[PATCH 1/8] PCI: endpoint: Fix kernel-doc formatting and add missing documentation

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

Add missing documentation for the parameters "ntb_epc", "type", "dev",
and "group" of the following functions:

  - epf_ntb_add_cfs()
  - epf_ntb_alloc_peer_mem()
  - epf_ntb_config_sspad_bar_clear(),
  - epf_ntb_config_sspad_bar_set()
  - epf_ntb_peer_spad_bar_clear()
  - epf_ntb_peer_spad_bar_set()
  - pci_epc_remove_epf()

Remove surplus parameter from the epf_ntb_init_epc_bar() function.

Additionally, fix a non-compliant kernel-doc at the top of the files
pci-epf-ntb.c and pci-epf-test.c, and resolve number of build time
warnings related to kernel-doc:

 drivers/pci/endpoint/functions/pci-epf-ntb.c:1363: warning: Function
 parameter or member 'dev' not described in 'epf_ntb_alloc_peer_mem'

 drivers/pci/endpoint/functions/pci-epf-ntb.c:2046: warning: Function
 parameter or member 'group' not described in 'epf_ntb_add_cfs'

 drivers/pci/endpoint/functions/pci-epf-ntb.c:1670: warning: Excess
 function parameter 'type' description in 'epf_ntb_init_epc_bar'

 drivers/pci/endpoint/functions/pci-epf-ntb.c:45: warning: cannot
 understand function prototype: 'struct workqueue_struct
 *kpcintb_workqueue; '

 drivers/pci/endpoint/functions/pci-epf-ntb.c:727: warning: Excess
 function parameter 'ntb' description in 'epf_ntb_peer_spad_bar_clear'

 drivers/pci/endpoint/functions/pci-epf-ntb.c:727: warning: Function
 parameter or member 'ntb_epc' not described in
 'epf_ntb_peer_spad_bar_clear'

 drivers/pci/endpoint/functions/pci-epf-ntb.c:771: warning: Function
 parameter or member 'type' not described in 'epf_ntb_peer_spad_bar_set'

 drivers/pci/endpoint/functions/pci-epf-ntb.c:839: warning: Excess
 function parameter 'ntb' description in
 'epf_ntb_config_sspad_bar_clear'

 drivers/pci/endpoint/functions/pci-epf-ntb.c:839: warning: Function
 parameter or member 'ntb_epc' not described in
 'epf_ntb_config_sspad_bar_clear'

 drivers/pci/endpoint/functions/pci-epf-ntb.c:882: warning: Excess
 function parameter 'ntb' description in 'epf_ntb_config_sspad_bar_set'

 drivers/pci/endpoint/functions/pci-epf-ntb.c:882: warning: Function
 parameter or member 'ntb_epc' not described in
 'epf_ntb_config_sspad_bar_set'

 drivers/pci/endpoint/functions/pci-epf-test.c:22: warning: expecting
 prototype for Test driver to test endpoint functionality(). Prototype
 was for IRQ_TYPE_LEGACY() instead

No change to functionality intended.

Signed-off-by: Krzysztof Wilczyński <kw@linux.com>
---
 drivers/pci/endpoint/functions/pci-epf-ntb.c  | 16 +++++++++++-----
 drivers/pci/endpoint/functions/pci-epf-test.c |  2 +-
 drivers/pci/endpoint/pci-epc-core.c           |  2 ++
 3 files changed, 14 insertions(+), 6 deletions(-)

diff --git a/drivers/pci/endpoint/functions/pci-epf-ntb.c b/drivers/pci/endpoint/functions/pci-epf-ntb.c
index 338148cf56f5..bce274d02dcf 100644
--- a/drivers/pci/endpoint/functions/pci-epf-ntb.c
+++ b/drivers/pci/endpoint/functions/pci-epf-ntb.c
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: GPL-2.0
-/**
+/*
  * Endpoint Function Driver to implement Non-Transparent Bridge functionality
  *
  * Copyright (C) 2020 Texas Instruments
@@ -696,7 +696,8 @@ static void epf_ntb_cmd_handler(struct work_struct *work)
 
