"kernel driver" in "lspci" output

I usually make use of lspci -v to examine the LKM in operation for certain equipment tool. LKMs are detailed as "Kernel modules" and also can be seen with lsmod. Nonetheless, what is a "Kernel driver"? As an example here:

Is the "bcma - pci - bridge" a component constructed right into kernel (I'm making use of 3.11.0) and also hence it is not loadable and also hence it will not show up in lsmod, can not be unloaded with modprobe -r or gotten in touch with modinfo?