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7 months, 1 week
kernel/module.c:4213:6: warning: no previous prototype for function 'match_address_layout'
by kernel test robot
tree: https://github.com/0day-ci/linux/commits/UPDATE-20220208-194118/Vimal-Agr...
head: 8e6e1487d86e7fe625a0c64a5c3f4c6fc6a58a48
commit: 8e6e1487d86e7fe625a0c64a5c3f4c6fc6a58a48 modules: add heuristic when stripping unneeded symbols
date: 6 hours ago
config: s390-randconfig-r044-20220208 (https://download.01.org/0day-ci/archive/20220209/202202090113.JTGTQqUD-lk...)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project e8bff9ae54a55b4dbfeb6ba55f723abbd81bf494)
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
# install s390 cross compiling tool for clang build
# apt-get install binutils-s390x-linux-gnu
# https://github.com/0day-ci/linux/commit/8e6e1487d86e7fe625a0c64a5c3f4c6fc...
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review UPDATE-20220208-194118/Vimal-Agrawal/kernel-module-c-heuristic-enhancement-when-INSTALL_MOD_STRIP-strip-unneeded-is-used/20211222-212507
git checkout 8e6e1487d86e7fe625a0c64a5c3f4c6fc6a58a48
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
All warnings (new ones prefixed by >>):
>> kernel/module.c:4213:6: warning: no previous prototype for function 'match_address_layout' [-Wmissing-prototypes]
bool match_address_layout(struct module *mod, unsigned long addr, bool init)
^
kernel/module.c:4213:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
bool match_address_layout(struct module *mod, unsigned long addr, bool init)
^
static
1 warning generated.
vim +/match_address_layout +4213 kernel/module.c
4207
4208 /*
4209 * Check if module address (addr) passed is as per init passed
4210 * if init is true then check in init layout
4211 * else check in core layout
4212 */
> 4213 bool match_address_layout(struct module *mod, unsigned long addr, bool init)
4214 {
4215 if (init)
4216 return within_module_init(addr, mod);
4217 else
4218 return within_module_core(addr, mod);
4219 }
4220
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
7 months, 1 week
Re: [RFC PATCH -V2] NUMA balancing: fix NUMA topology for systems with CPU-less nodes
by kernel test robot
Hi Huang,
[FYI, it's a private test report for your RFC patch.]
[auto build test ERROR on tip/sched/core]
[also build test ERROR on linux/master linus/master v5.17-rc3 next-20220208]
[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]
url: https://github.com/0day-ci/linux/commits/Huang-Ying/NUMA-balancing-fix-NU...
base: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git c8eaf6ac76f40f6c59fc7d056e2e08c4a57ea9c7
config: hexagon-randconfig-r045-20220208 (https://download.01.org/0day-ci/archive/20220209/202202090152.0LoawqhI-lk...)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project e8bff9ae54a55b4dbfeb6ba55f723abbd81bf494)
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://github.com/0day-ci/linux/commit/ed82092e509333870d756fc8e53d81688...
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Huang-Ying/NUMA-balancing-fix-NUMA-topology-for-systems-with-CPU-less-nodes/20220208-212402
git checkout ed82092e509333870d756fc8e53d816885922fc4
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash kernel/sched/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
All errors (new ones prefixed by >>):
kernel/sched/core.c:3454:6: warning: no previous prototype for function 'sched_set_stop_task' [-Wmissing-prototypes]
void sched_set_stop_task(int cpu, struct task_struct *stop)
^
kernel/sched/core.c:3454:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void sched_set_stop_task(int cpu, struct task_struct *stop)
^
static
>> kernel/sched/core.c:9055:3: error: implicit declaration of function 'sched_reinit_numa' [-Werror,-Wimplicit-function-declaration]
sched_reinit_numa(true, cpu);
^
kernel/sched/core.c:9055:3: note: did you mean 'sched_init_numa'?
kernel/sched/sched.h:1671:20: note: 'sched_init_numa' declared here
static inline void sched_init_numa(void) { }
^
kernel/sched/core.c:9134:2: error: implicit declaration of function 'sched_reinit_numa' [-Werror,-Wimplicit-function-declaration]
sched_reinit_numa(false, cpu);
^
>> kernel/sched/core.c:9241:18: error: too many arguments to function call, expected 0, have 1
sched_init_numa(NUMA_NO_NODE);
~~~~~~~~~~~~~~~ ^~~~~~~~~~~~
include/linux/numa.h:14:22: note: expanded from macro 'NUMA_NO_NODE'
#define NUMA_NO_NODE (-1)
^~~~
kernel/sched/sched.h:1671:20: note: 'sched_init_numa' declared here
static inline void sched_init_numa(void) { }
^
1 warning and 3 errors generated.
vim +/sched_reinit_numa +9055 kernel/sched/core.c
9033
9034 int sched_cpu_activate(unsigned int cpu)
9035 {
9036 struct rq *rq = cpu_rq(cpu);
9037 struct rq_flags rf;
9038
9039 /*
9040 * Clear the balance_push callback and prepare to schedule
9041 * regular tasks.
