linux-kernel - Re: [PATCH net-next v2] docs: ctucanfd: Use 'kernel-figure' directive instead of 'figure'

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Message-ID: <38d102ab-d0b6-3467-4dce-4a9d4aa9e39d@gmail.com>
Date:   Mon, 16 May 2022 20:24:49 +0900
From:   Akira Yokosawa <akiyks@...il.com>
To:     Marc Kleine-Budde <mkl@...gutronix.de>,
        Pavel Pisa <pisa@....felk.cvut.cz>, netdev@...r.kernel.org,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
Cc:     Martin Jerabek <martin.jerabek01@...il.com>,
        Ondrej Ille <ondrej.ille@...il.com>, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next v2] docs: ctucanfd: Use 'kernel-figure' directive
 instead of 'figure'

On Wed, 11 May 2022 08:45:43 +0900, Akira Yokosawa wrote:
> Two issues were observed in the ReST doc added by commit c3a0addefbde
> ("docs: ctucanfd: CTU CAN FD open-source IP core documentation.")
> with Sphinx versions 2.4.4 and 4.5.0.
> 
> The plain "figure" directive broke "make pdfdocs" due to a missing
> PDF figure.  For conversion of SVG -> PDF to work, the "kernel-figure"
> directive, which is an extension for kernel documentation, should
> be used instead.
> 
> The directive of "code:: raw" causes a warning from both
> "make htmldocs" and "make pdfdocs", which reads:
> 
>     [...]/can/ctu/ctucanfd-driver.rst:75: WARNING: Pygments lexer name
>     'raw' is not known
> 
> A plain literal-block marker should suffice where no syntax
> highlighting is intended.
> 
> Fix the issues by using suitable directive and marker.
> 
> Signed-off-by: Akira Yokosawa <akiyks@...il.com>
> Fixes: c3a0addefbde ("docs: ctucanfd: CTU CAN FD open-source IP core documentation.")
> Acked-by: Pavel Pisa <pisa@....felk.cvut.cz>
> Cc: Martin Jerabek <martin.jerabek01@...il.com>
> Cc: Ondrej Ille <ondrej.ille@...il.com>
> Cc: Marc Kleine-Budde <mkl@...gutronix.de>
> ---
> Changes in v1 -> v2
>  - no change in diff
>  - added explicit Sphinx versions the issues were observed
>  - picked Pavel's Acked-by
> 
Gentle ping to netdev maintainers.

I believe this one should go upstream together with the
offending commit.

If there is something I can do better, please let me know.

        Thanks, Akira

> --
>  .../networking/device_drivers/can/ctu/ctucanfd-driver.rst     | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/Documentation/networking/device_drivers/can/ctu/ctucanfd-driver.rst b/Documentation/networking/device_drivers/can/ctu/ctucanfd-driver.rst
> index 2fde5551e756..40c92ea272af 100644
> --- a/Documentation/networking/device_drivers/can/ctu/ctucanfd-driver.rst
> +++ b/Documentation/networking/device_drivers/can/ctu/ctucanfd-driver.rst
> @@ -72,7 +72,7 @@ it is reachable (on which bus it resides) and its configuration –
>  registers address, interrupts and so on. An example of such a device
>  tree is given in .
>  
> -.. code:: raw
> +::
>  
>             / {
>                 /* ... */
> @@ -451,7 +451,7 @@ the FIFO is maintained, together with priority rotation, is depicted in
>  
>  |
>  
> -.. figure:: fsm_txt_buffer_user.svg
> +.. kernel-figure:: fsm_txt_buffer_user.svg
>  
>     TX Buffer states with possible transitions
>