netdev - Re: [PATCH net-next 1/6] net: stmmac: add platform library

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Message-ID: <ZQCbB3qZlTvIM7rf@shell.armlinux.org.uk>
Date: Tue, 12 Sep 2023 18:08:23 +0100
From: "Russell King (Oracle)" <linux@...linux.org.uk>
To: Serge Semin <fancer.lancer@...il.com>
Cc: Jose Abreu <Jose.Abreu@...opsys.com>,
	Alexandre Torgue <alexandre.torgue@...s.st.com>,
	Alexei Starovoitov <ast@...nel.org>,
	"bpf@...r.kernel.org" <bpf@...r.kernel.org>,
	Daniel Borkmann <daniel@...earbox.net>,
	"David S. Miller" <davem@...emloft.net>,
	Emil Renner Berthing <kernel@...il.dk>,
	Eric Dumazet <edumazet@...gle.com>,
	Fabio Estevam <festevam@...il.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Jesper Dangaard Brouer <hawk@...nel.org>,
	John Fastabend <john.fastabend@...il.com>,
	"linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org>,
	"linux-stm32@...md-mailman.stormreply.com" <linux-stm32@...md-mailman.stormreply.com>,
	Maxime Coquelin <mcoquelin.stm32@...il.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	NXP Linux Team <linux-imx@....com>, Paolo Abeni <pabeni@...hat.com>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Samin Guo <samin.guo@...rfivetech.com>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Shawn Guo <shawnguo@...nel.org>
Subject: Re: [PATCH net-next 1/6] net: stmmac: add platform library

On Tue, Sep 12, 2023 at 12:32:40PM +0300, Serge Semin wrote:
> On Tue, Sep 12, 2023 at 07:59:49AM +0000, Jose Abreu wrote:
> > From: Russell King (Oracle) <rmk+kernel@...linux.org.uk>
> > Date: Mon, Sep 11, 2023 at 16:28:40
> > 
> > > Add a platform library of helper functions for common traits in the
> > > platform drivers. Currently, this is setting the tx clock.
> > > 
> > > Signed-off-by: Russell King (Oracle) <rmk+kernel@...linux.org.uk>
> > > ---
> 
> > >  drivers/net/ethernet/stmicro/stmmac/Makefile  |  2 +-
> > >  .../ethernet/stmicro/stmmac/stmmac_plat_lib.c | 29 +++++++++++++++++++
> > >  .../ethernet/stmicro/stmmac/stmmac_plat_lib.h |  8 +++++
> > 
> > Wouldn't it be better to just call it "stmmac_lib{.c,.h}" in case we need to add
> > more helpers on the future that are not only for platform-based drivers?
> 
> What is the difference between stmmac_platform.{c,h} and
> stmmac_plat_lib.{c,h} files? It isn't clear really. In perspective it
> may cause confusions like mixed definitions in both of these files.
> 
> Why not to use the stmmac_platform.{c,h} instead of adding one more
> file?

Is stmmac_platform.{c,h} used by all the drivers that are making use of
this? I'm not entirely sure.

If it is, then yes, it can go in stmmac_platform.[ch]. If not, then I
don't think we'd want the bloat of forcing all of stmmac_platform.[ch]
onto drivers that only want to use this one function.

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