tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 940fcc189c51032dd0282cbee4497542c982ac59 commit: f18b03fabaa9b7c80e80b72a621f481f0d706ae0 [5197/6975] bpf: Implement BPF exceptions config: i386-randconfig-006-20230921 (https://download.01.org/0day-ci/archive/20230921/202309212339.hxhBu2F1-lkp@xxxxxxxxx/config) compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230921/202309212339.hxhBu2F1-lkp@xxxxxxxxx/reproduce) 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@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202309212339.hxhBu2F1-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): kernel/bpf/helpers.c:1891:19: warning: no previous declaration for 'bpf_obj_new_impl' [-Wmissing-declarations] __bpf_kfunc void *bpf_obj_new_impl(u64 local_type_id__k, void *meta__ign) ^~~~~~~~~~~~~~~~ kernel/bpf/helpers.c:1905:19: warning: no previous declaration for 'bpf_percpu_obj_new_impl' [-Wmissing-declarations] __bpf_kfunc void *bpf_percpu_obj_new_impl(u64 local_type_id__k, void *meta__ign) ^~~~~~~~~~~~~~~~~~~~~~~ kernel/bpf/helpers.c:1933:18: warning: no previous declaration for 'bpf_obj_drop_impl' [-Wmissing-declarations] __bpf_kfunc void bpf_obj_drop_impl(void *p__alloc, void *meta__ign) ^~~~~~~~~~~~~~~~~ kernel/bpf/helpers.c:1941:18: warning: no previous declaration for 'bpf_percpu_obj_drop_impl' [-Wmissing-declarations] __bpf_kfunc void bpf_percpu_obj_drop_impl(void *p__alloc, void *meta__ign) ^~~~~~~~~~~~~~~~~~~~~~~~ kernel/bpf/helpers.c:1947:19: warning: no previous declaration for 'bpf_refcount_acquire_impl' [-Wmissing-declarations] __bpf_kfunc void *bpf_refcount_acquire_impl(void *p__refcounted_kptr, void *meta__ign) ^~~~~~~~~~~~~~~~~~~~~~~~~ kernel/bpf/helpers.c:1992:17: warning: no previous declaration for 'bpf_list_push_front_impl' [-Wmissing-declarations] __bpf_kfunc int bpf_list_push_front_impl(struct bpf_list_head *head, ^~~~~~~~~~~~~~~~~~~~~~~~ kernel/bpf/helpers.c:2002:17: warning: no previous declaration for 'bpf_list_push_back_impl' [-Wmissing-declarations] __bpf_kfunc int bpf_list_push_back_impl(struct bpf_list_head *head, ^~~~~~~~~~~~~~~~~~~~~~~ kernel/bpf/helpers.c:2035:35: warning: no previous declaration for 'bpf_list_pop_front' [-Wmissing-declarations] __bpf_kfunc struct bpf_list_node *bpf_list_pop_front(struct bpf_list_head *head) ^~~~~~~~~~~~~~~~~~ kernel/bpf/helpers.c:2040:35: warning: no previous declaration for 'bpf_list_pop_back' [-Wmissing-declarations] __bpf_kfunc struct bpf_list_node *bpf_list_pop_back(struct bpf_list_head *head) ^~~~~~~~~~~~~~~~~ kernel/bpf/helpers.c:2045:33: warning: no previous declaration for 'bpf_rbtree_remove' [-Wmissing-declarations] __bpf_kfunc struct bpf_rb_node *bpf_rbtree_remove(struct bpf_rb_root *root, ^~~~~~~~~~~~~~~~~ kernel/bpf/helpers.c:2101:17: warning: no previous declaration for 'bpf_rbtree_add_impl' [-Wmissing-declarations] __bpf_kfunc int bpf_rbtree_add_impl(struct bpf_rb_root *root, struct bpf_rb_node *node, ^~~~~~~~~~~~~~~~~~~ kernel/bpf/helpers.c:2111:33: warning: no previous declaration for 'bpf_rbtree_first' [-Wmissing-declarations] __bpf_kfunc struct bpf_rb_node *bpf_rbtree_first(struct bpf_rb_root *root) ^~~~~~~~~~~~~~~~ kernel/bpf/helpers.c:2124:33: warning: no previous declaration for 'bpf_task_acquire' [-Wmissing-declarations] __bpf_kfunc struct task_struct *bpf_task_acquire(struct task_struct *p) ^~~~~~~~~~~~~~~~ kernel/bpf/helpers.c:2135:18: warning: no previous declaration for 'bpf_task_release' [-Wmissing-declarations] __bpf_kfunc void bpf_task_release(struct task_struct *p) ^~~~~~~~~~~~~~~~ kernel/bpf/helpers.c:2147:28: warning: no previous declaration for 'bpf_cgroup_acquire' [-Wmissing-declarations] __bpf_kfunc struct cgroup *bpf_cgroup_acquire(struct cgroup *cgrp) ^~~~~~~~~~~~~~~~~~ kernel/bpf/helpers.c:2159:18: warning: no previous declaration for 'bpf_cgroup_release' [-Wmissing-declarations] __bpf_kfunc void bpf_cgroup_release(struct cgroup *cgrp) ^~~~~~~~~~~~~~~~~~ kernel/bpf/helpers.c:2171:28: warning: no previous declaration for 'bpf_cgroup_ancestor' [-Wmissing-declarations] __bpf_kfunc struct cgroup *bpf_cgroup_ancestor(struct cgroup *cgrp, int level) ^~~~~~~~~~~~~~~~~~~ kernel/bpf/helpers.c:2191:28: warning: no previous declaration for 'bpf_cgroup_from_id' [-Wmissing-declarations] __bpf_kfunc struct cgroup *bpf_cgroup_from_id(u64 cgid) ^~~~~~~~~~~~~~~~~~ kernel/bpf/helpers.c:2211:18: warning: no previous declaration for 'bpf_task_under_cgroup' [-Wmissing-declarations] __bpf_kfunc long bpf_task_under_cgroup(struct task_struct *task, ^~~~~~~~~~~~~~~~~~~~~ kernel/bpf/helpers.c:2224:33: warning: no previous declaration for 'bpf_task_from_pid' [-Wmissing-declarations] __bpf_kfunc struct task_struct *bpf_task_from_pid(s32 pid) ^~~~~~~~~~~~~~~~~ kernel/bpf/helpers.c:2265:19: warning: no previous declaration for 'bpf_dynptr_slice' [-Wmissing-declarations] __bpf_kfunc void *bpf_dynptr_slice(const struct bpf_dynptr_kern *ptr, u32 offset, ^~~~~~~~~~~~~~~~ kernel/bpf/helpers.c:2349:19: warning: no previous declaration for 'bpf_dynptr_slice_rdwr' [-Wmissing-declarations] __bpf_kfunc void *bpf_dynptr_slice_rdwr(const struct bpf_dynptr_kern *ptr, u32 offset, ^~~~~~~~~~~~~~~~~~~~~ kernel/bpf/helpers.c:2380:17: warning: no previous declaration for 'bpf_dynptr_adjust' [-Wmissing-declarations] __bpf_kfunc int bpf_dynptr_adjust(struct bpf_dynptr_kern *ptr, u32 start, u32 end) ^~~~~~~~~~~~~~~~~ kernel/bpf/helpers.c:2398:18: warning: no previous declaration for 'bpf_dynptr_is_null' [-Wmissing-declarations] __bpf_kfunc bool bpf_dynptr_is_null(struct bpf_dynptr_kern *ptr) ^~~~~~~~~~~~~~~~~~ kernel/bpf/helpers.c:2403:18: warning: no previous declaration for 'bpf_dynptr_is_rdonly' [-Wmissing-declarations] __bpf_kfunc bool bpf_dynptr_is_rdonly(struct bpf_dynptr_kern *ptr) ^~~~~~~~~~~~~~~~~~~~ kernel/bpf/helpers.c:2411:19: warning: no previous declaration for 'bpf_dynptr_size' [-Wmissing-declarations] __bpf_kfunc __u32 bpf_dynptr_size(const struct bpf_dynptr_kern *ptr) ^~~~~~~~~~~~~~~ kernel/bpf/helpers.c:2419:17: warning: no previous declaration for 'bpf_dynptr_clone' [-Wmissing-declarations] __bpf_kfunc int bpf_dynptr_clone(struct bpf_dynptr_kern *ptr, ^~~~~~~~~~~~~~~~ kernel/bpf/helpers.c:2432:19: warning: no previous declaration for 'bpf_cast_to_kern_ctx' [-Wmissing-declarations] __bpf_kfunc void *bpf_cast_to_kern_ctx(void *obj) ^~~~~~~~~~~~~~~~~~~~ kernel/bpf/helpers.c:2437:19: warning: no previous declaration for 'bpf_rdonly_cast' [-Wmissing-declarations] __bpf_kfunc void *bpf_rdonly_cast(void *obj__ign, u32 btf_id__k) ^~~~~~~~~~~~~~~ kernel/bpf/helpers.c:2442:18: warning: no previous declaration for 'bpf_rcu_read_lock' [-Wmissing-declarations] __bpf_kfunc void bpf_rcu_read_lock(void) ^~~~~~~~~~~~~~~~~ kernel/bpf/helpers.c:2447:18: warning: no previous declaration for 'bpf_rcu_read_unlock' [-Wmissing-declarations] __bpf_kfunc void bpf_rcu_read_unlock(void) ^~~~~~~~~~~~~~~~~~~ >> kernel/bpf/helpers.c:2476:18: warning: no previous declaration for 'bpf_throw' [-Wmissing-declarations] __bpf_kfunc void bpf_throw(u64 cookie) ^~~~~~~~~ vim +/bpf_throw +2476 kernel/bpf/helpers.c 2475 > 2476 __bpf_kfunc void bpf_throw(u64 cookie) 2477 { 2478 struct bpf_throw_ctx ctx = {}; 2479 2480 arch_bpf_stack_walk(bpf_stack_walker, &ctx); 2481 WARN_ON_ONCE(!ctx.aux); 2482 if (ctx.aux) 2483 WARN_ON_ONCE(!ctx.aux->exception_boundary); 2484 WARN_ON_ONCE(!ctx.bp); 2485 WARN_ON_ONCE(!ctx.cnt); 2486 ctx.aux->bpf_exception_cb(cookie, ctx.sp, ctx.bp); 2487 } 2488 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
