Warnings before patch:
files: ['kernel/bpf/helpers.c', 'kernel/trace/bpf_trace.c', 'net/core/filter.c']
Warning: kernel/bpf/helpers.c:2517 No description found for return value of 'bpf_task_acquire'
Warning: kernel/bpf/helpers.c:2546 No description found for return value of 'bpf_cgroup_acquire'
Warning: kernel/bpf/helpers.c:2576 No description found for return value of 'bpf_cgroup_ancestor'
Warning: kernel/bpf/helpers.c:2596 No description found for return value of 'bpf_cgroup_from_id'
Warning: kernel/bpf/helpers.c:2617 No description found for return value of 'bpf_task_under_cgroup'
Warning: kernel/bpf/helpers.c:2660 No description found for return value of 'bpf_task_get_cgroup1'
Warning: kernel/bpf/helpers.c:2676 No description found for return value of 'bpf_task_from_pid'
Warning: kernel/bpf/helpers.c:2695 No description found for return value of 'bpf_task_from_vpid'
Warning: kernel/bpf/helpers.c:2933 No description found for return value of 'bpf_dynptr_copy'
Warning: kernel/bpf/helpers.c:2987 No description found for return value of 'bpf_dynptr_memset'
Warning: kernel/bpf/helpers.c:3201 No description found for return value of 'bpf_iter_bits_new'
Warning: kernel/bpf/helpers.c:3262 No description found for return value of 'bpf_iter_bits_next'
Warning: kernel/bpf/helpers.c:3312 No description found for return value of 'bpf_copy_from_user_str'
Warning: net/core/filter.c:135 No description found for return value of 'sk_filter_trim_cap'
Warning: net/core/filter.c:587 No description found for return value of 'bpf_convert_filter'
Warning: net/core/filter.c:1082 No description found for return value of 'bpf_check_classic'
Warning: net/core/filter.c:1387 No description found for return value of 'bpf_prog_create'
Warning: net/core/filter.c:1433 No description found for return value of 'bpf_prog_create_from_user'
Warning: net/core/filter.c:1554 No description found for return value of 'sk_attach_filter'
Warning: net/core/filter.c:12114 No description found for return value of 'bpf_skb_meta_pointer'
Warning: kernel/bpf/helpers.c:2517 No description found for return value of 'bpf_task_acquire'
Warning: kernel/bpf/helpers.c:2546 No description found for return value of 'bpf_cgroup_acquire'
Warning: kernel/bpf/helpers.c:2576 No description found for return value of 'bpf_cgroup_ancestor'
Warning: kernel/bpf/helpers.c:2596 No description found for return value of 'bpf_cgroup_from_id'
Warning: kernel/bpf/helpers.c:2617 No description found for return value of 'bpf_task_under_cgroup'
Warning: kernel/bpf/helpers.c:2660 No description found for return value of 'bpf_task_get_cgroup1'
Warning: kernel/bpf/helpers.c:2676 No description found for return value of 'bpf_task_from_pid'
Warning: kernel/bpf/helpers.c:2695 No description found for return value of 'bpf_task_from_vpid'
Warning: kernel/bpf/helpers.c:2933 No description found for return value of 'bpf_dynptr_copy'
Warning: kernel/bpf/helpers.c:2987 No description found for return value of 'bpf_dynptr_memset'
Warning: kernel/bpf/helpers.c:3201 No description found for return value of 'bpf_iter_bits_new'
Warning: kernel/bpf/helpers.c:3262 No description found for return value of 'bpf_iter_bits_next'
Warning: kernel/bpf/helpers.c:3312 No description found for return value of 'bpf_copy_from_user_str'
Warning: net/core/filter.c:135 No description found for return value of 'sk_filter_trim_cap'
Warning: net/core/filter.c:587 No description found for return value of 'bpf_convert_filter'
Warning: net/core/filter.c:1082 No description found for return value of 'bpf_check_classic'
Warning: net/core/filter.c:1387 No description found for return value of 'bpf_prog_create'
Warning: net/core/filter.c:1433 No description found for return value of 'bpf_prog_create_from_user'
Warning: net/core/filter.c:1554 No description found for return value of 'sk_attach_filter'
Warning: net/core/filter.c:12114 No description found for return value of 'bpf_skb_meta_pointer'

Current warnings:
