A quick note to build your customized Linux kernel on Ubuntu system. Below are refer to GitKernelBuild

Build kernel

Checkout upstream kernel

$ git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
$ cd linux
$ git checkout TAG/COMMIT  # up on your case, ex: git checkout v3.17-rc5

Copy default config

$ cp /boot/config-`uname -r` .config
$ make oldconfig
$ # (optional) change your kernel flavor continue by 'make menuconfig'
$ #            in my case I skip that simply want to build latest kernel

Make kernel packages

$ make -j `getconf _NPROCESSORS_ONLN` deb-pkg LOCALVERSION=-harry

now wait and grab a coffee, it takes time after then you will see couple .deb file in upper folder

$ ls -lh ../*.deb | awk '{print $5, "\t", $9}'
944K   ../linux-firmware-image-3.17.0-rc5-harry_3.17.0-rc5-harry-3_amd64.deb
6.4M   ../linux-headers-3.17.0-rc5-harry_3.17.0-rc5-harry-3_amd64.deb
353M   ../linux-image-3.17.0-rc5-harry_3.17.0-rc5-harry-3_amd64.deb
35M    ../linux-image-3.17.0-rc5-harry-dbg_3.17.0-rc5-harry-3_amd64.deb
750K   ../linux-libc-dev_3.17.0-rc5-harry-3_amd64.deb

Install kernel packages

$ sudo dpkg -i ../linux-image-3.17.0-rc5-harry_3.17.0-rc5-harry-3_amd64.deb
$ sudo dpkg -i ../linux-headers-3.17.0-rc5-harry_3.17.0-rc5-harry-3_amd64.deb

once done, reboot then cross fingers

$ sudo reboot

Remove kernel packages

You might want to remove customized kernel

$ dpkg -l | grep harry
ii  linux-headers-3.17.0-rc5-harry                        3.17.0-rc5-harry-3                                  amd64        Linux kernel headers for 3.17.0-rc5-harry on amd64
ii  linux-image-3.17.0-rc5-harry                          3.17.0-rc5-harry-3                                  amd64        Linux kernel, version 3.17.0-rc5-harry
$ sudo dpkg --purge linux-headers-3.17.0-rc5-harry
$ sudo dpkg --purge linux-image-3.17.0-rc5-harry