9042 */
9043 balance_push_set(cpu, false);
9044
9045 #ifdef CONFIG_SCHED_SMT
9046 /*
9047 * When going up, increment the number of cores with SMT present.
9048 */
9049 if (cpumask_weight(cpu_smt_mask(cpu)) == 2)
9050 static_branch_inc_cpuslocked(&sched_smt_present);
9051 #endif
9052 set_cpu_active(cpu, true);
9053
9054 if (sched_smp_initialized) {
> 9055 sched_reinit_numa(true, cpu);
9056 sched_domains_numa_masks_set(cpu);
9057 cpuset_cpu_active();
9058 }
9059
9060 /*
9061 * Put the rq online, if not already. This happens:
9062 *
9063 * 1) In the early boot process, because we build the real domains
9064 * after all CPUs have been brought up.
9065 *
9066 * 2) At runtime, if cpuset_cpu_active() fails to rebuild the
9067 * domains.
9068 */
9069 rq_lock_irqsave(rq, &rf);
9070 if (rq->rd) {
9071 BUG_ON(!cpumask_test_cpu(cpu, rq->rd->span));
9072 set_rq_online(rq);
9073 }
9074 rq_unlock_irqrestore(rq, &rf);
9075
9076 return 0;
9077 }
9078
9079 int sched_cpu_deactivate(unsigned int cpu)
9080 {
9081 struct rq *rq = cpu_rq(cpu);
9082 struct rq_flags rf;
9083 int ret;
9084
9085 /*
9086 * Remove CPU from nohz.idle_cpus_mask to prevent participating in
9087 * load balancing when not active
9088 */
9089 nohz_balance_exit_idle(rq);
9090
9091 set_cpu_active(cpu, false);
9092
9093 /*
9094 * From this point forward, this CPU will refuse to run any task that
9095 * is not: migrate_disable() or KTHREAD_IS_PER_CPU, and will actively
9096 * push those tasks away until this gets cleared, see
9097 * sched_cpu_dying().
9098 */
9099 balance_push_set(cpu, true);
9100
9101 /*
9102 * We've cleared cpu_active_mask / set balance_push, wait for all
9103 * preempt-disabled and RCU users of this state to go away such that
9104 * all new such users will observe it.
9105 *
9106 * Specifically, we rely on ttwu to no longer target this CPU, see
9107 * ttwu_queue_cond() and is_cpu_allowed().
9108 *
9109 * Do sync before park smpboot threads to take care the rcu boost case.
9110 */
9111 synchronize_rcu();
9112
9113 rq_lock_irqsave(rq, &rf);
9114 if (rq->rd) {
9115 update_rq_clock(rq);
9116 BUG_ON(!cpumask_test_cpu(cpu, rq->rd->span));
9117 set_rq_offline(rq);
9118 }
9119 rq_unlock_irqrestore(rq, &rf);
9120
9121 #ifdef CONFIG_SCHED_SMT
9122 /*
9123 * When going down, decrement the number of cores with SMT present.
9124 */
9125 if (cpumask_weight(cpu_smt_mask(cpu)) == 2)
9126 static_branch_dec_cpuslocked(&sched_smt_present);
9127
9128 sched_core_cpu_deactivate(cpu);
9129 #endif
9130
9131 if (!sched_smp_initialized)
9132 return 0;
9133
9134 sched_reinit_numa(false, cpu);
9135 ret = cpuset_cpu_inactive(cpu);
9136 if (ret) {
9137 balance_push_set(cpu, false);
9138 set_cpu_active(cpu, true);
9139 return ret;
9140 }
9141 sched_domains_numa_masks_clear(cpu);
9142 return 0;
9143 }
9144
9145 static void sched_rq_cpu_starting(unsigned int cpu)
9146 {
9147 struct rq *rq = cpu_rq(cpu);
9148
9149 rq->calc_load_update = calc_load_update;
9150 update_max_interval();
9151 }
9152
9153 int sched_cpu_starting(unsigned int cpu)
9154 {
9155 sched_core_cpu_starting(cpu);
9156 sched_rq_cpu_starting(cpu);
9157 sched_tick_start(cpu);
9158 return 0;
9159 }
9160
9161 #ifdef CONFIG_HOTPLUG_CPU
9162
9163 /*
9164 * Invoked immediately before the stopper thread is invoked to bring the
9165 * CPU down completely. At this point all per CPU kthreads except the
9166 * hotplug thread (current) and the stopper thread (inactive) have been
9167 * either parked or have been unbound from the outgoing CPU. Ensure that
9168 * any of those which might be on the way out are gone.
9169 *
9170 * If after this point a bound task is being woken on this CPU then the
9171 * responsible hotplug callback has failed to do it's job.
9172 * sched_cpu_dying() will catch it with the appropriate fireworks.
