netdev - Re: [PATCH V6 00/20] net: ks8851: Unify KS8851 SPI and MLL drivers

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Message-Id: <20200517.123014.104345884367246585.davem@davemloft.net>
Date:   Sun, 17 May 2020 12:30:14 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     andrew@...n.ch
Cc:     lukas@...ner.de, marex@...x.de, netdev@...r.kernel.org,
        ynezz@...e.cz, yuehaibing@...wei.com
Subject: Re: [PATCH V6 00/20] net: ks8851: Unify KS8851 SPI and MLL drivers

From: Andrew Lunn <andrew@...n.ch>
Date: Sun, 17 May 2020 21:16:35 +0200

>> Nevertheless I was going to repeat the performance measurements on a
>> recent kernel but haven't gotten around to that yet because the
>> measurements need to be performed with CONFIG_PREEMPT_RT_FULL to
>> be reliable (a vanilla kernel is too jittery), so I have to create
>> a new branch with RT patches on the test machine, which is fairly
>> involved and time consuming.
> 
> I assume you will then mainline the changes, so you don't need to do
> it again? That is the problem with doing development work on a dead
> kernel.

I think the limitation is outside of his control as not all of the RT
patches are in mainline yet.