vDPA/ifcvf: decouple vq IRQ releasers from the adapter

commit 004cbcabab46d9346e2524c4eedd71ea57fe4f3c upstream.

This commit decouples the IRQ releasers from the
adapter, so that these functions could be
safely invoked once probe

Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com>
Cc: stable@vger.kernel.org
Message-Id: <20221125145724.1129962-5-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/vdpa/ifcvf/ifcvf_main.c b/drivers/vdpa/ifcvf/ifcvf_main.c
index 860f72b..a96c0a3 100644 (file)
--- a/drivers/vdpa/ifcvf/ifcvf_main.c
+++ b/drivers/vdpa/ifcvf/ifcvf_main.c
@@ -69,10 +69,9 @@ static void ifcvf_free_irq_vectors(void *data)
        pci_free_irq_vectors(data);
 }
 
-static void ifcvf_free_per_vq_irq(struct ifcvf_adapter *adapter)
+static void ifcvf_free_per_vq_irq(struct ifcvf_hw *vf)
 {
-       struct pci_dev *pdev = adapter->pdev;
-       struct ifcvf_hw *vf = &adapter->vf;
+       struct pci_dev *pdev = vf->pdev;
        int i;
 
        for (i = 0; i < vf->nr_vring; i++) {
@@ -83,10 +82,9 @@ static void ifcvf_free_per_vq_irq(struct ifcvf_adapter *adapter)
        }
 }
 
-static void ifcvf_free_vqs_reused_irq(struct ifcvf_adapter *adapter)
+static void ifcvf_free_vqs_reused_irq(struct ifcvf_hw *vf)
 {
-       struct pci_dev *pdev = adapter->pdev;
-       struct ifcvf_hw *vf = &adapter->vf;
+       struct pci_dev *pdev = vf->pdev;
 
        if (vf->vqs_reused_irq != -EINVAL) {
                devm_free_irq(&pdev->dev, vf->vqs_reused_irq, vf);
@@ -95,14 +93,12 @@ static void ifcvf_free_vqs_reused_irq(struct ifcvf_adapter *adapter)
 
 }
 
-static void ifcvf_free_vq_irq(struct ifcvf_adapter *adapter)
+static void ifcvf_free_vq_irq(struct ifcvf_hw *vf)
 {
-       struct ifcvf_hw *vf = &adapter->vf;
-
        if (vf->msix_vector_status == MSIX_VECTOR_PER_VQ_AND_CONFIG)
-               ifcvf_free_per_vq_irq(adapter);
+               ifcvf_free_per_vq_irq(vf);
        else
-               ifcvf_free_vqs_reused_irq(adapter);
+               ifcvf_free_vqs_reused_irq(vf);
 }
 
 static void ifcvf_free_config_irq(struct ifcvf_adapter *adapter)
@@ -126,8 +122,9 @@ static void ifcvf_free_config_irq(struct ifcvf_adapter *adapter)
 static void ifcvf_free_irq(struct ifcvf_adapter *adapter)
 {
        struct pci_dev *pdev = adapter->pdev;
+       struct ifcvf_hw *vf = &adapter->vf;
 
-       ifcvf_free_vq_irq(adapter);
+       ifcvf_free_vq_irq(vf);
        ifcvf_free_config_irq(adapter);
        ifcvf_free_irq_vectors(pdev);
 }