9173 */
9174 int sched_cpu_wait_empty(unsigned int cpu)
9175 {
9176 balance_hotplug_wait();
9177 return 0;
9178 }
9179
9180 /*
9181 * Since this CPU is going 'away' for a while, fold any nr_active delta we
9182 * might have. Called from the CPU stopper task after ensuring that the
9183 * stopper is the last running task on the CPU, so nr_active count is
9184 * stable. We need to take the teardown thread which is calling this into
9185 * account, so we hand in adjust = 1 to the load calculation.
9186 *
9187 * Also see the comment "Global load-average calculations".
9188 */
9189 static void calc_load_migrate(struct rq *rq)
9190 {
9191 long delta = calc_load_fold_active(rq, 1);
9192
9193 if (delta)
9194 atomic_long_add(delta, &calc_load_tasks);
9195 }
9196
9197 static void dump_rq_tasks(struct rq *rq, const char *loglvl)
9198 {
9199 struct task_struct *g, *p;
9200 int cpu = cpu_of(rq);
9201
9202 lockdep_assert_rq_held(rq);
9203
9204 printk("%sCPU%d enqueued tasks (%u total):\n", loglvl, cpu, rq->nr_running);
9205 for_each_process_thread(g, p) {
9206 if (task_cpu(p) != cpu)
9207 continue;
9208
9209 if (!task_on_rq_queued(p))
9210 continue;
9211
9212 printk("%s\tpid: %d, name: %s\n", loglvl, p->pid, p->comm);
9213 }
9214 }
9215
9216 int sched_cpu_dying(unsigned int cpu)
9217 {
9218 struct rq *rq = cpu_rq(cpu);
9219 struct rq_flags rf;
9220
9221 /* Handle pending wakeups and then migrate everything off */
9222 sched_tick_stop(cpu);
9223
9224 rq_lock_irqsave(rq, &rf);
9225 if (rq->nr_running != 1 || rq_has_pinned_tasks(rq)) {
9226 WARN(true, "Dying CPU not properly vacated!");
9227 dump_rq_tasks(rq, KERN_WARNING);
9228 }
9229 rq_unlock_irqrestore(rq, &rf);
9230
9231 calc_load_migrate(rq);
9232 update_max_interval();
9233 hrtick_clear(rq);
9234 sched_core_cpu_dying(cpu);
9235 return 0;
9236 }
9237 #endif
9238
9239 void __init sched_init_smp(void)
9240 {
> 9241 sched_init_numa(NUMA_NO_NODE);
9242
9243 /*
9244 * There's no userspace yet to cause hotplug operations; hence all the
9245 * CPU masks are stable and all blatant races in the below code cannot
9246 * happen.
9247 */
9248 mutex_lock(&sched_domains_mutex);
9249 sched_init_domains(cpu_active_mask);
9250 mutex_unlock(&sched_domains_mutex);
9251
9252 /* Move init over to a non-isolated CPU */
9253 if (set_cpus_allowed_ptr(current, housekeeping_cpumask(HK_FLAG_DOMAIN)) < 0)
9254 BUG();
9255 current->flags &= ~PF_NO_SETAFFINITY;
9256 sched_init_granularity();
9257
9258 init_sched_rt_class();
9259 init_sched_dl_class();
9260
9261 sched_smp_initialized = true;
9262 }
9263
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
7 months, 1 week
Re: [RFC PATCH -V2] NUMA balancing: fix NUMA topology for systems with CPU-less nodes
by kernel test robot
Hi Huang,
[FYI, it's a private test report for your RFC patch.]
[auto build test ERROR on tip/sched/core]
[also build test ERROR on linux/master linus/master v5.17-rc3 next-20220208]
[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]
url: https://github.com/0day-ci/linux/commits/Huang-Ying/NUMA-balancing-fix-NU...
base: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git c8eaf6ac76f40f6c59fc7d056e2e08c4a57ea9c7
config: arc-randconfig-r035-20220208 (https://download.01.org/0day-ci/archive/20220209/202202090047.ctMW1o2G-lk...)
compiler: arceb-elf-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://github.com/0day-ci/linux/commit/ed82092e509333870d756fc8e53d81688...
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Huang-Ying/NUMA-balancing-fix-NUMA-topology-for-systems-with-CPU-less-nodes/20220208-212402
git checkout ed82092e509333870d756fc8e53d816885922fc4
# 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=arc SHELL=/bin/bash
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
All errors (new ones prefixed by >>):
kernel/sched/core.c:3454:6: warning: no previous prototype for 'sched_set_stop_task' [-Wmissing-prototypes]
3454 | void sched_set_stop_task(int cpu, struct task_struct *stop)
| ^~~~~~~~~~~~~~~~~~~
kernel/sched/core.c: In function 'sched_cpu_activate':
>> kernel/sched/core.c:9055:17: error: implicit declaration of function 'sched_reinit_numa'; did you mean 'sched_init_numa'? [-Werror=implicit-function-declaration]
9055 | sched_reinit_numa(true, cpu);
| ^~~~~~~~~~~~~~~~~
| sched_init_numa
kernel/sched/core.c: In function 'sched_init_smp':
>> kernel/sched/core.c:9241:9: error: too many arguments to function 'sched_init_numa'
9241 | sched_init_numa(NUMA_NO_NODE);
| ^~~~~~~~~~~~~~~
In file included from kernel/sched/core.c:13:
kernel/sched/sched.h:1671:20: note: declared here
1671 | static inline void sched_init_numa(void) { }
| ^~~~~~~~~~~~~~~
cc1: some warnings being treated as errors
vim +9055 kernel/sched/core.c
9033
9034 int sched_cpu_activate(unsigned int cpu)
9035 {
9036 struct rq *rq = cpu_rq(cpu);
9037 struct rq_flags rf;
9038
9039 /*
9040 * Clear the balance_push callback and prepare to schedule
9041 * regular tasks.
