Warnings before patch: files: ['include/net/sock.h'] Warning: include/net/sock.h:625 No description found for return value of 'sk_user_data_is_nocopy' Warning: include/net/sock.h:644 No description found for return value of '__locked_read_sk_user_data_with_flags' Warning: include/net/sock.h:667 No description found for return value of '__rcu_dereference_sk_user_data_with_flags' Warning: include/net/sock.h:1722 No description found for return value of 'lock_sock_fast' Current warnings: files: ['include/net/sock.h'] Warning: include/net/sock.h:625 No description found for return value of 'sk_user_data_is_nocopy' Warning: include/net/sock.h:644 No description found for return value of '__locked_read_sk_user_data_with_flags' Warning: include/net/sock.h:667 No description found for return value of '__rcu_dereference_sk_user_data_with_flags' Warning: include/net/sock.h:1722 No description found for return value of 'lock_sock_fast' Warnings before: 4 after: 4