/usr/src/linux-source-3.13.0/debian.master/config/config.common.ports is in linux-source-3.13.0 3.13.0-139.188.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 | #
# Common config options automatically generated by splitconfig.pl
#
|