Re: [PATCH v2] HID: uclogic: properly format kernel-doc comment for hid_dbg() wrappers

From: Randy Dunlap
Date: Tue May 31 2022 - 11:52:50 EST




On 5/31/22 02:28, Bagas Sanjaya wrote:
> Running kernel-doc script on drivers/hid/hid-uclogic-params.c, it found
> 6 warnings for hid_dbg() wrapper functions below:
>
> drivers/hid/hid-uclogic-params.c:48: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
> * Dump tablet interface pen parameters with hid_dbg(), indented with one tab.
> drivers/hid/hid-uclogic-params.c:48: warning: missing initial short description on line:
> * Dump tablet interface pen parameters with hid_dbg(), indented with one tab.
> drivers/hid/hid-uclogic-params.c:48: info: Scanning doc for function Dump
> drivers/hid/hid-uclogic-params.c:80: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
> * Dump tablet interface frame parameters with hid_dbg(), indented with two
> drivers/hid/hid-uclogic-params.c:80: warning: missing initial short description on line:
> * Dump tablet interface frame parameters with hid_dbg(), indented with two
> drivers/hid/hid-uclogic-params.c:80: info: Scanning doc for function Dump
> drivers/hid/hid-uclogic-params.c:105: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
> * Dump tablet interface parameters with hid_dbg().
> drivers/hid/hid-uclogic-params.c:105: warning: missing initial short description on line:
> * Dump tablet interface parameters with hid_dbg().
>
> One of them is reported by kernel test robot.
>
> Fix these warnings by properly format kernel-doc comment for these
> functions.
>
> Link: https://lore.kernel.org/linux-doc/202205272033.XFYlYj8k-lkp@xxxxxxxxx/
> Fixes: a228809fa6f39c ("HID: uclogic: Move param printing to a function")
> Reported-by: kernel test robot <lkp@xxxxxxxxx>
> Cc: Nikolai Kondrashov <spbnick@xxxxxxxxx>
> Cc: Jiri Kosina <jikos@xxxxxxxxxx>
> Cc: Benjamin Tissoires <benjamin.tissoires@xxxxxxxxxx>
> Cc: "José Expósito" <jose.exposito89@xxxxxxxxx>
> Cc: llvm@xxxxxxxxxxxxxxx
> Cc: stable@xxxxxxxxxxxxxxx # v5.18
> Cc: linux-input@xxxxxxxxxxxxxxx
> Cc: linux-kernel@xxxxxxxxxxxxxxx
> Signed-off-by: Bagas Sanjaya <bagasdotme@xxxxxxxxx>
> ---
> Changes since v1 [1]:
> - Approach the warning by fixing kernel-doc comments formatting
> (suggested by Jonathan Corbet)
>
> [1]: https://lore.kernel.org/linux-doc/20220528091403.160169-1-bagasdotme@xxxxxxxxx/

Tested-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Acked-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>

One note (nit) below:

> drivers/hid/hid-uclogic-params.c | 24 ++++++++++++++----------
> 1 file changed, 14 insertions(+), 10 deletions(-)
>
> diff --git a/drivers/hid/hid-uclogic-params.c b/drivers/hid/hid-uclogic-params.c
> index db838f16282d64..647bbd3e000e2f 100644
> --- a/drivers/hid/hid-uclogic-params.c
> +++ b/drivers/hid/hid-uclogic-params.c
> @@ -23,11 +23,11 @@
> /**
> * uclogic_params_pen_inrange_to_str() - Convert a pen in-range reporting type
> * to a string.
> - *
> * @inrange: The in-range reporting type to convert.
> *
> - * Returns:
> - * The string representing the type, or NULL if the type is unknown.
> + * Return:
> + * * The string representing the type, or
> + * * NULL if the type is unknown.

%NULL
would be better here, but not required.

> */
> static const char *uclogic_params_pen_inrange_to_str(
> enum uclogic_params_pen_inrange inrange)


Thanks.
--
~Randy