Hi Yafang, Thank you for the patch! Yet something to improve: [auto build test ERROR on bpf-next/master] url: https://github.com/intel-lab-lkp/linux/commits/Yafang-Shao/bpf-add-new-map-ops-map_mem_usage/20230222-094856 base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master patch link: https://lore.kernel.org/r/20230222014553.47744-18-laoar.shao%40gmail.com patch subject: [PATCH bpf-next v2 17/18] bpf: offload map memory usage config: um-x86_64_defconfig (https://download.01.org/0day-ci/archive/20230222/202302221852.mOd5T9T6-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.3.0-8) 11.3.0 reproduce (this is a W=1 build): # https://github.com/intel-lab-lkp/linux/commit/e5742e839659b59ea26bc7a5804d04e577604aab git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Yafang-Shao/bpf-add-new-map-ops-map_mem_usage/20230222-094856 git checkout e5742e839659b59ea26bc7a5804d04e577604aab # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=um SUBARCH=x86_64 olddefconfig make W=1 O=build_dir ARCH=um SUBARCH=x86_64 SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202302221852.mOd5T9T6-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): In file included from kernel/fork.c:98: >> include/linux/bpf.h:2644:1: error: expected identifier or '(' before '{' token 2644 | { | ^ kernel/fork.c:162:13: warning: no previous prototype for 'arch_release_task_struct' [-Wmissing-prototypes] 162 | void __weak arch_release_task_struct(struct task_struct *tsk) | ^~~~~~~~~~~~~~~~~~~~~~~~ kernel/fork.c:862:20: warning: no previous prototype for 'arch_task_cache_init' [-Wmissing-prototypes] 862 | void __init __weak arch_task_cache_init(void) { } | ^~~~~~~~~~~~~~~~~~~~ kernel/fork.c:957:12: warning: no previous prototype for 'arch_dup_task_struct' [-Wmissing-prototypes] 957 | int __weak arch_dup_task_struct(struct task_struct *dst, | ^~~~~~~~~~~~~~~~~~~~ In file included from kernel/fork.c:98: include/linux/bpf.h:2643:19: warning: 'bpf_map_offload_map_mem_usage' declared 'static' but never defined [-Wunused-function] 2643 | static inline u64 bpf_map_offload_map_mem_usage(const struct bpf_map *map); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -- In file included from include/linux/filter.h:9, from kernel/sysctl.c:35: >> include/linux/bpf.h:2644:1: error: expected identifier or '(' before '{' token 2644 | { | ^ In file included from include/linux/filter.h:9, from kernel/sysctl.c:35: include/linux/bpf.h:2643:19: warning: 'bpf_map_offload_map_mem_usage' declared 'static' but never defined [-Wunused-function] 2643 | static inline u64 bpf_map_offload_map_mem_usage(const struct bpf_map *map); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -- In file included from include/linux/filter.h:9, from kernel/kallsyms.c:25: >> include/linux/bpf.h:2644:1: error: expected identifier or '(' before '{' token 2644 | { | ^ kernel/kallsyms.c:663:12: warning: no previous prototype for 'arch_get_kallsym' [-Wmissing-prototypes] 663 | int __weak arch_get_kallsym(unsigned int symnum, unsigned long *value, | ^~~~~~~~~~~~~~~~ In file included from include/linux/filter.h:9, from kernel/kallsyms.c:25: include/linux/bpf.h:2643:19: warning: 'bpf_map_offload_map_mem_usage' declared 'static' but never defined [-Wunused-function] 2643 | static inline u64 bpf_map_offload_map_mem_usage(const struct bpf_map *map); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -- In file included from include/linux/bpf-cgroup.h:5, from net/socket.c:55: >> include/linux/bpf.h:2644:1: error: expected identifier or '(' before '{' token 2644 | { | ^ net/socket.c: In function '__sys_getsockopt': net/socket.c:2300:13: warning: variable 'max_optlen' set but not used [-Wunused-but-set-variable] 2300 | int max_optlen; | ^~~~~~~~~~ In file included from include/linux/bpf-cgroup.h:5, from net/socket.c:55: net/socket.c: At top level: include/linux/bpf.h:2643:19: warning: 'bpf_map_offload_map_mem_usage' declared 'static' but never defined [-Wunused-function] 2643 | static inline u64 bpf_map_offload_map_mem_usage(const struct bpf_map *map); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -- In file included from include/linux/filter.h:9, from kernel/bpf/core.c:21: >> include/linux/bpf.h:2644:1: error: expected identifier or '(' before '{' token 2644 | { | ^ kernel/bpf/core.c:1631:12: warning: no previous prototype for 'bpf_probe_read_kernel' [-Wmissing-prototypes] 1631 | u64 __weak bpf_probe_read_kernel(void *dst, u32 size, const void *unsafe_ptr) | ^~~~~~~~~~~~~~~~~~~~~ kernel/bpf/core.c:2070:6: warning: no previous prototype for 'bpf_patch_call_args' [-Wmissing-prototypes] 2070 | void bpf_patch_call_args(struct bpf_insn *insn, u32 stack_depth) | ^~~~~~~~~~~~~~~~~~~ In file included from include/linux/filter.h:9, from kernel/bpf/core.c:21: include/linux/bpf.h:2643:19: warning: 'bpf_map_offload_map_mem_usage' declared 'static' but never defined [-Wunused-function] 2643 | static inline u64 bpf_map_offload_map_mem_usage(const struct bpf_map *map); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -- In file included from include/linux/filter.h:9, from include/net/sock_reuseport.h:5, from include/net/tcp.h:35, from net/ipv4/route.c:95: >> include/linux/bpf.h:2644:1: error: expected identifier or '(' before '{' token 2644 | { | ^ net/ipv4/route.c: In function 'ip_rt_send_redirect': net/ipv4/route.c:880:13: warning: variable 'log_martians' set but not used [-Wunused-but-set-variable] 880 | int log_martians; | ^~~~~~~~~~~~ In file included from include/linux/filter.h:9, from include/net/sock_reuseport.h:5, from include/net/tcp.h:35, from net/ipv4/route.c:95: net/ipv4/route.c: At top level: include/linux/bpf.h:2643:19: warning: 'bpf_map_offload_map_mem_usage' declared 'static' but never defined [-Wunused-function] 2643 | static inline u64 bpf_map_offload_map_mem_usage(const struct bpf_map *map); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +2644 include/linux/bpf.h 2642 2643 static inline u64 bpf_map_offload_map_mem_usage(const struct bpf_map *map); > 2644 { 2645 return 0; 2646 } 2647 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
