netdev - RE: [net-next 07/16] net/mlx5: DR, Add support for dumping steering info

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Date:   Sun, 2 Jan 2022 10:18:10 +0000
From:   Yevgeny Kliteynik <kliteyn@...dia.com>
To:     Jakub Kicinski <kuba@...nel.org>, Jonathan Corbet <corbet@....net>
CC:     Saeed Mahameed <saeed@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        Muhammad Sammar <muhammads@...dia.com>,
        Leon Romanovsky <leonro@...dia.com>,
        Saeed Mahameed <saeedm@...dia.com>,
        "linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>
Subject: RE: [net-next  07/16] net/mlx5: DR, Add support for dumping steering
 info


> From: Jakub Kicinski <kuba@...nel.org>
> Sent: Friday, December 31, 2021 04:10
>
> On Fri, 31 Dec 2021 01:49:54 +0000 Yevgeny Kliteynik wrote:
> > Actually, this was written based on debugfs functions documentation, 
> > where it states that "if an error occurs, NULL will be returned"
> >
> > https://www.kernel.org/doc/htmldocs/filesystems/API-debugfs-create-dir.html
> >
> > Looking at the code, I see that it's no longer the case.
> 
> Oh, I see. That looks like some old, out of date version of the docs.
> The text was already correct in 5.15, it seems:
> 
> https://elixir.bootlin.com/linux/v5.15/source/fs/debugfs/inode.c#L549
> 
> Also this render of the docs is correct:
> 
> https://www.kernel.org/doc/html/latest/filesystems/api-summary.html#c.debugfs_create_dir
 
The thing is, www.kernel.org/doc/htmldocs/ is the first and the only
doc link that I see when googling some debugfs functions.
Bing shows this as the first link, and the updated documentation
as the second link.

www.kernel.org/doc/htmldocs/index.html shows that this was generated
for kernel 4.12.0. So yes, it is very dated, but for some reason search
engines rank it highest. It's possible that debugfs is not the only case
with this problem.

-- YK

> I don't really know who's responsible for the kernel.org docs...
> Let's CC Jon.
> 
> Jon, is the www.kernel.org/doc/htmldocs/ copy intentionally what it is?
> Anyone we should talk to?