4.9-stable review patch. If anyone has any objections, please let me know.
------------------
From: Dexuan Cui <decui@xxxxxxxxxxxxx>
commit 238064f13d057390a8c5e1a6a80f4f0a0ec46499 upstream.
The pci-hyperv driver's channel callback hv_pci_onchannelcallback() is not
really a hot path, so we don't need to mark it as a perf_device, meaning
with this patch all HV_PCIE channels' target_cpu will be CPU0.
Signed-off-by: Dexuan Cui <decui@xxxxxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Cc: Stephen Hemminger <sthemmin@xxxxxxxxxxxxx>
Signed-off-by: K. Y. Srinivasan <kys@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/hv/channel_mgmt.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/hv/channel_mgmt.c
+++ b/drivers/hv/channel_mgmt.c
@@ -70,7 +70,7 @@ static const struct vmbus_device vmbus_d
/* PCIE */
{ .dev_type = HV_PCIE,
HV_PCIE_GUID,
- .perf_device = true,
+ .perf_device = false,
},
/* Synthetic Frame Buffer */