--Kernel modules finished compilation without error, but when I try to load rotary_encoder.ko using 'modprobe rotary_encoder' I get an error stating 'Invalid module format'.  Not sure what the error is, because when I call 'modinfo rotary_encoder' the first entry on the vermagic line matches the output of 3.5.0-2-linaro-omap, so the kernel versions should be the same.  The dmesg entry for that command is 'rotary_encoder: disagrees about version of symbol module_layout'.
--Had to replace *.ko, *.mod.c, *.mod.o, *.o, modules.order in ~/build/linux-omap-3.5/drivers/omap3-pwm and ~/build/linux-omap-3.5/drivers/gpio-event/module from old git commits (from January).  These were the kernel modules for the PWM (servos) and gpio-event monitor (bump switches), respectively.  They were apparently deleted during the make process on Friday.