tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 54d96ebb93c9ff0573fe16586a47778ebe26de32 commit: c4e5391b74ba345c143a4af707330ac9b33aac71 [2679/2679] bpf-rvi: Add bpf_mem_vmalloc_{used,total} kfunc config: loongarch-allmodconfig (https://download.01.org/0day-ci/archive/20250816/202508160334.oBJoPyq0-lkp@i...) compiler: clang version 19.1.7 (https://github.com/llvm/llvm-project cd708029e0b2869e80abe31ddb175f7c35361f90) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250816/202508160334.oBJoPyq0-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/202508160334.oBJoPyq0-lkp@intel.com/ All warnings (new ones prefixed by >>): | ^ | static kernel/bpf-rvi/common_kfuncs.c:141:26: warning: no previous prototype for function 'bpf_nr_iowait' [-Wmissing-prototypes] 141 | __bpf_kfunc unsigned int bpf_nr_iowait(void) | ^ kernel/bpf-rvi/common_kfuncs.c:141:13: note: declare 'static' if the function is not intended to be used outside of this translation unit 141 | __bpf_kfunc unsigned int bpf_nr_iowait(void) | ^ | static kernel/bpf-rvi/common_kfuncs.c:147:26: warning: no previous prototype for function 'bpf_kstat_softirqs_cpu' [-Wmissing-prototypes] 147 | __bpf_kfunc unsigned int bpf_kstat_softirqs_cpu(unsigned int irq, int cpu) | ^ kernel/bpf-rvi/common_kfuncs.c:147:13: note: declare 'static' if the function is not intended to be used outside of this translation unit 147 | __bpf_kfunc unsigned int bpf_kstat_softirqs_cpu(unsigned int irq, int cpu) | ^ | static kernel/bpf-rvi/common_kfuncs.c:152:27: warning: no previous prototype for function 'bpf_kstat_cpu_irqs_sum' [-Wmissing-prototypes] 152 | __bpf_kfunc unsigned long bpf_kstat_cpu_irqs_sum(unsigned int cpu) | ^ kernel/bpf-rvi/common_kfuncs.c:152:13: note: declare 'static' if the function is not intended to be used outside of this translation unit 152 | __bpf_kfunc unsigned long bpf_kstat_cpu_irqs_sum(unsigned int cpu) | ^ | static kernel/bpf-rvi/common_kfuncs.c:157:18: warning: no previous prototype for function 'bpf_kcpustat_cpu_fetch' [-Wmissing-prototypes] 157 | __bpf_kfunc void bpf_kcpustat_cpu_fetch(struct kernel_cpustat *dst, int cpu) | ^ kernel/bpf-rvi/common_kfuncs.c:157:13: note: declare 'static' if the function is not intended to be used outside of this translation unit 157 | __bpf_kfunc void bpf_kcpustat_cpu_fetch(struct kernel_cpustat *dst, int cpu) | ^ | static kernel/bpf-rvi/common_kfuncs.c:166:27: warning: no previous prototype for function 'bpf_mem_file_hugepage' [-Wmissing-prototypes] 166 | __bpf_kfunc unsigned long bpf_mem_file_hugepage(void) | ^ kernel/bpf-rvi/common_kfuncs.c:166:13: note: declare 'static' if the function is not intended to be used outside of this translation unit 166 | __bpf_kfunc unsigned long bpf_mem_file_hugepage(void) | ^ | static kernel/bpf-rvi/common_kfuncs.c:171:27: warning: no previous prototype for function 'bpf_mem_file_pmdmapped' [-Wmissing-prototypes] 171 | __bpf_kfunc unsigned long bpf_mem_file_pmdmapped(void) | ^ kernel/bpf-rvi/common_kfuncs.c:171:13: note: declare 'static' if the function is not intended to be used outside of this translation unit 171 | __bpf_kfunc unsigned long bpf_mem_file_pmdmapped(void) | ^ | static kernel/bpf-rvi/common_kfuncs.c:176:27: warning: no previous prototype for function 'bpf_mem_kreclaimable' [-Wmissing-prototypes] 176 | __bpf_kfunc unsigned long bpf_mem_kreclaimable(void) | ^ kernel/bpf-rvi/common_kfuncs.c:176:13: note: declare 'static' if the function is not intended to be used outside of this translation unit 176 | __bpf_kfunc unsigned long bpf_mem_kreclaimable(void) | ^ | static kernel/bpf-rvi/common_kfuncs.c:182:27: warning: no previous prototype for function 'bpf_mem_totalcma' [-Wmissing-prototypes] 182 | __bpf_kfunc unsigned long bpf_mem_totalcma(void) | ^ kernel/bpf-rvi/common_kfuncs.c:182:13: note: declare 'static' if the function is not intended to be used outside of this translation unit 182 | __bpf_kfunc unsigned long bpf_mem_totalcma(void) | ^ | static kernel/bpf-rvi/common_kfuncs.c:187:27: warning: no previous prototype for function 'bpf_mem_freecma' [-Wmissing-prototypes] 187 | __bpf_kfunc unsigned long bpf_mem_freecma(void) | ^ kernel/bpf-rvi/common_kfuncs.c:187:13: note: declare 'static' if the function is not intended to be used outside of this translation unit 187 | __bpf_kfunc unsigned long bpf_mem_freecma(void) | ^ | static kernel/bpf-rvi/common_kfuncs.c:202:17: warning: no previous prototype for function 'bpf_hugetlb_report_meminfo' [-Wmissing-prototypes] 202 | __bpf_kfunc int bpf_hugetlb_report_meminfo(struct bpf_mem_hugepage *hugepage_info) | ^ kernel/bpf-rvi/common_kfuncs.c:202:13: note: declare 'static' if the function is not intended to be used outside of this translation unit 202 | __bpf_kfunc int bpf_hugetlb_report_meminfo(struct bpf_mem_hugepage *hugepage_info) | ^ | static kernel/bpf-rvi/common_kfuncs.c:240:27: warning: no previous prototype for function 'bpf_mem_failure' [-Wmissing-prototypes] 240 | __bpf_kfunc unsigned long bpf_mem_failure(void) | ^ kernel/bpf-rvi/common_kfuncs.c:240:13: note: declare 'static' if the function is not intended to be used outside of this translation unit 240 | __bpf_kfunc unsigned long bpf_mem_failure(void) | ^ | static kernel/bpf-rvi/common_kfuncs.c:246:27: warning: no previous prototype for function 'bpf_mem_percpu' [-Wmissing-prototypes] 246 | __bpf_kfunc unsigned long bpf_mem_percpu(void) | ^ kernel/bpf-rvi/common_kfuncs.c:246:13: note: declare 'static' if the function is not intended to be used outside of this translation unit 246 | __bpf_kfunc unsigned long bpf_mem_percpu(void) | ^ | static kernel/bpf-rvi/common_kfuncs.c:251:27: warning: no previous prototype for function 'bpf_mem_commit_limit' [-Wmissing-prototypes] 251 | __bpf_kfunc unsigned long bpf_mem_commit_limit(void) | ^ kernel/bpf-rvi/common_kfuncs.c:251:13: note: declare 'static' if the function is not intended to be used outside of this translation unit 251 | __bpf_kfunc unsigned long bpf_mem_commit_limit(void) | ^ | static kernel/bpf-rvi/common_kfuncs.c:255:27: warning: no previous prototype for function 'bpf_mem_committed' [-Wmissing-prototypes] 255 | __bpf_kfunc unsigned long bpf_mem_committed(void) | ^ kernel/bpf-rvi/common_kfuncs.c:255:13: note: declare 'static' if the function is not intended to be used outside of this translation unit 255 | __bpf_kfunc unsigned long bpf_mem_committed(void) | ^ | static

