Warnings before patch:
files: ['net/core/filter.c', 'include/linux/filter.h', 'kernel/bpf/helpers.c']
Warning: kernel/bpf/helpers.c:2516 No description found for return value of 'bpf_task_acquire'
Warning: kernel/bpf/helpers.c:2545 No description found for return value of 'bpf_cgroup_acquire'
Warning: kernel/bpf/helpers.c:2575 No description found for return value of 'bpf_cgroup_ancestor'
Warning: kernel/bpf/helpers.c:2595 No description found for return value of 'bpf_cgroup_from_id'
Warning: kernel/bpf/helpers.c:2616 No description found for return value of 'bpf_task_under_cgroup'
Warning: kernel/bpf/helpers.c:2659 No description found for return value of 'bpf_task_get_cgroup1'
Warning: kernel/bpf/helpers.c:2675 No description found for return value of 'bpf_task_from_pid'
Warning: kernel/bpf/helpers.c:2694 No description found for return value of 'bpf_task_from_vpid'
Warning: kernel/bpf/helpers.c:2932 No description found for return value of 'bpf_dynptr_copy'
Warning: kernel/bpf/helpers.c:2986 No description found for return value of 'bpf_dynptr_memset'
Warning: kernel/bpf/helpers.c:3200 No description found for return value of 'bpf_iter_bits_new'
Warning: kernel/bpf/helpers.c:3261 No description found for return value of 'bpf_iter_bits_next'
Warning: kernel/bpf/helpers.c:3311 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:12021 No description found for return value of 'bpf_skb_meta_pointer'

Current warnings:
files: ['net/core/filter.c', 'include/linux/filter.h', 'kernel/bpf/helpers.c']
Warning: kernel/bpf/helpers.c:2514 No description found for return value of 'bpf_task_acquire'
Warning: kernel/bpf/helpers.c:2543 No description found for return value of 'bpf_cgroup_acquire'
Warning: kernel/bpf/helpers.c:2573 No description found for return value of 'bpf_cgroup_ancestor'
Warning: kernel/bpf/helpers.c:2593 No description found for return value of 'bpf_cgroup_from_id'
Warning: kernel/bpf/helpers.c:2614 No description found for return value of 'bpf_task_under_cgroup'
Warning: kernel/bpf/helpers.c:2657 No description found for return value of 'bpf_task_get_cgroup1'
Warning: kernel/bpf/helpers.c:2673 No description found for return value of 'bpf_task_from_pid'
Warning: kernel/bpf/helpers.c:2692 No description found for return value of 'bpf_task_from_vpid'
Warning: kernel/bpf/helpers.c:2930 No description found for return value of 'bpf_dynptr_copy'
Warning: kernel/bpf/helpers.c:2984 No description found for return value of 'bpf_dynptr_memset'
Warning: kernel/bpf/helpers.c:3198 No description found for return value of 'bpf_iter_bits_new'
Warning: kernel/bpf/helpers.c:3259 No description found for return value of 'bpf_iter_bits_next'
Warning: kernel/bpf/helpers.c:3309 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:12021 No description found for return value of 'bpf_skb_meta_pointer'

Warnings before: 20 after: 20