Re: [PATCH v3 02/13] video: fbdev: core: Fix kernel-doc warnings in fbmon + fb_notify

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Hi

Am 06.12.20 um 20:37 schrieb Randy Dunlap:
On 12/6/20 11:02 AM, Sam Ravnborg wrote:
Fix kernel-doc warnings reported when using W=1

v2:
   - Improve subject (Lee)

v3:
   - Add RETURNS documentation (Thomas)

Hi Sam,

Yes, RETURNS: will work. It just looks like any kernel-doc section name,
such as Context: or Note:.
However, the documented format for return info is "Return:".
(see Documentation/doc-guide/kernel-doc.rst)

Thanks for the note. I asked for RETURNS: because the rest of the file appears to be using it. Returns: is certainly the better alternative. I didn't know there was a difference.

Best regards
Thomas



Signed-off-by: Sam Ravnborg <sam@xxxxxxxxxxxx>
Cc: Lee Jones <lee.jones@xxxxxxxxxx>
Cc: Sam Ravnborg <sam@xxxxxxxxxxxx>
Cc: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@xxxxxxxxxxx>
Cc: Daniel Vetter <daniel.vetter@xxxxxxxx>
Cc: "Alexander A. Klimov" <grandmaster@xxxxxxxxxxxx>
---
  drivers/video/fbdev/core/fb_notify.c | 10 ++++++++++
  drivers/video/fbdev/core/fbmon.c     |  2 +-
  2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/drivers/video/fbdev/core/fb_notify.c b/drivers/video/fbdev/core/fb_notify.c
index 74c2da528884..4e39c61fae1f 100644
--- a/drivers/video/fbdev/core/fb_notify.c
+++ b/drivers/video/fbdev/core/fb_notify.c
@@ -19,6 +19,9 @@ static BLOCKING_NOTIFIER_HEAD(fb_notifier_list);
  /**
   *	fb_register_client - register a client notifier
   *	@nb: notifier block to callback on events
+ *
+ *	RETURNS:
+ *	0 on success, negative error code on failure.
   */
  int fb_register_client(struct notifier_block *nb)
  {
@@ -29,6 +32,9 @@ EXPORT_SYMBOL(fb_register_client);
  /**
   *	fb_unregister_client - unregister a client notifier
   *	@nb: notifier block to callback on events
+ *
+ *	RETURNS:
+ *	0 on success, negative error code on failure.
   */
  int fb_unregister_client(struct notifier_block *nb)
  {
@@ -38,7 +44,11 @@ EXPORT_SYMBOL(fb_unregister_client);
/**
   * fb_notifier_call_chain - notify clients of fb_events
+ * @val: value passed to callback
+ * @v: pointer passed to callback
   *
+ * RETURNS:
+ * The return value of the last notifier function
   */
  int fb_notifier_call_chain(unsigned long val, void *v)
  {
diff --git a/drivers/video/fbdev/core/fbmon.c b/drivers/video/fbdev/core/fbmon.c
index 1bf82dbc9e3c..b0e690f41025 100644
--- a/drivers/video/fbdev/core/fbmon.c
+++ b/drivers/video/fbdev/core/fbmon.c
@@ -605,6 +605,7 @@ static void get_detailed_timing(unsigned char *block,
   * fb_create_modedb - create video mode database
   * @edid: EDID data
   * @dbsize: database size
+ * @specs: monitor specifications, may be NULL
   *
   * RETURNS: struct fb_videomode, @dbsize contains length of database
   *



--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer

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