 /**
  * epf_ntb_peer_spad_bar_clear() - Clear Peer Scratchpad BAR
- * @ntb: NTB device that facilitates communication between HOST1 and HOST2
+ * @ntb_epc: EPC associated with one of the HOST which holds peer's outbound
+ *	     address.
  *
  *+-----------------+------->+------------------+        +-----------------+
  *|       BAR0      |        |  CONFIG REGION   |        |       BAR0      |
@@ -740,6 +741,7 @@ static void epf_ntb_peer_spad_bar_clear(struct epf_ntb_epc *ntb_epc)
 /**
  * epf_ntb_peer_spad_bar_set() - Set peer scratchpad BAR
  * @ntb: NTB device that facilitates communication between HOST1 and HOST2
+ * @type: PRIMARY interface or SECONDARY interface
  *
  *+-----------------+------->+------------------+        +-----------------+
  *|       BAR0      |        |  CONFIG REGION   |        |       BAR0      |
@@ -808,7 +810,8 @@ static int epf_ntb_peer_spad_bar_set(struct epf_ntb *ntb,
 
 /**
  * epf_ntb_config_sspad_bar_clear() - Clear Config + Self scratchpad BAR
- * @ntb: NTB device that facilitates communication between HOST1 and HOST2
+ * @ntb_epc: EPC associated with one of the HOST which holds peer's outbound
+ *	     address.
  *
  * +-----------------+------->+------------------+        +-----------------+
  * |       BAR0      |        |  CONFIG REGION   |        |       BAR0      |
@@ -851,7 +854,8 @@ static void epf_ntb_config_sspad_bar_clear(struct epf_ntb_epc *ntb_epc)
 
 /**
  * epf_ntb_config_sspad_bar_set() - Set Config + Self scratchpad BAR
- * @ntb: NTB device that facilitates communication between HOST1 and HOST2
+ * @ntb_epc: EPC associated with one of the HOST which holds peer's outbound
+ *	     address.
  *
  * +-----------------+------->+------------------+        +-----------------+
  * |       BAR0      |        |  CONFIG REGION   |        |       BAR0      |
@@ -1312,6 +1316,7 @@ static int epf_ntb_configure_interrupt(struct epf_ntb *ntb,
 
 /**
  * epf_ntb_alloc_peer_mem() - Allocate memory in peer's outbound address space
+ * @dev: The PCI device.
  * @ntb_epc: EPC associated with one of the HOST whose BAR holds peer's outbound
  *   address
  * @bar: BAR of @ntb_epc in for which memory has to be allocated (could be
@@ -1660,7 +1665,6 @@ static int epf_ntb_init_epc_bar_interface(struct epf_ntb *ntb,
  * epf_ntb_init_epc_bar() - Identify BARs to be used for each of the NTB
  * constructs (scratchpad region, doorbell, memorywindow)
  * @ntb: NTB device that facilitates communication between HOST1 and HOST2
- * @type: PRIMARY interface or SECONDARY interface
  *
  * Wrapper to epf_ntb_init_epc_bar_interface() to identify the free BARs
  * to be used for each of BAR_CONFIG, BAR_PEER_SPAD, BAR_DB_MW1, BAR_MW2,
@@ -2037,6 +2041,8 @@ static const struct config_item_type ntb_group_type = {
 /**
  * epf_ntb_add_cfs() - Add configfs directory specific to NTB
  * @epf: NTB endpoint function device
+ * @group: A pointer to the config_group structure referencing a group of
+ *	   config_items of a specific type that belong to a specific sub-system.
  *
  * Add configfs directory specific to NTB. This directory will hold
  * NTB specific properties like db_count, spad_count, num_mws etc.,
diff --git a/drivers/pci/endpoint/functions/pci-epf-test.c b/drivers/pci/endpoint/functions/pci-epf-test.c
index c0ac4e9cbe72..63d5f5c6e3e0 100644
--- a/drivers/pci/endpoint/functions/pci-epf-test.c
+++ b/drivers/pci/endpoint/functions/pci-epf-test.c
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: GPL-2.0
-/**
+/*
  * Test driver to test endpoint functionality
  *
  * Copyright (C) 2017 Texas Instruments
diff --git a/drivers/pci/endpoint/pci-epc-core.c b/drivers/pci/endpoint/pci-epc-core.c
index cc8f9eb2b177..adec9bee72cf 100644
--- a/drivers/pci/endpoint/pci-epc-core.c
+++ b/drivers/pci/endpoint/pci-epc-core.c
@@ -594,6 +594,8 @@ EXPORT_SYMBOL_GPL(pci_epc_add_epf);
  * pci_epc_remove_epf() - remove PCI endpoint function from endpoint controller
  * @epc: the EPC device from which the endpoint function should be removed
  * @epf: the endpoint function to be removed
+ * @type: identifies if the EPC is connected to the primary or secondary
+ *        interface of EPF
  *
  * Invoke to remove PCI endpoint function from the endpoint controller.
  */
-- 
2.30.1