Improve pci_set_default_link_state() documentation:
- Note the link state may get changed if the default policy is in use
- Better follow kerneldoc formatting guidelines (separate description
block and return entries)
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx>
---
drivers/pci/pcie/aspm.c | 16 ++++++++++------
1 file changed, 10 insertions(+), 6 deletions(-)
diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c
index 9fa8ab6eb7a4..33ee2b563a39 100644
--- a/drivers/pci/pcie/aspm.c
+++ b/drivers/pci/pcie/aspm.c
@@ -1157,14 +1157,18 @@ int pci_disable_link_state(struct pci_dev *pdev, int state)
EXPORT_SYMBOL(pci_disable_link_state);
/**
- * pci_set_default_link_state - Clear and set the default device link state so
- * that the link may be allowed to enter the specified states. Note that if the
- * BIOS didn't grant ASPM control to the OS, this does nothing because we can't
- * touch the LNKCTL register. Also note that this does not enable states
- * disabled by pci_disable_link_state(). Return 0 or a negative errno.
- *
+ * pci_set_default_link_state - Set the default device link state
* @pdev: PCI device
* @state: Mask of ASPM link states to enable
+ *
+ * Clear and set the default device link state so that the link may be
+ * allowed to enter the specified states. If the default policy is in use,
+ * the link state may also be updated to reflect the new default link state.
+ * Note that if the BIOS didn't grant ASPM control to the OS, this does
+ * nothing because we can't touch the LNKCTL register. Also note that this
+ * does not enable states disabled by pci_disable_link_state().
+ *
+ * Return: 0 or a negative errno.
*/
int pci_set_default_link_state(struct pci_dev *pdev, int state)
{
--
2.30.2
