linux-kernel - [PATCH 04/20] misc: habanalabs: pci: Fix a variety of kerneldoc issues

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Date:   Mon, 29 Jun 2020 15:04:26 +0100
From:   Lee Jones <lee.jones@...aro.org>
To:     arnd@...db.de, gregkh@...uxfoundation.org
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Lee Jones <lee.jones@...aro.org>,
        Oded Gabbay <oded.gabbay@...il.com>,
        Tomer Tayar <ttayar@...ana.ai>
Subject: [PATCH 04/20] misc: habanalabs: pci: Fix a variety of kerneldoc issues

hl_pci_bars_map() has a miss-typed argument name in the function
description.  hl_pci_elbi_write() was missing documented arguments.
The headers for functions hl_pci_bars_unmap(), hl_pci_elbi_write()
and hl_pci_reset_link_through_bridge() were written in kerneldoc
format, but lack the kerneldoc identifier '/**'.  Let's promote
them so they can gain access to the checker.

These changes fix the following W=1 kernel build warnings:

 drivers/misc/habanalabs/pci.c:27: warning: Function parameter or member 'name' not described in 'hl_pci_bars_map'
 drivers/misc/habanalabs/pci.c:27: warning: Excess function parameter 'bar_name' description in 'hl_pci_bars_map'
 drivers/misc/habanalabs/pci.c:147: warning: Function parameter or member 'addr' not described in 'hl_pci_iatu_write'
 drivers/misc/habanalabs/pci.c:147: warning: Function parameter or member 'data' not described in 'hl_pci_iatu_write'
 drivers/misc/habanalabs/pci.c:324: warning: Excess function parameter 'dma_mask' description in 'hl_pci_set_dma_mask'

Cc: Oded Gabbay <oded.gabbay@...il.com>
Cc: Tomer Tayar <ttayar@...ana.ai>
Signed-off-by: Lee Jones <lee.jones@...aro.org>
---
 drivers/misc/habanalabs/pci.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/misc/habanalabs/pci.c b/drivers/misc/habanalabs/pci.c
index 9f634ef6f5b37..24073e8eb8df9 100644
--- a/drivers/misc/habanalabs/pci.c
+++ b/drivers/misc/habanalabs/pci.c
@@ -15,7 +15,7 @@
 /**
  * hl_pci_bars_map() - Map PCI BARs.
  * @hdev: Pointer to hl_device structure.
- * @bar_name: Array of BAR names.
+ * @name: Array of BAR names.
  * @is_wc: Array with flag per BAR whether a write-combined mapping is needed.
  *
  * Request PCI regions and map them to kernel virtual addresses.
@@ -61,7 +61,7 @@ int hl_pci_bars_map(struct hl_device *hdev, const char * const name[3],
 	return rc;
 }
 
-/*
+/**
  * hl_pci_bars_unmap() - Unmap PCI BARS.
  * @hdev: Pointer to hl_device structure.
  *
@@ -80,9 +80,11 @@ static void hl_pci_bars_unmap(struct hl_device *hdev)
 	pci_release_regions(pdev);
 }
 
-/*
+/**
  * hl_pci_elbi_write() - Write through the ELBI interface.
  * @hdev: Pointer to hl_device structure.
+ * @addr: Address to write to
+ * @data: Data to write
  *
  * Return: 0 on success, negative value for failure.
  */
@@ -140,6 +142,8 @@ static int hl_pci_elbi_write(struct hl_device *hdev, u64 addr, u32 data)
 /**
  * hl_pci_iatu_write() - iatu write routine.
  * @hdev: Pointer to hl_device structure.
+ * @addr: Address to write to
+ * @data: Data to write
  *
  * Return: 0 on success, negative value for failure.
  */
@@ -161,7 +165,7 @@ int hl_pci_iatu_write(struct hl_device *hdev, u32 addr, u32 data)
 	return 0;
 }
 
-/*
+/**
  * hl_pci_reset_link_through_bridge() - Reset PCI link.
  * @hdev: Pointer to hl_device structure.
  */
-- 
2.25.1