linux-kernel - Re: [PATCH RFC net-next 3/3] net: stmmac: Drop TBI/RTBI PCS flags

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Date: Tue, 28 May 2024 15:23:35 +0300
From: Serge Semin <fancer.lancer@...il.com>
To: "Russell King (Oracle)" <linux@...linux.org.uk>
Cc: Alexandre Torgue <alexandre.torgue@...s.st.com>, 
	Jose Abreu <joabreu@...opsys.com>, "David S. Miller" <davem@...emloft.net>, 
	Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, 
	Paolo Abeni <pabeni@...hat.com>, Maxime Coquelin <mcoquelin.stm32@...il.com>, 
	Alexei Starovoitov <ast@...nel.org>, Daniel Borkmann <daniel@...earbox.net>, 
	Jesper Dangaard Brouer <hawk@...nel.org>, John Fastabend <john.fastabend@...il.com>, bpf@...r.kernel.org, 
	netdev@...r.kernel.org, linux-stm32@...md-mailman.stormreply.com, 
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH RFC net-next 3/3] net: stmmac: Drop TBI/RTBI PCS flags

On Tue, May 28, 2024 at 11:23:05AM +0100, Russell King (Oracle) wrote:
> On Sat, May 25, 2024 at 12:02:59AM +0300, Serge Semin wrote:
> > First of all the flags are never set by any of the driver parts. If nobody
> > have them set then the respective statements will always have the same
> > result. Thus the statements can be simplified or even dropped with no risk
> > to break things.
> > 
> > Secondly shall any of the TBI or RTBI flag is set the MDIO-bus
> > registration will be bypassed. Why? It really seems weird. It's perfectly
> > fine to have a TBI/RTBI-capable PHY configured over the MDIO bus
> > interface.
> > 
> > Based on the notes above the TBI/RTBI PCS flags can be freely dropped thus
> > simplifying the driver code.
> > 
> > Signed-off-by: Serge Semin <fancer.lancer@...il.com>
> 
> I think this patch can come first in the series, along with another
> few patches that remove stuff. Any objection?

No objection.

-Serge(y)

> 
> Thanks.
> 
> -- 
> RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
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