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PCI: Export pcie_has_flr() 

pcie_flr() suggests pcie_has_flr() to ensure that PCIe FLR support is
present prior to calling.  pcie_flr() is exported while pcie_has_flr()
is not.  Resolve this.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Alex Williamson 2018-08-09 14:04:14 -06:00 committed by Bjorn Helgaas
parent c6a44ba950
commit 2d2917f774
2 changed files with 3 additions and 1 deletions
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3
drivers/pci/pci.c
View File

@ -4039,7 +4039,7 @@ static int pci_dev_wait(struct pci_dev *dev, char *reset_type, int timeout)
* Returns true if the device advertises support for PCIe function level * Returns true if the device advertises support for PCIe function level
* resets. * resets.
*/ */
static bool pcie_has_flr(struct pci_dev *dev) bool pcie_has_flr(struct pci_dev *dev)
{ {
u32 cap; u32 cap;
@ -4049,6 +4049,7 @@ static bool pcie_has_flr(struct pci_dev *dev)
pcie_capability_read_dword(dev, PCI_EXP_DEVCAP, &cap); pcie_capability_read_dword(dev, PCI_EXP_DEVCAP, &cap);
return cap & PCI_EXP_DEVCAP_FLR; return cap & PCI_EXP_DEVCAP_FLR;
} }
EXPORT_SYMBOL_GPL(pcie_has_flr);
/** /**
* pcie_flr - initiate a PCIe function level reset * pcie_flr - initiate a PCIe function level reset

1
include/linux/pci.h
View File

@ -1090,6 +1090,7 @@ u32 pcie_bandwidth_available(struct pci_dev *dev, struct pci_dev **limiting_dev,
enum pci_bus_speed *speed, enum pci_bus_speed *speed,
enum pcie_link_width *width); enum pcie_link_width *width);
void pcie_print_link_status(struct pci_dev *dev); void pcie_print_link_status(struct pci_dev *dev);
bool pcie_has_flr(struct pci_dev *dev);
int pcie_flr(struct pci_dev *dev); int pcie_flr(struct pci_dev *dev);
int __pci_reset_function_locked(struct pci_dev *dev); int __pci_reset_function_locked(struct pci_dev *dev);
int pci_reset_function(struct pci_dev *dev); int pci_reset_function(struct pci_dev *dev);