in every boot i see that message in boot.log file , but i don't know exactly where is the problem and did I make something harmful to my system

fsck from util-linux-ng 2.17.2
/dev/sda1: clean, 219498/2342912 files, 3535309/9357824 blocks
WARNING: All config files need .conf: /etc/modprobe.d/bad_list, it will be ignored in a future release.
WARNING: All config files need .conf: /etc/modprobe.d/bad_list, it will be ignored in a future release.
WARNING: All config files need .conf: /etc/modprobe.d/bad_list, it will be ignored in a future release.
WARNING: All config files need .conf: /etc/modprobe.d/bad_list, it will be ignored in a future release.