4.10STABLE on IBM Thinkpad A21P sound driver

[LEI CHEN]

Dear list,
This is my first time built a STABLE, I built it on my Thinkpad A21P.
After I built the 4 stable, my 4.10Stable can't detect my sound driver,
and I use /boot/loader.conf to load snd_csa driver, but it doesn't work.

It works under 4.10-RELEASE by the way.

Has anyone in the list experience the problem like this before? Please
help.

Cheers,
LEI