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PCI/MSI: Move power state check out of pci_msi_supported()

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27e20603c5 ("PCI/MSI: Move D0 check into pci_msi_check_device()")
moved the power state check into pci_msi_check_device(), which was
subsequently renamed to pci_msi_supported().  This didn't change the
behavior, since both callers checked the power state.

However, it doesn't fit the current "pci_msi_supported()" name, which
should return what the device is capable of, independent of the power
state.

Move the power state check back into the callers for readability.  No
functional change intended.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Bjorn Helgaas 2019-10-14 16:17:05 -05:00
parent d41b0e64d2
commit 901c4ddbe2
1 changed files with 3 additions and 3 deletions
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6
drivers/pci/msi.c
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@ -861,7 +861,7 @@ static int pci_msi_supported(struct pci_dev *dev, int nvec)
if (!pci_msi_enable)
return 0;
if (!dev || dev->no_msi || dev->current_state != PCI_D0)
if (!dev || dev->no_msi)
return 0;
/*
@ -972,7 +972,7 @@ static int __pci_enable_msix(struct pci_dev *dev, struct msix_entry *entries,
int nr_entries;
int i, j;
if (!pci_msi_supported(dev, nvec))
if (!pci_msi_supported(dev, nvec) || dev->current_state != PCI_D0)
return -EINVAL;
nr_entries = pci_msix_vec_count(dev);
@ -1058,7 +1058,7 @@ static int __pci_enable_msi_range(struct pci_dev *dev, int minvec, int maxvec,
int nvec;
int rc;
if (!pci_msi_supported(dev, minvec))
if (!pci_msi_supported(dev, minvec) || dev->current_state != PCI_D0)
return -EINVAL;
/* Check whether driver already requested MSI-X IRQs */