the ratio of sum_util compared to the 9301 * CPU capacity: 9302 * 9303 * x = sum_util / (nr_llc * SCHED_CAPACITY_SCALE) [2] 9304 * 9305 * Scale x by SCHED_CAPACITY_SCALE and [2] becomes: 9306 * 9307 * x = sum_util / nr_llc [3] 9308 * 9309 * and [1] becomes: 9310 * 9311 * y = (SCHED_CAPACITY_SCALE - (x*x)/740) / SCHED_CAPACITY_SCALE [4] 9312 * 9313 * then the number of CPUs to scan is nr_scan = nr_llc * y 9314 */ 9315 x = sum_util / nr_llc; 9316 y = SCHED_CAPACITY_SCALE - (x * x) / 740; > 9317 nr_scan = max(0, nr_llc * y / SCHED_CAPACITY_SCALE); 9318 WRITE_ONCE(sd_share->nr_idle_scan, nr_scan); 9319 } 9320
-- 0-DAY CI Kernel Test Service https://01.org/lkp
| |