9042 */
9043 balance_push_set(cpu, false);
9044
9045 #ifdef CONFIG_SCHED_SMT
9046 /*
9047 * When going up, increment the number of cores with SMT present.
9048 */
9049 if (cpumask_weight(cpu_smt_mask(cpu)) == 2)
9050 static_branch_inc_cpuslocked(&sched_smt_present);
9051 #endif
9052 set_cpu_active(cpu, true);
9053
9054 if (sched_smp_initialized) {
> 9055 sched_reinit_numa(true, cpu);
9056 sched_domains_numa_masks_set(cpu);
9057 cpuset_cpu_active();
9058 }
9059
9060 /*
9061 * Put the rq online, if not already. This happens:
9062 *
9063 * 1) In the early boot process, because we build the real domains
9064 * after all CPUs have been brought up.
9065 *
9066 * 2) At runtime, if cpuset_cpu_active() fails to rebuild the
9067 * domains.
9068 */
9069 rq_lock_irqsave(rq, &rf);
9070 if (rq->rd) {
9071 BUG_ON(!cpumask_test_cpu(cpu, rq->rd->span));
9072 set_rq_online(rq);
9073 }
9074 rq_unlock_irqrestore(rq, &rf);
9075
9076 return 0;
9077 }
9078
9079 int sched_cpu_deactivate(unsigned int cpu)
9080 {
9081 struct rq *rq = cpu_rq(cpu);
9082 struct rq_flags rf;
9083 int ret;
9084
9085 /*
9086 * Remove CPU from nohz.idle_cpus_mask to prevent participating in
9087 * load balancing when not active
9088 */
9089 nohz_balance_exit_idle(rq);
9090
9091 set_cpu_active(cpu, false);
9092
9093 /*
9094 * From this point forward, this CPU will refuse to run any task that
9095 * is not: migrate_disable() or KTHREAD_IS_PER_CPU, and will actively
9096 * push those tasks away until this gets cleared, see
9097 * sched_cpu_dying().
9098 */
9099 balance_push_set(cpu, true);
9100
9101 /*
9102 * We've cleared cpu_active_mask / set balance_push, wait for all
9103 * preempt-disabled and RCU users of this state to go away such that
9104 * all new such users will observe it.
9105 *
9106 * Specifically, we rely on ttwu to no longer target this CPU, see
9107 * ttwu_queue_cond() and is_cpu_allowed().
9108 *
9109 * Do sync before park smpboot threads to take care the rcu boost case.
9110 */
9111 synchronize_rcu();
9112
9113 rq_lock_irqsave(rq, &rf);
9114 if (rq->rd) {
9115 update_rq_clock(rq);
9116 BUG_ON(!cpumask_test_cpu(cpu, rq->rd->span));
9117 set_rq_offline(rq);
9118 }
9119 rq_unlock_irqrestore(rq, &rf);
9120
9121 #ifdef CONFIG_SCHED_SMT
9122 /*
9123 * When going down, decrement the number of cores with SMT present.
9124 */
9125 if (cpumask_weight(cpu_smt_mask(cpu)) == 2)
9126 static_branch_dec_cpuslocked(&sched_smt_present);
9127
9128 sched_core_cpu_deactivate(cpu);
9129 #endif
9130
9131 if (!sched_smp_initialized)
9132 return 0;
9133
9134 sched_reinit_numa(false, cpu);
9135 ret = cpuset_cpu_inactive(cpu);
9136 if (ret) {
9137 balance_push_set(cpu, false);
9138 set_cpu_active(cpu, true);
9139 return ret;
9140 }
9141 sched_domains_numa_masks_clear(cpu);
9142 return 0;
9143 }
9144
9145 static void sched_rq_cpu_starting(unsigned int cpu)
9146 {
9147 struct rq *rq = cpu_rq(cpu);
9148
9149 rq->calc_load_update = calc_load_update;
9150 update_max_interval();
9151 }
9152
9153 int sched_cpu_starting(unsigned int cpu)
9154 {
9155 sched_core_cpu_starting(cpu);
9156 sched_rq_cpu_starting(cpu);
9157 sched_tick_start(cpu);
9158 return 0;
9159 }
9160
9161 #ifdef CONFIG_HOTPLUG_CPU
9162
9163 /*
9164 * Invoked immediately before the stopper thread is invoked to bring the
9165 * CPU down completely. At this point all per CPU kthreads except the
9166 * hotplug thread (current) and the stopper thread (inactive) have been
9167 * either parked or have been unbound from the outgoing CPU. Ensure that
9168 * any of those which might be on the way out are gone.
