[PATCH v2 1/5] PCI: Use pcie_get_link_speed() in pci.c

[Hans Zhang <18255117159@163.com>]

Replace the to_pcie_link_speed() wrapper with pcie_get_link_speed() in
pcie_link_bandwidth_mbps() and pcie_bandwidth_available(), and remove
the now-unused wrapper.  pcie_get_link_speed() performs the same lookup
with bounds checking and is already exported.

Signed-off-by: Hans Zhang <18255117159@163.com>
---
 drivers/pci/pci.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 7c6f2aba8144..92ede1768caf 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -6025,11 +6025,6 @@ int pcie_set_mps(struct pci_dev *dev, int mps)
 }
 EXPORT_SYMBOL(pcie_set_mps);
 
-static enum pci_bus_speed to_pcie_link_speed(u16 lnksta)
-{
-	return pcie_link_speed[FIELD_GET(PCI_EXP_LNKSTA_CLS, lnksta)];
-}
-
 /**
  * pcie_link_bandwidth_mbps - get the current bandwidth of a single PCIe link
  * @pdev: PCI device to query
@@ -6048,7 +6043,7 @@ int pcie_link_bandwidth_mbps(struct pci_dev *pdev)
 	if (err)
 		return pcibios_err_to_errno(err);
 
-	speed = pcie_dev_speed_mbps(to_pcie_link_speed(lnksta));
+	speed = pcie_dev_speed_mbps(pcie_get_link_speed(FIELD_GET(PCI_EXP_LNKSTA_CLS, lnksta)));
 	if (speed < 0)
 		return speed;
 
@@ -6089,7 +6084,7 @@ u32 pcie_bandwidth_available(struct pci_dev *dev, struct pci_dev **limiting_dev,
 	while (dev) {
 		pcie_capability_read_word(dev, PCI_EXP_LNKSTA, &lnksta);
 
-		next_speed = to_pcie_link_speed(lnksta);
+		next_speed = pcie_get_link_speed(FIELD_GET(PCI_EXP_LNKSTA_CLS, lnksta));
 		next_width = FIELD_GET(PCI_EXP_LNKSTA_NLW, lnksta);
 
 		next_bw = next_width * PCIE_SPEED2MBS_ENC(next_speed);
-- 
2.43.0