...

kernel/bpf-rvi/common_kfuncs.c:260:27: warning: no previous prototype for function 'bpf_mem_vmalloc_used' [-Wmissing-prototypes] 260 | __bpf_kfunc unsigned long bpf_mem_vmalloc_used(void) | ^ kernel/bpf-rvi/common_kfuncs.c:260:13: note: declare 'static' if the function is not intended to be used outside of this translation unit 260 | __bpf_kfunc unsigned long bpf_mem_vmalloc_used(void) | ^ | static kernel/bpf-rvi/common_kfuncs.c:265:27: warning: no previous prototype for function 'bpf_mem_vmalloc_total' [-Wmissing-prototypes] 265 | __bpf_kfunc unsigned long bpf_mem_vmalloc_total(void) | ^ kernel/bpf-rvi/common_kfuncs.c:265:13: note: declare 'static' if the function is not intended to be used outside of this translation unit 265 | __bpf_kfunc unsigned long bpf_mem_vmalloc_total(void) | ^ | static 27 warnings generated.

vim +/bpf_mem_vmalloc_used +260 kernel/bpf-rvi/common_kfuncs.c 259

260 __bpf_kfunc unsigned long bpf_mem_vmalloc_used(void) 261 { 262 return vmalloc_nr_pages(); 263 } 264 265 __bpf_kfunc unsigned long bpf_mem_vmalloc_total(void) 266 { 267 return (unsigned long)VMALLOC_TOTAL >> 10; 268 } 269

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