9169 *
9170 * If after this point a bound task is being woken on this CPU then the
9171 * responsible hotplug callback has failed to do it's job.
9172 * sched_cpu_dying() will catch it with the appropriate fireworks.
9173 */
9174 int sched_cpu_wait_empty(unsigned int cpu)
9175 {
9176 balance_hotplug_wait();
9177 return 0;
9178 }
9179
9180 /*
9181 * Since this CPU is going 'away' for a while, fold any nr_active delta we
9182 * might have. Called from the CPU stopper task after ensuring that the
9183 * stopper is the last running task on the CPU, so nr_active count is
9184 * stable. We need to take the teardown thread which is calling this into
9185 * account, so we hand in adjust = 1 to the load calculation.
9186 *
9187 * Also see the comment "Global load-average calculations".
9188 */
9189 static void calc_load_migrate(struct rq *rq)
9190 {
9191 long delta = calc_load_fold_active(rq, 1);
9192
9193 if (delta)
9194 atomic_long_add(delta, &calc_load_tasks);
9195 }
9196
9197 static void dump_rq_tasks(struct rq *rq, const char *loglvl)
9198 {
9199 struct task_struct *g, *p;
9200 int cpu = cpu_of(rq);
9201
9202 lockdep_assert_rq_held(rq);
9203
9204 printk("%sCPU%d enqueued tasks (%u total):\n", loglvl, cpu, rq->nr_running);
9205 for_each_process_thread(g, p) {
9206 if (task_cpu(p) != cpu)
9207 continue;
9208
9209 if (!task_on_rq_queued(p))
9210 continue;
9211
9212 printk("%s\tpid: %d, name: %s\n", loglvl, p->pid, p->comm);
9213 }
9214 }
9215
9216 int sched_cpu_dying(unsigned int cpu)
9217 {
9218 struct rq *rq = cpu_rq(cpu);
9219 struct rq_flags rf;
9220
9221 /* Handle pending wakeups and then migrate everything off */
9222 sched_tick_stop(cpu);
9223
9224 rq_lock_irqsave(rq, &rf);
9225 if (rq->nr_running != 1 || rq_has_pinned_tasks(rq)) {
9226 WARN(true, "Dying CPU not properly vacated!");
9227 dump_rq_tasks(rq, KERN_WARNING);
9228 }
9229 rq_unlock_irqrestore(rq, &rf);
9230
9231 calc_load_migrate(rq);
9232 update_max_interval();
9233 hrtick_clear(rq);
9234 sched_core_cpu_dying(cpu);
9235 return 0;
9236 }
9237 #endif
9238
9239 void __init sched_init_smp(void)
9240 {
> 9241 sched_init_numa(NUMA_NO_NODE);
9242
9243 /*
9244 * There's no userspace yet to cause hotplug operations; hence all the
9245 * CPU masks are stable and all blatant races in the below code cannot
9246 * happen.
9247 */
9248 mutex_lock(&sched_domains_mutex);
9249 sched_init_domains(cpu_active_mask);
9250 mutex_unlock(&sched_domains_mutex);
9251
9252 /* Move init over to a non-isolated CPU */
9253 if (set_cpus_allowed_ptr(current, housekeeping_cpumask(HK_FLAG_DOMAIN)) < 0)
9254 BUG();
9255 current->flags &= ~PF_NO_SETAFFINITY;
9256 sched_init_granularity();
9257
9258 init_sched_rt_class();
9259 init_sched_dl_class();
9260
9261 sched_smp_initialized = true;
9262 }
9263
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
7 months, 1 week
Re: [PATCH v2 1/2] usb: typec: tcpm: add interface for passing supported_pd_rev from tcpc_dev
by kernel test robot
Hi Potin,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on usb/usb-testing]
[also build test WARNING on v5.17-rc3 next-20220208]
[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]
url: https://github.com/0day-ci/linux/commits/Potin-Lai/usb-typec-tcpm-add-int...
base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing
config: hexagon-randconfig-r034-20220208 (https://download.01.org/0day-ci/archive/20220209/202202090006.YLbevIuT-lk...)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project e8bff9ae54a55b4dbfeb6ba55f723abbd81bf494)
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://github.com/0day-ci/linux/commit/322696594704fa918e63d1c80fa6d346a...
