Warnings before patch:
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:1265 No description found for return value of 'ipv6_renew_options'

Current warnings:
files: ['net/ipv6/exthdrs.c']
Warning: net/ipv6/exthdrs.c:1275 No description found for return value of 'ipv6_renew_options'
Warning: net/ipv6/exthdrs.c:1275 No description found for return value of 'ipv6_renew_options'

Warnings before: 2 after: 2