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PCI: Add pcie_get_speed_cap() to find max supported link speed
authorTal Gilboa <talgi@mellanox.com>
Fri, 30 Mar 2018 12:44:05 +0000 (07:44 -0500)
committerBjorn Helgaas <bhelgaas@google.com>
Fri, 30 Mar 2018 20:33:38 +0000 (15:33 -0500)
commit6cf57be0f78e289aaf236f8bc55c40ea6c422c75
tree6a139948424dfd0d349b2baf06bdcd4370285427
parent1acfb9b7ee0b1881bb8e875b6757976e48293ec4
PCI: Add pcie_get_speed_cap() to find max supported link speed

Add pcie_get_speed_cap() to find the max link speed supported by a device.
Change max_link_speed_show() to use pcie_get_speed_cap().

Signed-off-by: Tal Gilboa <talgi@mellanox.com>
[bhelgaas: return speed directly instead of error and *speed, don't export
outside drivers/pci]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
drivers/pci/pci-sysfs.c
drivers/pci/pci.c
drivers/pci/pci.h