USB modem and unsupported module tainting my kernel?

I installed Suse 9.3 on my ThinkPad X30 laptop with a built in Linmodem. Looking at dmesg I see the lines copied below. PCI: Setting latency timer of device 0000:00:1f.6 to 64 slamr: mc97 codec is SIL27 slamr: slamr0 is ICH card. slusb: unsupported module, tainting kernel. ST7554 USB Modem. usbcore: registered new driver ST7554 USB Modem When I check YAST hardware info I see Device name: /dev/ttySL0 Device: 82801CA/CAM AC'97 Modem Controller Driver: slamr The built in modem works, so that isn't a problem. But where does reference to a USB Modem come from? And is the unsupported module that is tainting the kernel something to be concerned about? Thanks, John