../net/xfrm/xfrm_output.c: note: in included file (through ../include/linux/rbtree.h, ../include/linux/mm_types.h, ../include/linux/mmzone.h, ../include/linux/gfp.h, ../include/linux/umh.h, ../include/linux/kmod.h, ...):
../include/linux/rcupdate.h:880:25: warning: context imbalance in 'xfrm_local_error' - unexpected unlock
../arch/x86/boot/version.c:18:12: warning: symbol 'kernel_version' was not declared. Should it be static?