Try
Code:
su
yum groupinstall "Development tools"
yum install fedpkg rpmdevtools
exit
cd ~
rpmdev-setuptree
mkdir ~/fedpkg_checkout;cd fedpkg_checkout
fedpkg co -a -B kernel
cd kernel/master
make release
fedpkg srpm
su -c "yum-builddep -y kernel-*.src.rpm"
time rpmbuild --rebuild --with baseonly --without debuginfo --target=`uname -m` kernel-*.src.rpm