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Potin-Lai/usb-typec-tcpm-add-interface-for-passing-supported_pd_rev-from-tcpc_dev/20220208-202246
git checkout 322696594704fa918e63d1c80fa6d346a02e9a28
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash drivers/usb/typec/tcpm/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
All warnings (new ones prefixed by >>):
>> drivers/usb/typec/tcpm/tcpm.c:581:9: warning: comparison of distinct pointer types ('typeof (rev) *' (aka 'unsigned int *') and 'typeof (2) *' (aka 'int *')) [-Wcompare-distinct-pointer-types]
return min(rev, PD_MAX_REV);
^~~~~~~~~~~~~~~~~~~~
include/linux/minmax.h:45:19: note: expanded from macro 'min'
#define min(x, y) __careful_cmp(x, y, <)
^~~~~~~~~~~~~~~~~~~~~~
include/linux/minmax.h:36:24: note: expanded from macro '__careful_cmp'
__builtin_choose_expr(__safe_cmp(x, y), \
^~~~~~~~~~~~~~~~
include/linux/minmax.h:26:4: note: expanded from macro '__safe_cmp'
(__typecheck(x, y) && __no_side_effects(x, y))
^~~~~~~~~~~~~~~~~
include/linux/minmax.h:20:28: note: expanded from macro '__typecheck'
(!!(sizeof((typeof(x) *)1 == (typeof(y) *)1)))
~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~
1 warning generated.
vim +581 drivers/usb/typec/tcpm/tcpm.c
573
574 static u32 tcpm_pd_supported_rev(struct tcpm_port *port)
575 {
576 u32 rev = PD_MAX_REV;
577
578 if (port->tcpc->supported_pd_rev)
579 rev = port->tcpc->supported_pd_rev(port->tcpc);
580
> 581 return min(rev, PD_MAX_REV);
582 }
583
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
7 months, 1 week
Re: [PATCH bpf-next 1/5] bpf: Extend sys_bpf commands for bpf_syscall programs.
by kernel test robot
Hi Alexei,
I love your patch! Perhaps something to improve:
[auto build test WARNING on bpf-next/master]
url: https://github.com/0day-ci/linux/commits/Alexei-Starovoitov/bpf-Light-ske...
base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master
config: mips-buildonly-randconfig-r001-20220208 (https://download.01.org/0day-ci/archive/20220209/202202090005.4wGpcCXF-lk...)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project e8bff9ae54a55b4dbfeb6ba55f723abbd81bf494)
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
# install mips cross compiling tool for clang build
# apt-get install binutils-mips-linux-gnu
# https://github.com/0day-ci/linux/commit/cf2c9222692d0cb93d17ab3ff9f972b40...
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Alexei-Starovoitov/bpf-Light-skeleton-for-the-kernel/20220205-071811
git checkout cf2c9222692d0cb93d17ab3ff9f972b40a0b7864
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=mips SHELL=/bin/bash kernel/bpf/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
All warnings (new ones prefixed by >>):
>> kernel/bpf/syscall.c:4762:19: warning: unused variable 'prog'
struct bpf_prog
^
fatal error: error in backend: Nested variants found in inline asm string: ' .set push
.set mips64r2
.if ( 0x00 ) != -1)) 0x00 ) != -1)) : ($( static struct ftrace_branch_data __attribute__((__aligned__(4))) __attribute__((__section__("_ftrace_branch"))) __if_trace = $( .func = __func__, .file = "arch/mips/include/asm/atomic.h", .line = 156, $); 0x00 ) != -1)) : $))) ) && ( 0 ); .set push; .set mips64r2; .rept 1; sync 0x00; .endr; .set pop; .else; ; .endif
1: ll $1, $2 # atomic_sub_return
subu $0, $1, $3
sc $0, $2
beqz $0, 1b
subu $0, $1, $3
.set pop
'
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace, preprocessed source, and associated run script.
