Warnings before patch:
files: ['include/linux/bpf-cgroup-defs.h', 'include/linux/bpf-cgroup.h', 'include/linux/bpf.h', 'include/uapi/linux/bpf.h', 'kernel/bpf/bpf_struct_ops.c', 'kernel/bpf/cgroup.c', 'tools/include/uapi/linux/bpf.h']
Warning: kernel/bpf/cgroup.c:506 No description found for return value of 'cgroup_bpf_inherit'
Warning: kernel/bpf/cgroup.c:789 No description found for return value of '__cgroup_bpf_attach'
Warning: kernel/bpf/cgroup.c:978 No description found for return value of '__cgroup_bpf_replace'
Warning: kernel/bpf/cgroup.c:1137 No description found for return value of '__cgroup_bpf_detach'
Warning: kernel/bpf/cgroup.c:1563 No description found for return value of '__cgroup_bpf_run_filter_skb'
Warning: kernel/bpf/cgroup.c:1640 No description found for return value of '__cgroup_bpf_run_filter_sk'
Warning: kernel/bpf/cgroup.c:1672 No description found for return value of '__cgroup_bpf_run_filter_sock_addr'
Warning: kernel/bpf/cgroup.c:1727 No description found for return value of '__cgroup_bpf_run_filter_sock_ops'
Warning: kernel/bpf/cgroup.c:1896 No description found for return value of '__cgroup_bpf_run_filter_sysctl'
Warning: kernel/bpf/cgroup.c:506 No description found for return value of 'cgroup_bpf_inherit'
Warning: kernel/bpf/cgroup.c:789 No description found for return value of '__cgroup_bpf_attach'
Warning: kernel/bpf/cgroup.c:978 No description found for return value of '__cgroup_bpf_replace'
Warning: kernel/bpf/cgroup.c:1137 No description found for return value of '__cgroup_bpf_detach'
Warning: kernel/bpf/cgroup.c:1563 No description found for return value of '__cgroup_bpf_run_filter_skb'
Warning: kernel/bpf/cgroup.c:1640 No description found for return value of '__cgroup_bpf_run_filter_sk'
Warning: kernel/bpf/cgroup.c:1672 No description found for return value of '__cgroup_bpf_run_filter_sock_addr'
Warning: kernel/bpf/cgroup.c:1727 No description found for return value of '__cgroup_bpf_run_filter_sock_ops'
Warning: kernel/bpf/cgroup.c:1896 No description found for return value of '__cgroup_bpf_run_filter_sysctl'

Current warnings:
files: ['include/linux/bpf-cgroup-defs.h', 'include/linux/bpf-cgroup.h', 'include/linux/bpf.h', 'include/uapi/linux/bpf.h', 'kernel/bpf/bpf_struct_ops.c', 'kernel/bpf/cgroup.c', 'tools/include/uapi/linux/bpf.h']
Warning: kernel/bpf/cgroup.c:523 No description found for return value of 'cgroup_bpf_inherit'
Warning: kernel/bpf/cgroup.c:807 No description found for return value of '__cgroup_bpf_attach'
Warning: kernel/bpf/cgroup.c:996 No description found for return value of '__cgroup_bpf_replace'
Warning: kernel/bpf/cgroup.c:1155 No description found for return value of '__cgroup_bpf_detach'
Warning: kernel/bpf/cgroup.c:1581 No description found for return value of '__cgroup_bpf_run_filter_skb'
Warning: kernel/bpf/cgroup.c:1658 No description found for return value of '__cgroup_bpf_run_filter_sk'
Warning: kernel/bpf/cgroup.c:1690 No description found for return value of '__cgroup_bpf_run_filter_sock_addr'
Warning: kernel/bpf/cgroup.c:1745 No description found for return value of '__cgroup_bpf_run_filter_sock_ops'
Warning: kernel/bpf/cgroup.c:1914 No description found for return value of '__cgroup_bpf_run_filter_sysctl'
Warning: kernel/bpf/cgroup.c:523 No description found for return value of 'cgroup_bpf_inherit'
Warning: kernel/bpf/cgroup.c:807 No description found for return value of '__cgroup_bpf_attach'
Warning: kernel/bpf/cgroup.c:996 No description found for return value of '__cgroup_bpf_replace'
Warning: kernel/bpf/cgroup.c:1155 No description found for return value of '__cgroup_bpf_detach'
Warning: kernel/bpf/cgroup.c:1581 No description found for return value of '__cgroup_bpf_run_filter_skb'
Warning: kernel/bpf/cgroup.c:1658 No description found for return value of '__cgroup_bpf_run_filter_sk'
Warning: kernel/bpf/cgroup.c:1690 No description found for return value of '__cgroup_bpf_run_filter_sock_addr'
Warning: kernel/bpf/cgroup.c:1745 No description found for return value of '__cgroup_bpf_run_filter_sock_ops'
Warning: kernel/bpf/cgroup.c:1914 No description found for return value of '__cgroup_bpf_run_filter_sysctl'

Warnings before: 18 after: 18