Currently with this configuration I get:
arch/x86/built-in.o: In function `hv_machine_crash_shutdown':
mshyperv.c:(.text+0x29656): undefined reference to `native_machine_crash_shutdown'
Fixes: b4370df2b1f5 ("Drivers: hv: vmbus: add special crash handler")
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
Cc: Vitaly Kuznetsov <vkuznets@xxxxxxxxxx>
---
arch/x86/kernel/cpu/mshyperv.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/arch/x86/kernel/cpu/mshyperv.c b/arch/x86/kernel/cpu/mshyperv.c
index 381c8b9..0c94600 100644
--- a/arch/x86/kernel/cpu/mshyperv.c
+++ b/arch/x86/kernel/cpu/mshyperv.c
@@ -35,7 +35,7 @@ struct ms_hyperv_info ms_hyperv;
EXPORT_SYMBOL_GPL(ms_hyperv);
static void (*hv_kexec_handler)(void);
-static void (*hv_crash_handler)(struct pt_regs *regs);
+static void (*hv_crash_handler)(struct pt_regs *regs) __maybe_unused;
#if IS_ENABLED(CONFIG_HYPERV)
static void (*vmbus_handler)(void);
@@ -105,12 +105,14 @@ static void hv_machine_shutdown(void)
native_machine_shutdown();
}
+#ifdef CONFIG_KEXEC_CORE
static void hv_machine_crash_shutdown(struct pt_regs *regs)
{
if (hv_crash_handler)
hv_crash_handler(regs);
native_machine_crash_shutdown(regs);
}
+#endif
static uint32_t __init ms_hyperv_platform(void)
@@ -187,7 +189,9 @@ static void __init ms_hyperv_init_platform(void)
#endif
machine_ops.shutdown = hv_machine_shutdown;
+#ifdef CONFIG_KEXEC_CORE
machine_ops.crash_shutdown = hv_machine_crash_shutdown;
+#endif
mark_tsc_unstable("running on Hyper-V");
}
--
Ben Hutchings
Any smoothly functioning technology is indistinguishable from a rigged demo.Attachment:
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