netdev - Re: [RFC PATCH 0/4] net: dsa: link aggregation support

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Message-ID: <20201028010349.GA930647@lunn.ch>
Date:   Wed, 28 Oct 2020 02:03:49 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Tobias Waldekranz <tobias@...dekranz.com>
Cc:     vivien.didelot@...il.com, f.fainelli@...il.com, olteanv@...il.com,
        netdev@...r.kernel.org
Subject: Re: [RFC PATCH 0/4] net: dsa: link aggregation support

On Wed, Oct 28, 2020 at 01:45:11AM +0100, Tobias Waldekranz wrote:
> On Tue, Oct 27, 2020 at 23:36, Andrew Lunn <andrew@...n.ch> wrote:
> > If you are dynamically allocating dsa_lag structures, at run time, you
> > need to think about this. But the number of LAGs is limited by the
> > number of ports. So i would consider just allocating the worst case
> > number at probe, and KISS for runtime.
> 
> Oh OK, yeah that just makes stuff easier so that's absolutely fine. I
> got the sense that the overall movement within DSA was in the opposite
> direction. E.g. didn't the dst use to have an array of ds pointers?
> Whereas now you iterate through dst->ports to find them?

Yes, but they are all allocated at probe time. It saved a bit of heap
for adding some code.

   Andrew