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From: Simon Horman <simon.horman@corigine.com>
To: "Russell King (Oracle)" <linux@armlinux.org.uk>
Cc: Arnd Bergmann <arnd@kernel.org>,
	Giuseppe Cavallaro <peppe.cavallaro@st.com>,
	Alexandre Torgue <alexandre.torgue@foss.st.com>,
	Jose Abreu <joabreu@synopsys.com>,
	"David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	Maxime Coquelin <mcoquelin.stm32@gmail.com>,
	Maxime Chevallier <maxime.chevallier@bootlin.com>,
	Arnd Bergmann <arnd@arndb.de>,
	Christian Marangi <ansuelsmth@gmail.com>,
	Jon Hunter <jonathanh@nvidia.com>,
	Bhadram Varka <vbhadram@nvidia.com>,
	Samin Guo <samin.guo@starfivetech.com>,
	netdev@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/2] stmmac: fix pcs_lynx link failure
Date: Wed, 7 Jun 2023 17:52:19 +0200	[thread overview]
Message-ID: <ZICns6xA6geSGobk@corigine.com> (raw)
In-Reply-To: <ZICQMHTowGQTzbxm@shell.armlinux.org.uk>

On Wed, Jun 07, 2023 at 03:12:00PM +0100, Russell King (Oracle) wrote:
> On Wed, Jun 07, 2023 at 03:56:32PM +0200, Arnd Bergmann wrote:
> > From: Arnd Bergmann <arnd@arndb.de>
> > 
> > The mdio code in stmmac now directly links into both the lynx_pcs and
> > the xpcs device drivers, but the lynx_pcs dependency is only enforced
> > for the altera variant of stmmac, which is the one that actually uses it.
> > 
> > Building stmmac for a non-altera platform therefore causes a link
> > failure:
> > 
> > arm-linux-gnueabi-ld: drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.o: in function `stmmac_mdio_unregister':
> > stmmac_mdio.c:(.text+0x1418): undefined reference to `lynx_pcs_destroy'
> > 
> > I've tried to come up with a patch that moves this dependency back into
> > the dwmac-socfpga.c file, but there was no easy and obvious way to
> > do this. It also seems that this would not be a proper solution, but
> > instead there should be a real abstraction for pcs drivers that lets
> > device drivers handle this transparently.
> 
> There is already a patch set on netdev fixing this properly.

Yes, let's focus on the solution proposed here:
https://lore.kernel.org/netdev/20230607135941.407054-1-maxime.chevallier@bootlin.com/T/#t

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      reply	other threads:[~2023-06-07 15:53 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-06-07 13:56 [PATCH 1/2] stmmac: fix pcs_lynx link failure Arnd Bergmann
2023-06-07 14:12 ` Russell King (Oracle)
2023-06-07 15:52   ` Simon Horman [this message]

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