../net/ipv4/icmp.c: note: in included file (through ../include/linux/spinlock.h, ../include/linux/sched.h, ../include/linux/percpu.h, ../arch/x86/include/asm/msr.h, ../arch/x86/include/asm/tsc.h, ...): ../include/linux/bottom_half.h:33:30: warning: context imbalance in 'icmp_reply' - different lock contexts for basic block ../include/linux/bottom_half.h:33:30: warning: context imbalance in '__icmp_send' - different lock contexts for basic block ../arch/x86/boot/version.c:18:12: warning: symbol 'kernel_version' was not declared. Should it be static? ../net/ipv4/icmp.c: note: in included file (through ../include/linux/spinlock.h, ../include/linux/sched.h, ../include/linux/percpu.h, ../arch/x86/include/asm/msr.h, ../arch/x86/include/asm/tsc.h, ...): ../include/linux/bottom_half.h:33:30: warning: context imbalance in 'icmp_reply' - different lock contexts for basic block ../include/linux/bottom_half.h:33:30: warning: context imbalance in '__icmp_send' - different lock contexts for basic block ../arch/x86/boot/version.c:18:12: warning: symbol 'kernel_version' was not declared. Should it be static?