diff mbox series

PCI/IOV: update num_VFs earlier

Message ID 20190325081803.30094-1-pierre.cregut@orange.com (mailing list archive)
State Superseded, archived
Headers show
Series PCI/IOV: update num_VFs earlier | expand

Commit Message

CREGUT Pierre IMT/OLN March 25, 2019, 8:18 a.m. UTC 
Ensure that iov->num_VFs is set before a netlink message is sent when
the number of VFs is changed. Otherwise /sys/.../sriov_numvfs is not
updated when read immediately after receiving the netlink message.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=202991
Signed-off-by: Pierre Crégut <pierre.cregut@orange.com>
---
 drivers/pci/iov.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c
index 3aa115ed3a65..a9655c10e87f 100644
--- a/drivers/pci/iov.c
+++ b/drivers/pci/iov.c
@@ -351,6 +351,7 @@  static int sriov_enable(struct pci_dev *dev, int nr_virtfn)
 		goto err_pcibios;
 	}
 
+	iov->num_VFs = nr_virtfn;
 	pci_iov_set_numvfs(dev, nr_virtfn);
 	iov->ctrl |= PCI_SRIOV_CTRL_VFE | PCI_SRIOV_CTRL_MSE;
 	pci_cfg_access_lock(dev);
@@ -363,7 +364,6 @@  static int sriov_enable(struct pci_dev *dev, int nr_virtfn)
 		goto err_pcibios;
 
 	kobject_uevent(&dev->dev.kobj, KOBJ_CHANGE);
-	iov->num_VFs = nr_virtfn;
 
 	return 0;
 
@@ -379,6 +379,7 @@  static int sriov_enable(struct pci_dev *dev, int nr_virtfn)
 	if (iov->link != dev->devfn)
 		sysfs_remove_link(&dev->dev.kobj, "dep_link");
 
+	iov->num_VFs = 0;
 	pci_iov_set_numvfs(dev, 0);
 	return rc;
 }