Error in uninstalling FEC driver on kernel 5.10

[jerry2004]

platform   ：  I.MX6

kernel：       5.10

We have compiled the FEC driver configuration into a ko module, and everything is normal when loading insmod. However, in the rmmod driver module, the following error will be reported. What is this error （rmmod:ERROR:Module FEC is builtin）and how to solve it? Thank you

[Harvey021]

Hi @jerry2004 

It seems that the fec is already a builtin kernel driver. what have you modified? 

You can do dmesg to check and zcat /proc/config.gz.  also try to add print in remove of your driver.

Best regards

Harvey