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Commit 2d2917f7 authored by Alex Williamson's avatar Alex Williamson Committed by Bjorn Helgaas
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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: default avatarAlex Williamson <alex.williamson@redhat.com>
Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
parent c6a44ba9

drivers/pci/pci.c

+2 −1
Original line number Diff line number Diff line
@@ -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

 * resets.

 */

static bool pcie_has_flr(struct pci_dev *dev)

bool pcie_has_flr(struct pci_dev *dev)

{

	u32 cap;
@@ -4049,6 +4049,7 @@ static bool pcie_has_flr(struct pci_dev *dev) 
	pcie_capability_read_dword(dev, PCI_EXP_DEVCAP, &cap);

	return cap & PCI_EXP_DEVCAP_FLR;

}

EXPORT_SYMBOL_GPL(pcie_has_flr);



/**

 * pcie_flr - initiate a PCIe function level reset

include/linux/pci.h

+1 −0
Original line number Diff line number Diff line
@@ -1090,6 +1090,7 @@ u32 pcie_bandwidth_available(struct pci_dev *dev, struct pci_dev **limiting_dev, 
			     enum pci_bus_speed *speed,

			     enum pcie_link_width *width);

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 __pci_reset_function_locked(struct pci_dev *dev);

int pci_reset_function(struct pci_dev *dev);