tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: f1418110051edb8e47923b009bbd051f7c06ad1a commit: d97bc9c8827bb5cd9f66dab10e0b505a879256e2 [3098/3098] bpf-rvi: Add bpf_mem_{file_{hugepage,pmdmapped},kreclaimable} kfunc config: x86_64-randconfig-001-20251104 (https://download.01.org/0day-ci/archive/20251105/202511051134.JuwQrZOr-lkp@i...) compiler: gcc-14 (Debian 14.2.0-19) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251105/202511051134.JuwQrZOr-lkp@i...) 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 <lkp@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202511051134.JuwQrZOr-lkp@intel.com/ All warnings (new ones prefixed by >>): kernel/bpf-rvi/common_kfuncs.c:25:32: warning: no previous prototype for 'bpf_mem_cgroup_from_task' [-Wmissing-prototypes] 25 | __bpf_kfunc struct mem_cgroup *bpf_mem_cgroup_from_task(struct task_struct *p) | ^~~~~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:34:35: warning: no previous prototype for 'bpf_task_active_pid_ns' [-Wmissing-prototypes] 34 | __bpf_kfunc struct pid_namespace *bpf_task_active_pid_ns(struct task_struct *task) | ^~~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:39:17: warning: no previous prototype for 'bpf_pidns_nr_tasks' [-Wmissing-prototypes] 39 | __bpf_kfunc u64 bpf_pidns_nr_tasks(struct pid_namespace *ns) | ^~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:53:17: warning: no previous prototype for 'bpf_pidns_last_pid' [-Wmissing-prototypes] 53 | __bpf_kfunc u32 bpf_pidns_last_pid(struct pid_namespace *ns) | ^~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:82:18: warning: no previous prototype for 'bpf_si_memswinfo' [-Wmissing-prototypes] 82 | __bpf_kfunc void bpf_si_memswinfo(struct bpf_sysinfo *bsi) | ^~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:92:27: warning: no previous prototype for 'bpf_page_counter_read' [-Wmissing-prototypes] 92 | __bpf_kfunc unsigned long bpf_page_counter_read(struct page_counter *counter) | ^~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:102:18: warning: no previous prototype for 'bpf_seq_file_append' [-Wmissing-prototypes] 102 | __bpf_kfunc void bpf_seq_file_append(struct seq_file *dst, struct seq_file *src) | ^~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:116:18: warning: no previous prototype for 'bpf_get_boottime_timens' [-Wmissing-prototypes] 116 | __bpf_kfunc void bpf_get_boottime_timens(struct task_struct *tsk, struct timespec64 *boottime) | ^~~~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:122:27: warning: no previous prototype for 'bpf_get_total_forks' [-Wmissing-prototypes] 122 | __bpf_kfunc unsigned long bpf_get_total_forks(void) | ^~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:127:26: warning: no previous prototype for 'bpf_nr_running' [-Wmissing-prototypes] 127 | __bpf_kfunc unsigned int bpf_nr_running(void) | ^~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:132:32: warning: no previous prototype for 'bpf_nr_context_switches' [-Wmissing-prototypes] 132 | __bpf_kfunc unsigned long long bpf_nr_context_switches(void) | ^~~~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:137:26: warning: no previous prototype for 'bpf_nr_iowait' [-Wmissing-prototypes] 137 | __bpf_kfunc unsigned int bpf_nr_iowait(void) | ^~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:143:26: warning: no previous prototype for 'bpf_kstat_softirqs_cpu' [-Wmissing-prototypes] 143 | __bpf_kfunc unsigned int bpf_kstat_softirqs_cpu(unsigned int irq, int cpu) | ^~~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:148:27: warning: no previous prototype for 'bpf_kstat_cpu_irqs_sum' [-Wmissing-prototypes] 148 | __bpf_kfunc unsigned long bpf_kstat_cpu_irqs_sum(unsigned int cpu) | ^~~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:153:18: warning: no previous prototype for 'bpf_kcpustat_cpu_fetch' [-Wmissing-prototypes] 153 | __bpf_kfunc void bpf_kcpustat_cpu_fetch(struct kernel_cpustat *dst, int cpu) | ^~~~~~~~~~~~~~~~~~~~~~

...

kernel/bpf-rvi/common_kfuncs.c:162:27: warning: no previous prototype for 'bpf_mem_file_hugepage' [-Wmissing-prototypes] 162 | __bpf_kfunc unsigned long bpf_mem_file_hugepage(void) | ^~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:167:27: warning: no previous prototype for 'bpf_mem_file_pmdmapped' [-Wmissing-prototypes] 167 | __bpf_kfunc unsigned long bpf_mem_file_pmdmapped(void) | ^~~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:172:27: warning: no previous prototype for 'bpf_mem_kreclaimable' [-Wmissing-prototypes] 172 | __bpf_kfunc unsigned long bpf_mem_kreclaimable(void) | ^~~~~~~~~~~~~~~~~~~~

vim +/bpf_mem_file_hugepage +162 kernel/bpf-rvi/common_kfuncs.c 157 158 /* 159 * Meminfo related kfuncs 160 */ 161

162 __bpf_kfunc unsigned long bpf_mem_file_hugepage(void) 163 { 164 return global_node_page_state(NR_FILE_THPS); 165 } 166 167 __bpf_kfunc unsigned long bpf_mem_file_pmdmapped(void) 168 { 169 return global_node_page_state(NR_FILE_PMDMAPPED); 170 } 171 172 __bpf_kfunc unsigned long bpf_mem_kreclaimable(void) 173 { 174 return global_node_page_state_pages(NR_SLAB_RECLAIMABLE_B) + 175 global_node_page_state(NR_KERNEL_MISC_RECLAIMABLE); 176 } 177

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