Thread (1 message) flat view 1 message, 1 author, 2021-07-05

Re: [PATCH 3/3] vDPA/ifcvf: set_status() should get a adapter from the mgmt dev

From: Jason Wang <hidden>
Date: 2021-07-05 05:09:35
Also in: kvm, netdev

在 2021/6/30 下午4:21, Zhu Lingshan 写道:
quoted hunk
ifcvf_vdpa_set_status() should get a adapter from the
management device

Signed-off-by: Zhu Lingshan <redacted>
---
  drivers/vdpa/ifcvf/ifcvf_main.c | 4 +++-
  1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/vdpa/ifcvf/ifcvf_main.c b/drivers/vdpa/ifcvf/ifcvf_main.c
index 7c2f64ca2163..28c71eef1d2b 100644
--- a/drivers/vdpa/ifcvf/ifcvf_main.c
+++ b/drivers/vdpa/ifcvf/ifcvf_main.c
@@ -212,13 +212,15 @@ static u8 ifcvf_vdpa_get_status(struct vdpa_device *vdpa_dev)
  
  static void ifcvf_vdpa_set_status(struct vdpa_device *vdpa_dev, u8 status)
  {
+	struct ifcvf_vdpa_mgmt_dev *ifcvf_mgmt_dev;
  	struct ifcvf_adapter *adapter;
  	struct ifcvf_hw *vf;
  	u8 status_old;
  	int ret;
  
  	vf  = vdpa_to_vf(vdpa_dev);
-	adapter = dev_get_drvdata(vdpa_dev->dev.parent);

If this is a fix for patch 2, you need to squash this into that one.

Any reason that vdpa_to_adapter() can't work?

And I see:

+struct ifcvf_vdpa_mgmt_dev {
+	struct vdpa_mgmt_dev mdev;
+	struct ifcvf_adapter *adapter;
+	struct pci_dev *pdev;
+};

What's the reason for having a adapter pointer here?

Thanks

+	ifcvf_mgmt_dev = dev_get_drvdata(vdpa_dev->dev.parent);
+	adapter = ifcvf_mgmt_dev->adapter;
  	status_old = ifcvf_get_status(vf);
  
  	if (status_old == status)
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