include/linux/tcp.h:60: warning: No description found for return value of 'skb_tcp_all_headers'
include/linux/tcp.h:75: warning: No description found for return value of 'skb_inner_tcp_all_headers'
net/ipv4/tcp.c:795: warning: No description found for return value of 'tcp_splice_read'
net/ipv4/tcp_output.c:3959: warning: No description found for return value of 'tcp_make_synack'
include/linux/tcp.h:60: warning: No description found for return value of 'skb_tcp_all_headers'
include/linux/tcp.h:75: warning: No description found for return value of 'skb_inner_tcp_all_headers'
net/ipv4/tcp.c:796: warning: No description found for return value of 'tcp_splice_read'
net/ipv4/tcp_output.c:3959: warning: No description found for return value of 'tcp_make_synack'