This looks to basically be a duplicate of what Alex Williamson posted 8 days ago: https://lore.kernel.org/linux-pci/20190604143617.0a226555@xxxxxxx/ Alex says Hao Zheng had a similar patch as well. On Wed, Jun 12, 2019 at 12:08 PM <sathyanarayanan.kuppuswamy@xxxxxxxxxxxxxxx> wrote: > > From: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@xxxxxxxxxxxxxxx> > > Commit 975bb8b4dc93 ("PCI/IOV: Use VF0 cached config space size for > other VFs") calculates and caches the cfg_size for VF0 device before > initializing the pcie_cap of the device which results in using incorrect > cfg_size for all VF devices > 0. So set pcie_cap of the device before > calculating the cfg_size of VF0 device. > > Fixes: 975bb8b4dc93 ("PCI/IOV: Use VF0 cached config space size for > other VFs") > Cc: Ashok Raj <ashok.raj@xxxxxxxxx> > Suggested-by: Mike Campin <mike.campin@xxxxxxxxx> > Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@xxxxxxxxxxxxxxx> > --- > > Changes since v1: > * Fixed a typo in commit message. > > drivers/pci/iov.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c > index 3aa115ed3a65..2869011c0e35 100644 > --- a/drivers/pci/iov.c > +++ b/drivers/pci/iov.c > @@ -160,6 +160,7 @@ int pci_iov_add_virtfn(struct pci_dev *dev, int id) > virtfn->device = iov->vf_device; > virtfn->is_virtfn = 1; > virtfn->physfn = pci_dev_get(dev); > + virtfn->pcie_cap = pci_find_capability(virtfn, PCI_CAP_ID_EXP); > > if (id == 0) > pci_read_vf_config_common(virtfn); > -- > 2.21.0 >
