Problem in kernel compliation with config options

HI, I am trying to complie the kernel with CONFIG_STRICT_DEVMEM option enabled. I have done the following 1) In menuconfig i excluded Filter Access To dev/mem . I can see # CONFIG_STRICT_DEVMEM is not set in .config 2) i did make clean;make;make modules_install,make install & then reboot 3) When i use mmap(/dev/mem,,,,) from user program, i still see the code(drivers/char/mem.c) executed within #ifdef CONFIG_STRICT_DEVMEM this is my dmesg |tail -10 output Program outmap tried to access /dev/mem between [mem 0x371fc000-0x371fcfff] What am i doing wrong? --Thanks