Warnings before patch:
files: ['drivers/net/ppp/ppp_generic.c', 'drivers/net/ppp/pppoe.c', 'include/linux/ppp_defs.h']
Warning: include/linux/ppp_defs.h:23 No description found for return value of 'ppp_proto_is_valid'
Warning: include/linux/ppp_defs.h:23 No description found for return value of 'ppp_proto_is_valid'

Current warnings:
files: ['drivers/net/ppp/ppp_generic.c', 'drivers/net/ppp/pppoe.c', 'include/linux/ppp_defs.h']
Warning: include/linux/ppp_defs.h:24 No description found for return value of 'ppp_skb_is_compressed_proto'
Warning: include/linux/ppp_defs.h:37 No description found for return value of 'ppp_proto_is_valid'
Warning: include/linux/ppp_defs.h:24 No description found for return value of 'ppp_skb_is_compressed_proto'
Warning: include/linux/ppp_defs.h:37 No description found for return value of 'ppp_proto_is_valid'

Warnings before: 2 after: 4 (add: 2)

New warnings added:
Warning: include/linux/ppp_defs.h:24 No description found for return value of 'ppp_skb_is_compressed_proto'
Warning: include/linux/ppp_defs.h:24 No description found for return value of 'ppp_skb_is_compressed_proto'
Per-file breakdown:
     2 include/linux/ppp_defs.h