linux-kernel - Re: [PATCH] media: videobuf2: add missing MODULE

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Message-ID: <CAAFQd5Bdh6Lsje-71_HDK9T141jMNeNh1v400ukUVn1L5WO-kA@mail.gmail.com>
Date: Thu, 13 Jun 2024 11:27:22 +0900
From: Tomasz Figa <tfiga@...omium.org>
To: Jeff Johnson <quic_jjohnson@...cinc.com>
Cc: Marek Szyprowski <m.szyprowski@...sung.com>, Mauro Carvalho Chehab <mchehab@...nel.org>, 
	linux-media@...r.kernel.org, linux-kernel@...r.kernel.org, 
	kernel-janitors@...r.kernel.org
Subject: Re: [PATCH] media: videobuf2: add missing MODULE_DESCRIPTION() macro

Hi Jeff,

On Wed, Jun 12, 2024 at 11:46 PM Jeff Johnson <quic_jjohnson@...cinc.com> wrote:
>
> With ARCH=x86, make allmodconfig && make W=1 C=1 reports:
> WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/media/common/videobuf2/videobuf2-dvb.o
>
> Add the missing invocation of the MODULE_DESCRIPTION() macro.
>
> Signed-off-by: Jeff Johnson <quic_jjohnson@...cinc.com>
> ---
> While doing these cleanups, in most cases I've taken the descriptions
> directly from code comments, Kconfig descriptions, or git logs, but in
> this case I didn't see a nice concise description so I invented this
> one. Please suggest a replacement if this isn't an appropriate
> description.
> ---
>  drivers/media/common/videobuf2/videobuf2-dvb.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/media/common/videobuf2/videobuf2-dvb.c b/drivers/media/common/videobuf2/videobuf2-dvb.c
> index 8c15bcd07eef..6f6650183184 100644
> --- a/drivers/media/common/videobuf2/videobuf2-dvb.c
> +++ b/drivers/media/common/videobuf2/videobuf2-dvb.c
> @@ -19,6 +19,7 @@
>  /* ------------------------------------------------------------------ */
>
>  MODULE_AUTHOR("Gerd Knorr <kraxel@...esex.org> [SuSE Labs]");
> +MODULE_DESCRIPTION("Simple DVB helper framework for videobuf2");

Thanks for the patch!

Looking at the header at the top of the file:

 * some helper function for simple DVB cards which simply DMA the
 * complete transport stream and let the computer sort everything else
 * (i.e. we are using the software demux, ...).  Also uses vb2
 * to manage DMA buffers.

I think I'd call it "Videobuf2 helpers library for simple DVB cards".
But maybe we could have some DVB expert comment on this. :)

Regardless of whether the description stays or changes, feel free to add

Acked-by: Tomasz Figa <tfiga@...omium.org>

Best regards,
Tomasz