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From:   Pavel Pisa <pisa@cmp.felk.cvut.cz>
To:     Akira Yokosawa <akiyks@gmail.com>
Subject: Re: [PATCH net-next] docs: ctucanfd: Use 'kernel-figure' directive instead of 'figure'
Date:   Tue, 10 May 2022 18:25:15 +0200
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Cc:     "Marc Kleine-Budde" <mkl@pengutronix.de>,
        Martin Jerabek <martin.jerabek01@gmail.com>,
        Ondrej Ille <ondrej.ille@gmail.com>,
        "David S. Miller" <davem@davemloft.net>,
        Jakub Kicinski <kuba@kernel.org>, netdev@vger.kernel.org,
        linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org
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Hello Akira,

On Tuesday 10 of May 2022 11:34:37 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.").

Thanks for the fix

> The plain "figure" directive broke "make pdfdocs" due to a missing=20
> PDF figure.  For conversion of SVG -> PDF to work, the "kernel-figure"
> directive, which is an extension for kernel documentations, should
> be used instead.

I have not noticed that there is kernel-figure
option. We have setup own Sphinx 1.4.9 based build for driver
documentation out of the tree compilation, I am not sure if that
would work with this option but if not we keep this version
modified. There are required modification for sources location anyway...

https://canbus.pages.fel.cvut.cz/ctucanfd_ip_core/doc/linux_driver/build/ct=
ucanfd-driver.html

> 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

Strange I have not seen any warning when building htmldocs
in my actual linux kernel tree. I have cleaned docs to be warnings
free, but it is possible that I have another tools versions.

Anyway thanks for cleanup.

> 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@gmail.com>
> Fixes: c3a0addefbde ("docs: ctucanfd: CTU CAN FD open-source IP core
> documentation.") Cc: Pavel Pisa <pisa@cmp.felk.cvut.cz>
> Cc: Martin Jerabek <martin.jerabek01@gmail.com>
> Cc: Ondrej Ille <ondrej.ille@gmail.com>
> Cc: Marc Kleine-Budde <mkl@pengutronix.de>

Acked-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>

> ---
>  .../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 ind=
ex
> 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 =E2=80=93 registers address, interrupts and so on. An examp=
le 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