Recent changes in Hyper-V driver ("Drivers: hv: vmbus: add special crash handler") broke the build when CONFIG_KEXEC_CORE is not set. These changes, however, only reveal the previously existent issue: when CONFIG_KEXEC_CORE is not defined kernel/kexec.c is not being included in the build and native_machine_crash_shutdown() defined in asm/reboot.h has no implementation. Reported-by: Jim Davis <jim.epost@xxxxxxxxx> Signed-off-by: Vitaly Kuznetsov <vkuznets@xxxxxxxxxx> --- arch/x86/include/asm/reboot.h | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/arch/x86/include/asm/reboot.h b/arch/x86/include/asm/reboot.h index a82c4f1..a6c1124 100644 --- a/arch/x86/include/asm/reboot.h +++ b/arch/x86/include/asm/reboot.h @@ -16,8 +16,15 @@ struct machine_ops { extern struct machine_ops machine_ops; -void native_machine_crash_shutdown(struct pt_regs *regs); void native_machine_shutdown(void); +#ifdef CONFIG_KEXEC_CORE +void native_machine_crash_shutdown(struct pt_regs *regs); +#else +static inline void native_machine_crash_shutdown(struct pt_regs *regs) +{ + native_machine_shutdown(); +} +#endif void __noreturn machine_real_restart(unsigned int type); /* These must match dispatch in arch/x86/realmore/rm/reboot.S */ #define MRR_BIOS 0 -- 2.4.3 -- To unsubscribe from this list: send the line "unsubscribe linux-next" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html