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authorMika Westerberg <mika.westerberg@linux.intel.com>2018-05-28 15:47:56 +0300
committerBjorn Helgaas <bhelgaas@google.com>2018-06-04 12:08:06 -0500
commit70f7880d2d3175cecc73b0b41fd07e58e6df5fff (patch)
tree7df6c3aeb28f649c2fd8bd9f1a1f3a2bba947090 /drivers
parent14fe5951b667872154d753e451dea043050e9006 (diff)
PCI: Improve pci_scan_bridge() and pci_scan_bridge_extend() doc
It is not immediately clear what the two functions actually return so add kernel-doc comment explaining it a bit better. Suggested-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/pci/probe.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 6d3cae0362c9..fe5b05bd1887 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -999,6 +999,8 @@ static unsigned int pci_scan_child_bus_extend(struct pci_bus *bus,
* already configured by the BIOS and after we are done with all of
* them, we proceed to assigning numbers to the remaining buses in
* order to avoid overlaps between old and new bus numbers.
+ *
+ * Return: New subordinate number covering all buses behind this bridge.
*/
static int pci_scan_bridge_extend(struct pci_bus *bus, struct pci_dev *dev,
int max, unsigned int available_buses,
@@ -1231,6 +1233,8 @@ out:
* already configured by the BIOS and after we are done with all of
* them, we proceed to assigning numbers to the remaining buses in
* order to avoid overlaps between old and new bus numbers.
+ *
+ * Return: New subordinate number covering all buses behind this bridge.
*/
int pci_scan_bridge(struct pci_bus *bus, struct pci_dev *dev, int max, int pass)
{