Stack dump:
0. Program arguments: clang -Wp,-MMD,kernel/bpf/.syscall.o.d -nostdinc -Iarch/mips/include -I./arch/mips/include/generated -Iinclude -I./include -Iarch/mips/include/uapi -I./arch/mips/include/generated/uapi -Iinclude/uapi -I./include/generated/uapi -include include/linux/compiler-version.h -include include/linux/kconfig.h -include include/linux/compiler_types.h -D__KERNEL__ -DVMLINUX_LOAD_ADDRESS=0xffffffff80060000 -DLINKER_LOAD_ADDRESS=0x80060000 -DDATAOFFSET=0 -Qunused-arguments -fmacro-prefix-map== -DKBUILD_EXTRA_WARN1 -Wall -Wundef -Werror=strict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common -fshort-wchar -fno-PIE -Werror=implicit-function-declaration -Werror=implicit-int -Werror=return-type -Wno-format-security -std=gnu89 --target=mips-linux -fintegrated-as -Werror=unknown-warning-option -Werror=ignored-optimization-argument -mno-check-zero-division -mabi=32 -G 0 -mno-abicalls -fno-pic -pipe -msoft-float -DGAS_HAS_SET_HARDFLOAT -Wa,-msoft-float -ffreestanding -EB -fno-stack-check -march=mips32r2 -Wa,--trap -DTOOLCHAIN_SUPPORTS_VIRT -Iarch/mips/include/asm/mach-ath79 -Iarch/mips/include/asm/mach-generic -fno-asynchronous-unwind-tables -fno-delete-null-pointer-checks -Wno-frame-address -Wno-address-of-packed-member -O2 -Wframe-larger-than=1024 -fno-stack-protector -Wimplicit-fallthrough -Wno-gnu -mno-global-merge -Wno-unused-but-set-variable -Wno-unused-const-variable -ftrivial-auto-var-init=zero -enable-trivial-auto-var-init-zero-knowing-it-will-be-removed-from-clang -fno-stack-clash-protection -pg -Wdeclaration-after-statement -Wvla -Wno-pointer-sign -Wcast-function-type -Wno-array-bounds -fno-strict-overflow -fno-stack-check -Werror=date-time -Werror=incompatible-pointer-types -Wextra -Wunused -Wno-unused-parameter -Wmissing-declarations -Wmissing-format-attribute -Wmissing-prototypes -Wold-style-definition -Wmissing-include-dirs -Wunused-but-set-variable -Wunused-const-variable -Wno-missing-field-initializers -Wno-sign-compare -Wno-type-limits -I kernel/bpf -I ./kernel/bpf -ffunction-sections -fdata-sections -DKBUILD_MODFILE="kernel/bpf/syscall" -DKBUILD_BASENAME="syscall" -DKBUILD_MODNAME="syscall" -D__KBUILD_MODNAME=kmod_syscall -c -o kernel/bpf/syscall.o kernel/bpf/syscall.c
1. <eof> parser at end of file
2. Code generation
3. Running pass 'Function Pass Manager' on module 'kernel/bpf/syscall.c'.
4. Running pass 'Mips Assembly Printer' on function '@bpf_map_free_deferred'
#0 0x0000564a3997132f Signals.cpp:0:0
#1 0x0000564a3996f20c llvm::sys::CleanupOnSignal(unsigned long) (/opt/cross/clang-e8bff9ae54/bin/clang-15+0x346420c)
#2 0x0000564a398af687 llvm::CrashRecoveryContext::HandleExit(int) (/opt/cross/clang-e8bff9ae54/bin/clang-15+0x33a4687)
#3 0x0000564a399678be llvm::sys::Process::Exit(int, bool) (/opt/cross/clang-e8bff9ae54/bin/clang-15+0x345c8be)
#4 0x0000564a375aee3b (/opt/cross/clang-e8bff9ae54/bin/clang-15+0x10a3e3b)
#5 0x0000564a398b613c llvm::report_fatal_error(llvm::Twine const&, bool) (/opt/cross/clang-e8bff9ae54/bin/clang-15+0x33ab13c)
#6 0x0000564a3a5a55a0 llvm::AsmPrinter::emitInlineAsm(llvm::MachineInstr const (/opt/cross/clang-e8bff9ae54/bin/clang-15+0x409a5a0)
#7 0x0000564a3a5a14d4 llvm::AsmPrinter::emitFunctionBody() (/opt/cross/clang-e8bff9ae54/bin/clang-15+0x40964d4)
#8 0x0000564a38016b57 llvm::MipsAsmPrinter::runOnMachineFunction(llvm::MachineFunction&) (/opt/cross/clang-e8bff9ae54/bin/clang-15+0x1b0bb57)
#9 0x0000564a38cc85dd llvm::MachineFunctionPass::runOnFunction(llvm::Function&) (.part.53) MachineFunctionPass.cpp:0:0
#10 0x0000564a39103d97 llvm::FPPassManager::runOnFunction(llvm::Function&) (/opt/cross/clang-e8bff9ae54/bin/clang-15+0x2bf8d97)
#11 0x0000564a39103f11 llvm::FPPassManager::runOnModule(llvm::Module&) (/opt/cross/clang-e8bff9ae54/bin/clang-15+0x2bf8f11)
#12 0x0000564a39104a8f llvm::legacy::PassManagerImpl::run(llvm::Module&) (/opt/cross/clang-e8bff9ae54/bin/clang-15+0x2bf9a8f)
#13 0x0000564a39c88ef7 clang::EmitBackendOutput(clang::DiagnosticsEngine&, clang::HeaderSearchOptions const&, clang::CodeGenOptions const&, clang::TargetOptions const&, clang::LangOptions const&, llvm::StringRef, clang::BackendAction, std::unique_ptr<llvm::raw_pwrite_stream, std::default_delete<llvm::raw_pwrite_stream> >) (/opt/cross/clang-e8bff9ae54/bin/clang-15+0x377def7)
