With the latest 3.1.5 merge linux-linaro-3.1 fails to build on Jenkins:

https://ci.linaro.org/jenkins/view/All%20CI/job/linux-linaro-3.1_panda-omap2...

GEN .version CHK include/generated/compile.h UPD include/generated/compile.h CC init/version.o LD init/built-in.o LD .tmp_vmlinux1 `oprofile_arch_exit' referenced in section `.init.text' of arch/arm/oprofile/built-in.o: defined in discarded section `.exit.text' of arch/arm/oprofile/built-in.o `oprofile_arch_exit' referenced in section `.init.text' of arch/arm/oprofile/built-in.o: defined in discarded section `.exit.text' of arch/arm/oprofile/built-in.o

I originally saw this with my packaged kernel builds so checked the unpackaged version to see if it was a config/sauce issue from packaging.