files: ['kernel/bpf/helpers.c', 'kernel/trace/bpf_trace.c', 'net/core/filter.c']
Warning: kernel/bpf/helpers.c:2517 No description found for return value of 'bpf_task_acquire'
Warning: kernel/bpf/helpers.c:2546 No description found for return value of 'bpf_cgroup_acquire'
Warning: kernel/bpf/helpers.c:2576 No description found for return value of 'bpf_cgroup_ancestor'
Warning: kernel/bpf/helpers.c:2596 No description found for return value of 'bpf_cgroup_from_id'
Warning: kernel/bpf/helpers.c:2617 No description found for return value of 'bpf_task_under_cgroup'
Warning: kernel/bpf/helpers.c:2660 No description found for return value of 'bpf_task_get_cgroup1'
Warning: kernel/bpf/helpers.c:2676 No description found for return value of 'bpf_task_from_pid'
Warning: kernel/bpf/helpers.c:2695 No description found for return value of 'bpf_task_from_vpid'
Warning: kernel/bpf/helpers.c:2933 No description found for return value of 'bpf_dynptr_copy'
Warning: kernel/bpf/helpers.c:2987 No description found for return value of 'bpf_dynptr_memset'
Warning: kernel/bpf/helpers.c:3201 No description found for return value of 'bpf_iter_bits_new'
Warning: kernel/bpf/helpers.c:3262 No description found for return value of 'bpf_iter_bits_next'
Warning: kernel/bpf/helpers.c:3312 No description found for return value of 'bpf_copy_from_user_str'
Warning: net/core/filter.c:135 No description found for return value of 'sk_filter_trim_cap'
Warning: net/core/filter.c:587 No description found for return value of 'bpf_convert_filter'
Warning: net/core/filter.c:1082 No description found for return value of 'bpf_check_classic'
Warning: net/core/filter.c:1387 No description found for return value of 'bpf_prog_create'
Warning: net/core/filter.c:1433 No description found for return value of 'bpf_prog_create_from_user'
Warning: net/core/filter.c:1554 No description found for return value of 'sk_attach_filter'
Warning: net/core/filter.c:12114 No description found for return value of 'bpf_skb_meta_pointer'
Warning: kernel/bpf/helpers.c:2517 No description found for return value of 'bpf_task_acquire'
Warning: kernel/bpf/helpers.c:2546 No description found for return value of 'bpf_cgroup_acquire'
Warning: kernel/bpf/helpers.c:2576 No description found for return value of 'bpf_cgroup_ancestor'
Warning: kernel/bpf/helpers.c:2596 No description found for return value of 'bpf_cgroup_from_id'
Warning: kernel/bpf/helpers.c:2617 No description found for return value of 'bpf_task_under_cgroup'
Warning: kernel/bpf/helpers.c:2660 No description found for return value of 'bpf_task_get_cgroup1'
Warning: kernel/bpf/helpers.c:2676 No description found for return value of 'bpf_task_from_pid'
Warning: kernel/bpf/helpers.c:2695 No description found for return value of 'bpf_task_from_vpid'
Warning: kernel/bpf/helpers.c:2933 No description found for return value of 'bpf_dynptr_copy'
Warning: kernel/bpf/helpers.c:2987 No description found for return value of 'bpf_dynptr_memset'
Warning: kernel/bpf/helpers.c:3201 No description found for return value of 'bpf_iter_bits_new'
Warning: kernel/bpf/helpers.c:3262 No description found for return value of 'bpf_iter_bits_next'
Warning: kernel/bpf/helpers.c:3312 No description found for return value of 'bpf_copy_from_user_str'
Warning: net/core/filter.c:135 No description found for return value of 'sk_filter_trim_cap'
Warning: net/core/filter.c:587 No description found for return value of 'bpf_convert_filter'
Warning: net/core/filter.c:1082 No description found for return value of 'bpf_check_classic'
Warning: net/core/filter.c:1387 No description found for return value of 'bpf_prog_create'
Warning: net/core/filter.c:1433 No description found for return value of 'bpf_prog_create_from_user'
Warning: net/core/filter.c:1554 No description found for return value of 'sk_attach_filter'
Warning: net/core/filter.c:12114 No description found for return value of 'bpf_skb_meta_pointer'

Warnings before: 40 after: 40