linux-kernel - RE: [PATCH] net/ethernet/realtek: Add Realtek automotive PCIe driver

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Message-ID: <dd9ff9e7d0524335ababccc93651cc76@realtek.com>
Date:   Wed, 9 Aug 2023 06:49:29 +0000
From:   Justin Lai <justinlai0215@...ltek.com>
To:     Andrew Lunn <andrew@...n.ch>, Jiri Pirko <jiri@...nulli.us>
CC:     "kuba@...nel.org" <kuba@...nel.org>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "edumazet@...gle.com" <edumazet@...gle.com>,
        "pabeni@...hat.com" <pabeni@...hat.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: RE: [PATCH] net/ethernet/realtek: Add Realtek automotive PCIe driver

> On Thu, Aug 03, 2023 at 10:57:29AM +0200, Jiri Pirko wrote:
> > Thu, Aug 03, 2023 at 10:25:13AM CEST, justinlai0215@...ltek.com wrote:
> > >This patch is to add the ethernet device driver for the PCIe
> > >interface of Realtek Automotive Ethernet Switch, applicable to RTL9054,
> RTL9068, RTL9072, RTL9075, RTL9068, RTL9071.
> > >
> > >Signed-off-by: justinlai0215 <justinlai0215@...ltek.com>
> >
> > [...]
> >
> >
> > >+
> > >+static long rtase_swc_ioctl(struct file *p_file, unsigned int cmd,
> > >+unsigned long arg)
> >
> > There are *MANY* thing wrong in this patch spotted just during 5
> > minutes skimming over the code, but this definitelly tops all of them.
> > I didn't see so obvious kernel bypass attempt for a long time. Ugh,
> > you can't be serious :/
> >
> > I suggest to you take couple of rounds of consulting the patch with
> > some skilled upstream developer internaly before you make another
> > submission in order not not to waste time of reviewers.
> 
> I have to agree with Jiri here. This 'vendor crap' driver has no chance of being
> merged as is. You need to reach out to some experienced mainline driver
> developers to help you rewrite it to mainline quality.
> 
>     Andrew

Thank you for your reply, I will refer to your suggestions to modify my code.