linux-kernel - Re: [PATCH v4 5/6] connector/cn_proc: Performance improvements

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Message-ID: <20230601094827.60bd8db1@kernel.org>
Date:   Thu, 1 Jun 2023 09:48:27 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Anjali Kulkarni <anjali.k.kulkarni@...cle.com>
Cc:     "davem@...emloft.net" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        "pabeni@...hat.com" <pabeni@...hat.com>,
        Evgeniy Polyakov <zbr@...emap.net>,
        Christian Brauner <brauner@...nel.org>,
        "johannes@...solutions.net" <johannes@...solutions.net>,
        "ecree.xilinx@...il.com" <ecree.xilinx@...il.com>,
        "leon@...nel.org" <leon@...nel.org>,
        "keescook@...omium.org" <keescook@...omium.org>,
        "socketcan@...tkopp.net" <socketcan@...tkopp.net>,
        "petrm@...dia.com" <petrm@...dia.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: [PATCH v4 5/6] connector/cn_proc: Performance improvements

On Thu, 1 Jun 2023 16:38:04 +0000 Anjali Kulkarni wrote:
> > The #define FILTER and ifdefs around it need to go, this much I can
> > tell you without understanding what it does :S We have the git history
> > we don't need to keep dead code around.  
> 
> The FILTER option is for backwards compatibility for those who may be
> using the proc connector today - so they do not need to immediately
> switch to using the new method - the example just shows the old
> method which does not break or need changes - do you still want me to
> remove the FILTER? 

Is it possible to recode the sample so the format can be decided based
on cmd line argument? To be honest samples are kinda dead, it'd be best
if the code was rewritten to act as a selftest.