linux-kernel - Re: [PATCH 02/12] docs: tegra194-hte.rst: don't include gpiolib.c twice

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Date:   Wed, 6 Jul 2022 13:48:58 -0700
From:   Dipen Patel <dipenp@...dia.com>
To:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        Linux Doc Mailing List <linux-doc@...r.kernel.org>
Cc:     Jonathan Corbet <corbet@....net>,
        Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Thierry Reding <thierry.reding@...il.com>,
        linux-kernel@...r.kernel.org, linux-tegra@...r.kernel.org
Subject: Re: [PATCH 02/12] docs: tegra194-hte.rst: don't include gpiolib.c
 twice

On 7/2/22 4:07 AM, Mauro Carvalho Chehab wrote:
> All extern functions of drivers/gpio/gpiolib.c are already
> inside the Kernel documentation, as driver-api/gpio/index.rst
> already includes it.
>
> Placing a kernel-doc here will only cause mess, as the same symbol
> will be placed on two parts of the document, causing breakages
> in cross-references.
>
> So, instead, add a cross-reference there.
>
> This solves those Sphinx 3.1+ warnings:
>     .../Documentation/driver-api/hte/tegra194-hte:28: ./drivers/gpio/gpiolib.c:2464: WARNING: Duplicate C declaration, also defined at driver-api/gpio/index:2464.
>     .../Documentation/driver-api/hte/tegra194-hte:28: ./drivers/gpio/gpiolib.c:2493: WARNING: Duplicate C declaration, also defined at driver-api/gpio/index:2493.
>     .../Documentation/driver-api/hte/tegra194-hte.rst:2464: WARNING: Duplicate C declaration, also defined at driver-api/gpio/index:2464.
>     .../Documentation/driver-api/hte/tegra194-hte.rst:2464: WARNING: Duplicate C declaration, also defined at driver-api/gpio/index:2464.
>     .../Documentation/driver-api/hte/tegra194-hte.rst:2464: WARNING: Duplicate C declaration, also defined at driver-api/gpio/index:2464.
>     .../Documentation/driver-api/hte/tegra194-hte.rst:2493: WARNING: Duplicate C declaration, also defined at driver-api/gpio/index:2493.
>     .../Documentation/driver-api/hte/tegra194-hte.rst:2493: WARNING: Duplicate C declaration, also defined at driver-api/gpio/index:2493.
>     .../Documentation/driver-api/hte/tegra194-hte.rst:2493: WARNING: Duplicate C declaration, also defined at driver-api/gpio/index:2493.
>
> Signed-off-by: Mauro Carvalho Chehab <mchehab@...nel.org>
> ---
>
> To avoid mailbombing on a large number of people, only mailing lists were C/C on the cover.
> See [PATCH 00/12] at: https://lore.kernel.org/all/cover.1656759988.git.mchehab@kernel.org/
>
>  Documentation/driver-api/hte/tegra194-hte.rst | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/Documentation/driver-api/hte/tegra194-hte.rst b/Documentation/driver-api/hte/tegra194-hte.rst
> index d29b7fe86f31..f2d617265546 100644
> --- a/Documentation/driver-api/hte/tegra194-hte.rst
> +++ b/Documentation/driver-api/hte/tegra194-hte.rst
> @@ -25,8 +25,7 @@ and userspace consumers. The kernel space consumers can directly talk to HTE
>  subsystem while userspace consumers timestamp requests go through GPIOLIB CDEV
>  framework to HTE subsystem.
>  
> -.. kernel-doc:: drivers/gpio/gpiolib.c
> -   :functions: gpiod_enable_hw_timestamp_ns gpiod_disable_hw_timestamp_ns
> +See gpiod_enable_hw_timestamp_ns() and gpiod_disable_hw_timestamp_ns().
>  
>  For userspace consumers, GPIO_V2_LINE_FLAG_EVENT_CLOCK_HTE flag must be
>  specified during IOCTL calls. Refer to ``tools/gpio/gpio-event-mon.c``, which

Acked-by: Dipen Patel <dipenp@...dia.com>