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Message-ID: <20220408170423.35b379d9@kernel.org>
Date:   Fri, 8 Apr 2022 17:04:23 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Jakob Koschel <jakobkoschel@...il.com>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Paolo Abeni <pabeni@...hat.com>, Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        Lars Povlsen <lars.povlsen@...rochip.com>,
        Steen Hegelund <Steen.Hegelund@...rochip.com>,
        UNGLinuxDriver@...rochip.com, Ariel Elior <aelior@...vell.com>,
        Manish Chopra <manishc@...vell.com>,
        Edward Cree <ecree.xilinx@...il.com>,
        Martin Habets <habetsm.xilinx@...il.com>,
        Michael Ellerman <mpe@...erman.id.au>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Jiri Pirko <jiri@...nulli.us>,
        Casper Andersson <casper.casan@...il.com>,
        Bjarni Jonasson <bjarni.jonasson@...rochip.com>,
        Colin Ian King <colin.king@...el.com>,
        Michael Walle <michael@...le.cc>,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        Arnd Bergmann <arnd@...db.de>,
        Eric Dumazet <edumazet@...gle.com>,
        Di Zhu <zhudi21@...wei.com>, Xu Wang <vulab@...as.ac.cn>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linuxppc-dev@...ts.ozlabs.org, Mike Rapoport <rppt@...nel.org>,
        Brian Johannesmeyer <bjohannesmeyer@...il.com>,
        Cristiano Giuffrida <c.giuffrida@...nl>,
        "Bos, H.J." <h.j.bos@...nl>
Subject: Re: [PATCH net-next 02/15] net: dsa: sja1105: Remove usage of
 iterator for list_add() after loop

On Sat, 9 Apr 2022 01:58:29 +0200 Jakob Koschel wrote:
> > This turns a pretty slick piece of code into something ugly :(
> > I'd rather you open coded the iteration here than make it more 
> > complex to satisfy "safe coding guidelines".  
> 
> I'm not entirely sure I understand what you mean with 
> "open coded the iteration". But maybe the solution proposed by Vladimir [1]
> works for you?

Yup, that's what I meant!

> I'm planning to rewrite the cases in that way for the relevant ones.
>
> > Also the list_add() could be converted to list_add_tail().  
> 
> Good point, I wasn't sure if that's considered as something that should be
> done as a separate change. I'm happy to include it in v2.

Ack, separate patch would be better for that. I guess Vladimir may have
used .prev on purpose, since _tail() doesn't intuitively scream _after()
Anyway, not important.

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