From: Arnd Bergmann <arnd@kernel.org>
To: Andrew Lunn <andrew+netdev@lunn.ch>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Heiner Kallweit <hkallweit1@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] net: fec: make FIXED_PHY dependency unconditional
Date: Thu, 2 Apr 2026 16:10:40 +0200 [thread overview]
Message-ID: <20260402141048.2713445-1-arnd@kernel.org> (raw)
From: Arnd Bergmann <arnd@arndb.de>
When CONFIG_FIXED_PHY is in a loadable module, the fec driver cannot be
built-in any more:
x86_64-linux-ld: vmlinux.o: in function `fec_enet_mii_probe':
fec_main.c:(.text+0xc4f367): undefined reference to `fixed_phy_unregister'
x86_64-linux-ld: vmlinux.o: in function `fec_enet_close':
fec_main.c:(.text+0xc59591): undefined reference to `fixed_phy_unregister'
x86_64-linux-ld: vmlinux.o: in function `fec_enet_mii_probe.cold':
Select the fixed phy support on all targets to make this build
correctly, not just on coldfire.
Notat that Essentially the stub helpers in include/linux/phy_fixed.h
cannot be used correctly because of this build time dependency,
and we could just remove them to hit the build failure more often
when a driver uses them without the 'select FIXED_PHY'.
Fixes: dc86b621e1b4 ("net: fec: register a fixed phy using fixed_phy_register_100fd if needed")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
I sent the same fix for B44 earlier, see commit 3f0f591b44b0 ("net: b44:
always select CONFIG_FIXED_PHY"). I checked that there are no other
conditional users of FIXED_PHY this time.
---
drivers/net/ethernet/freescale/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/freescale/Kconfig b/drivers/net/ethernet/freescale/Kconfig
index e2a591cf9601..11edbb46a118 100644
--- a/drivers/net/ethernet/freescale/Kconfig
+++ b/drivers/net/ethernet/freescale/Kconfig
@@ -28,7 +28,7 @@ config FEC
depends on PTP_1588_CLOCK_OPTIONAL
select CRC32
select PHYLIB
- select FIXED_PHY if M5272
+ select FIXED_PHY
select PAGE_POOL
imply PAGE_POOL_STATS
imply NET_SELFTESTS
--
2.39.5
next reply other threads:[~2026-04-02 14:10 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-02 14:10 Arnd Bergmann [this message]
2026-04-03 16:02 ` [PATCH] net: fec: make FIXED_PHY dependency unconditional Simon Horman
2026-04-03 22:00 ` patchwork-bot+netdevbpf
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