#14 0x0000564a3a8bdb63 clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&) (/opt/cross/clang-e8bff9ae54/bin/clang-15+0x43b2b63)
#15 0x0000564a3b392e29 clang::ParseAST(clang::Sema&, bool, bool) (/opt/cross/clang-e8bff9ae54/bin/clang-15+0x4e87e29)
#16 0x0000564a3a8bc99f clang::CodeGenAction::ExecuteAction() (/opt/cross/clang-e8bff9ae54/bin/clang-15+0x43b199f)
#17 0x0000564a3a2bb1e1 clang::FrontendAction::Execute() (/opt/cross/clang-e8bff9ae54/bin/clang-15+0x3db01e1)
#18 0x0000564a3a25211a clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/cross/clang-e8bff9ae54/bin/clang-15+0x3d4711a)
#19 0x0000564a3a37f85b (/opt/cross/clang-e8bff9ae54/bin/clang-15+0x3e7485b)
#20 0x0000564a375b03ec cc1_main(llvm::ArrayRef<char char (/opt/cross/clang-e8bff9ae54/bin/clang-15+0x10a53ec)
#21 0x0000564a375ad0bb ExecuteCC1Tool(llvm::SmallVectorImpl<char driver.cpp:0:0
#22 0x0000564a3a0e9c85 void llvm::function_ref<void ()>::callback_fn<clang::driver::CC1Command::Execute(llvm::ArrayRef<llvm::Optional<llvm::StringRef> >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> const::'lambda'()>(long) Job.cpp:0:0
#23 0x0000564a398af543 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/cross/clang-e8bff9ae54/bin/clang-15+0x33a4543)
#24 0x0000564a3a0ea57e clang::driver::CC1Command::Execute(llvm::ArrayRef<llvm::Optional<llvm::StringRef> >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> const (.part.216) Job.cpp:0:0
#25 0x0000564a3a0bf177 clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const (/opt/cross/clang-e8bff9ae54/bin/clang-15+0x3bb4177)
#26 0x0000564a3a0bfb57 clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command >&) const (/opt/cross/clang-e8bff9ae54/bin/clang-15+0x3bb4b57)
#27 0x0000564a3a0c91e9 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command >&) (/opt/cross/clang-e8bff9ae54/bin/clang-15+0x3bbe1e9)
#28 0x0000564a374d626f main (/opt/cross/clang-e8bff9ae54/bin/clang-15+0xfcb26f)
#29 0x00007fa3ac551d0a __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x26d0a)
#30 0x0000564a375acbda _start (/opt/cross/clang-e8bff9ae54/bin/clang-15+0x10a1bda)
clang-15: error: clang frontend command failed with exit code 70 (use -v to see invocation)
clang version 15.0.0 (git://gitmirror/llvm_project e8bff9ae54a55b4dbfeb6ba55f723abbd81bf494)
Target: mips-unknown-linux
Thread model: posix
InstalledDir: /opt/cross/clang-e8bff9ae54/bin
clang-15: note: diagnostic msg:
Makefile arch include kernel nr_bisected scripts source usr
vim +/prog +4762 kernel/bpf/syscall.c
4759
4760 BPF_CALL_3(bpf_sys_bpf, int, cmd, union bpf_attr *, attr, u32, attr_size)
4761 {
> 4762 struct bpf_prog *prog;
4763
4764 switch (cmd) {
4765 case BPF_MAP_CREATE:
4766 case BPF_MAP_UPDATE_ELEM:
4767 case BPF_MAP_FREEZE:
4768 case BPF_PROG_LOAD:
4769 case BPF_BTF_LOAD:
4770 case BPF_LINK_CREATE:
4771 case BPF_RAW_TRACEPOINT_OPEN:
4772 break;
4773 #ifdef CONFIG_BPF_JIT /* __bpf_prog_enter_sleepable used by trampoline and JIT */
4774 case BPF_PROG_TEST_RUN:
4775 if (attr->test.data_in || attr->test.data_out ||
4776 attr->test.ctx_out || attr->test.duration ||
4777 attr->test.repeat || attr->test.flags)
4778 return -EINVAL;
4779
4780 prog = bpf_prog_get_type(attr->test.prog_fd, BPF_PROG_TYPE_SYSCALL);
4781 if (IS_ERR(prog))
4782 return PTR_ERR(prog);
4783
4784 if (attr->test.ctx_size_in < prog->aux->max_ctx_offset ||
4785 attr->test.ctx_size_in > U16_MAX) {
4786 bpf_prog_put(prog);
4787 return -EINVAL;
4788 }
4789
4790 if (!__bpf_prog_enter_sleepable(prog)) {
4791 /* recursion detected */
4792 bpf_prog_put(prog);
4793 return -EBUSY;
4794 }
4795 attr->test.retval = bpf_prog_run(prog, (void *) (long) attr->test.ctx_in);
4796 __bpf_prog_exit_sleepable(prog, 0 /* bpf_prog_run does runtime stats */);
4797 bpf_prog_put(prog);
4798 return 0;
4799 #endif
4800 default:
4801 return -EINVAL;
4802 }
4803 return __sys_bpf(cmd, KERNEL_BPFPTR(attr), attr_size);
4804 }
4805 EXPORT_SYMBOL(bpf_sys_bpf);
4806
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
7 months, 1 week
