Warnings before patch:
files: ['net/ipv6/exthdrs.c']
Warning: net/ipv6/exthdrs.c:1263 No description found for return value of 'ipv6_renew_options'
Warning: net/ipv6/exthdrs.c:1351 No description found for return value of 'fl6_update_dst'
Warning: net/ipv6/exthdrs.c:1263 No description found for return value of 'ipv6_renew_options'
Warning: net/ipv6/exthdrs.c:1351 No description found for return value of 'fl6_update_dst'

Current warnings:
files: ['net/ipv6/exthdrs.c']
Warning: net/ipv6/exthdrs.c:1265 No description found for return value of 'ipv6_renew_options'
Warning: net/ipv6/exthdrs.c:1353 No description found for return value of 'fl6_update_dst'
Warning: net/ipv6/exthdrs.c:1265 No description found for return value of 'ipv6_renew_options'
Warning: net/ipv6/exthdrs.c:1353 No description found for return value of 'fl6_update_dst'

Warnings before: 4 after: 4