[PATCH 4/5] PCI: hotplug: Fix kernel-doc formatting and add missing documentation

["Krzysztof Wilczyński" <kw@linux.com>]

Fix kernel-doc formatting and add missing documentation for the
parameters "bus" of the get_slot_mapping() function.

Add documentation for missing "t" and remove surplus "slot" parameter of
the cpqhp_pushbutton_thread() function.

Also add missing documentation for "inband_presence_disabled" member of
the struct controller, and the "slot_list" and "pci_slot" members of the
struct hotplug_slot.

Thus, resolve build time warnings related to kernel-doc:

  drivers/pci/hotplug/cpqphp_core.c:308: warning: Function parameter or member 'bus' not described in 'get_slot_mapping'
  drivers/pci/hotplug/cpqphp_core.c:308: warning: Function parameter or member 'bus_num' not described in 'get_slot_mapping'
  drivers/pci/hotplug/cpqphp_core.c:308: warning: Function parameter or member 'dev_num' not described in 'get_slot_mapping'
  drivers/pci/hotplug/cpqphp_core.c:308: warning: Function parameter or member 'slot' not described in 'get_slot_mapping'

  drivers/pci/hotplug/cpqphp_ctrl.c:1887: warning: Function parameter or member 't' not described in 'cpqhp_pushbutton_thread'
  drivers/pci/hotplug/cpqphp_ctrl.c:1887: warning: Excess function parameter 'slot' description in 'cpqhp_pushbutton_thread'

  drivers/pci/hotplug/pciehp.h:110: warning: Function parameter or member 'inband_presence_disabled' not described in 'controller'

  include/linux/pci_hotplug.h:64: warning: Function parameter or member 'slot_list' not described in 'hotplug_slot'
  include/linux/pci_hotplug.h:64: warning: Function parameter or member 'pci_slot' not described in 'hotplug_slot'

No change to functionality intended.

Signed-off-by: Krzysztof Wilczyński <kw@linux.com>
---
 drivers/pci/hotplug/cpqphp_core.c | 7 ++++---
 drivers/pci/hotplug/cpqphp_ctrl.c | 2 +-
 drivers/pci/hotplug/pciehp.h      | 3 +++
 include/linux/pci_hotplug.h       | 2 ++
 4 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/drivers/pci/hotplug/cpqphp_core.c b/drivers/pci/hotplug/cpqphp_core.c
index b8aacb41a83c..f99a7927e5a8 100644
--- a/drivers/pci/hotplug/cpqphp_core.c
+++ b/drivers/pci/hotplug/cpqphp_core.c
@@ -296,9 +296,10 @@ static int ctrl_slot_cleanup(struct controller *ctrl)
  *
  * Won't work for more than one PCI-PCI bridge in a slot.
  *
- * @bus_num - bus number of PCI device
- * @dev_num - device number of PCI device
- * @slot - Pointer to u8 where slot number will	be returned
+ * @bus: pointer to the PCI bus structure
+ * @bus_num: bus number of PCI device
+ * @dev_num: device number of PCI device
+ * @slot: Pointer to u8 where slot number will	be returned
  *
  * Output:	SUCCESS or FAILURE
  */
diff --git a/drivers/pci/hotplug/cpqphp_ctrl.c b/drivers/pci/hotplug/cpqphp_ctrl.c
index 68de958a9be8..b881cc2b01c8 100644
--- a/drivers/pci/hotplug/cpqphp_ctrl.c
+++ b/drivers/pci/hotplug/cpqphp_ctrl.c
@@ -1877,7 +1877,7 @@ static void interrupt_event_handler(struct controller *ctrl)
 
 /**
  * cpqhp_pushbutton_thread - handle pushbutton events
- * @slot: target slot (struct)
+ * @t: pointer to struct timer_list which holds all timer related callbacks
  *
  * Scheduled procedure to handle blocking stuff for the pushbuttons.
  * Handles all pending events and exits.
diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h
index 4fd200d8b0a9..ab57c11aa58a 100644
--- a/drivers/pci/hotplug/pciehp.h
+++ b/drivers/pci/hotplug/pciehp.h
@@ -47,6 +47,9 @@ extern int pciehp_poll_time;
  * struct controller - PCIe hotplug controller
  * @pcie: pointer to the controller's PCIe port service device
  * @slot_cap: cached copy of the Slot Capabilities register
+ * @inband_presence_disabled: whether In-Band Presence Detect Disable is
+ * supported by the controller and disabled per spec recommendation
+ * (PCIe r5.0, appendix I implementation note)
  * @slot_ctrl: cached copy of the Slot Control register
  * @ctrl_lock: serializes writes to the Slot Control register
  * @cmd_started: jiffies when the Slot Control register was last written;
diff --git a/include/linux/pci_hotplug.h b/include/linux/pci_hotplug.h
index b482e42d7153..2dac431d94ac 100644
--- a/include/linux/pci_hotplug.h
+++ b/include/linux/pci_hotplug.h
@@ -50,6 +50,8 @@ struct hotplug_slot_ops {
 /**
  * struct hotplug_slot - used to register a physical slot with the hotplug pci core
  * @ops: pointer to the &struct hotplug_slot_ops to be used for this slot
+ * @slot_list: internal list used to track hotplug PCI slots
+ * @pci_slot: represents a physical slot
  * @owner: The module owner of this structure
  * @mod_name: The module name (KBUILD_MODNAME) of this structure
  */
-- 
2.32.0