Tether? Why does the "access-control"-feature not work or is disabled

[black68gtx]

Need some clearification. I loaded Wireless Tether for rooted and got this message the first time I ran it. "access-control"-feature not work or is disabled".
I went to the FAQ site and it gave me this "If the feature "CONFIG_NETFILTER_XT_MATCH_MAC" is missing the "access control"-feature will not work correctly (you will see a "failed"-status in "Show log" for "Enabling access control"). To detect if all kernel-option were enabled in your current kernel the following kernel-options should be enabled: CONFIG_PROC_FS, CONFIG_IKCONFIG, and CONFIG_IKCONFIG_PRO. This dumps the current kernel-config to /proc/config.gz".
I'm a newbie so, I'm not sure how to proceed with this or should I Be concerned with it.