Thread (3 messages) flat view 3 messages, 3 authors, 2023-06-07

Re: [PATCH 1/2] stmmac: fix pcs_lynx link failure

From: Simon Horman <hidden>
Date: 2023-06-07 15:52:36
Also in: lkml, netdev

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:
quoted
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 (local)

-- 
pw-bot: reject


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