diff mbox series

of: overlay: Fix kerneldoc warning in of_overlay_remove()

Message ID 20210421154548.1192903-1-robh@kernel.org
State Accepted
Commit aed4349c5d259c970f24dd8c84255ab8a5cd4a7d
Headers show
Series of: overlay: Fix kerneldoc warning in of_overlay_remove() | expand

Commit Message

Rob Herring April 21, 2021, 3:45 p.m. UTC
'*ovcs_id' causes a warning because '*' is treated as bold markup:

Documentation/devicetree/kernel-api:56: ../drivers/of/overlay.c:1184: WARNING: Inline emphasis start-string without end-string.

Fix this to use the normal '@' markup for function parameters.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Frank Rowand <frowand.list@gmail.com>
Signed-off-by: Rob Herring <robh@kernel.org>

---
 drivers/of/overlay.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

-- 
2.27.0

Comments

Frank Rowand April 21, 2021, 7:38 p.m. UTC | #1
On 4/21/21 10:45 AM, Rob Herring wrote:
> '*ovcs_id' causes a warning because '*' is treated as bold markup:

> 

> Documentation/devicetree/kernel-api:56: ../drivers/of/overlay.c:1184: WARNING: Inline emphasis start-string without end-string.

> 

> Fix this to use the normal '@' markup for function parameters.

> 

> Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>

> Cc: Frank Rowand <frowand.list@gmail.com>

> Signed-off-by: Rob Herring <robh@kernel.org>

> ---

>  drivers/of/overlay.c | 2 +-

>  1 file changed, 1 insertion(+), 1 deletion(-)

> 

> diff --git a/drivers/of/overlay.c b/drivers/of/overlay.c

> index d241273170fd..67c9aa6f14da 100644

> --- a/drivers/of/overlay.c

> +++ b/drivers/of/overlay.c

> @@ -1181,7 +1181,7 @@ static int overlay_removal_is_ok(struct overlay_changeset *remove_ovcs)

>   * If an error is returned by an overlay changeset post-remove notifier

>   * then no further overlay changeset post-remove notifier will be called.

>   *

> - * Return: 0 on success, or a negative error number.  *ovcs_id is set to

> + * Return: 0 on success, or a negative error number.  @ovcs_id is set to

>   * zero after reverting the changeset, even if a subsequent error occurs.

>   */

>  int of_overlay_remove(int *ovcs_id)

> 


The change results in incorrect information.  I am guessing that "@*ovcs_id"
would not be valid syntax (I have not tried it).  The changed version says
that the pointer ovcs_id is changed to zero, but the actual action is to
change the value pointed to by ovcs_id is changed to zero.  Is there a
valid syntax to say this?

-Frank
Rob Herring April 21, 2021, 9:03 p.m. UTC | #2
On Wed, Apr 21, 2021 at 2:38 PM Frank Rowand <frowand.list@gmail.com> wrote:
>

> On 4/21/21 10:45 AM, Rob Herring wrote:

> > '*ovcs_id' causes a warning because '*' is treated as bold markup:

> >

> > Documentation/devicetree/kernel-api:56: ../drivers/of/overlay.c:1184: WARNING: Inline emphasis start-string without end-string.

> >

> > Fix this to use the normal '@' markup for function parameters.

> >

> > Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>

> > Cc: Frank Rowand <frowand.list@gmail.com>

> > Signed-off-by: Rob Herring <robh@kernel.org>

> > ---

> >  drivers/of/overlay.c | 2 +-

> >  1 file changed, 1 insertion(+), 1 deletion(-)

> >

> > diff --git a/drivers/of/overlay.c b/drivers/of/overlay.c

> > index d241273170fd..67c9aa6f14da 100644

> > --- a/drivers/of/overlay.c

> > +++ b/drivers/of/overlay.c

> > @@ -1181,7 +1181,7 @@ static int overlay_removal_is_ok(struct overlay_changeset *remove_ovcs)

> >   * If an error is returned by an overlay changeset post-remove notifier

> >   * then no further overlay changeset post-remove notifier will be called.

> >   *

> > - * Return: 0 on success, or a negative error number.  *ovcs_id is set to

> > + * Return: 0 on success, or a negative error number.  @ovcs_id is set to

> >   * zero after reverting the changeset, even if a subsequent error occurs.

> >   */

> >  int of_overlay_remove(int *ovcs_id)

> >

>

> The change results in incorrect information.  I am guessing that "@*ovcs_id"

> would not be valid syntax (I have not tried it).  The changed version says

> that the pointer ovcs_id is changed to zero, but the actual action is to

> change the value pointed to by ovcs_id is changed to zero.  Is there a

> valid syntax to say this?


I was assuming the reader should know how parameters work in C...
Having previously beat my head with the syntax here, I went with the
easy route. Normal rSt syntax would be ``*`` to escape it. But
kerneldoc isn't normal syntax. Turns out just plain "*@ovcs_id" works
without warning and highlights the parameter (which was missing
before).

I'll update the commit.

Rob
diff mbox series

Patch

diff --git a/drivers/of/overlay.c b/drivers/of/overlay.c
index d241273170fd..67c9aa6f14da 100644
--- a/drivers/of/overlay.c
+++ b/drivers/of/overlay.c
@@ -1181,7 +1181,7 @@  static int overlay_removal_is_ok(struct overlay_changeset *remove_ovcs)
  * If an error is returned by an overlay changeset post-remove notifier
  * then no further overlay changeset post-remove notifier will be called.
  *
- * Return: 0 on success, or a negative error number.  *ovcs_id is set to
+ * Return: 0 on success, or a negative error number.  @ovcs_id is set to
  * zero after reverting the changeset, even if a subsequent error occurs.
  */
 int of_overlay_remove(int *ovcs_id)