what does this udev message mean?

[Jude DaShiell <jdashiel@shellworld.net>]

udev: deprecated sysfs layout; update the kernel or disable 
CONFIG_SYSFS_DEPRECATED; some udev features will not work correctly . The 
interesting thing about this message on boot up on my system is that it 
isn't being caught by dmesg.  That is when I do dmesg >dmesg.log and 
examine the log file, this message does not appear in that file though I 
hear it as speakup boots the system.  I managed to snag it with speakup's 
clipboard feature.