linux-kernel - [PATCH] net: phy: mediatek: fix compile-test dependencies

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Message-Id: <20230616093009.3511692-1-arnd@kernel.org>
Date:   Fri, 16 Jun 2023 11:29:54 +0200
From:   Arnd Bergmann <arnd@...nel.org>
To:     Andrew Lunn <andrew@...n.ch>,
        Heiner Kallweit <hkallweit1@...il.com>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Russell King <linux@...linux.org.uk>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Ramón Nordin Rodriguez 
        <ramon.nordin.rodriguez@...roamp.se>,
        Parthiban Veerasooran <Parthiban.Veerasooran@...rochip.com>,
        Frank Sae <Frank.Sae@...or-comm.com>,
        Michael Walle <michael@...le.cc>,
        Daniel Golle <daniel@...rotopia.org>,
        Piergiorgio Beruto <piergiorgio.beruto@...il.com>,
        Vladimir Oltean <vladimir.oltean@....com>,
        Jonathan Lemon <jonathan.lemon@...il.com>,
        Randy Dunlap <rdunlap@...radead.org>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org
Subject: [PATCH] net: phy: mediatek: fix compile-test dependencies

From: Arnd Bergmann <arnd@...db.de>

The new phy driver attempts to select a driver from another subsystem,
but that fails when the NVMEM subsystem is disabled:

WARNING: unmet direct dependencies detected for NVMEM_MTK_EFUSE
  Depends on [n]: NVMEM [=n] && (ARCH_MEDIATEK [=n] || COMPILE_TEST [=y]) && HAS_IOMEM [=y]
  Selected by [y]:
  - MEDIATEK_GE_SOC_PHY [=y] && NETDEVICES [=y] && PHYLIB [=y] && (ARM64 && ARCH_MEDIATEK [=n] || COMPILE_TEST [=y])

I could not see an actual compile time dependency, so presumably this
is only needed for for working correctly but not technically a dependency
on that particular nvmem driver implementation, so it would likely
be safe to remove the select for compile testing.

To keep the spirit of the original 'select', just replace this with a
'depends on' that ensures that the driver will work but does not get in
the way of build testing.

Fixes: 98c485eaf509b ("net: phy: add driver for MediaTek SoC built-in GE PHYs")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/net/phy/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
index a40269c175974..78e6981650d94 100644
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -239,7 +239,7 @@ config MEDIATEK_GE_PHY
 config MEDIATEK_GE_SOC_PHY
 	tristate "MediaTek SoC Ethernet PHYs"
 	depends on (ARM64 && ARCH_MEDIATEK) || COMPILE_TEST
-	select NVMEM_MTK_EFUSE
+	depends on NVMEM_MTK_EFUSE
 	help
 	  Supports MediaTek SoC built-in Gigabit Ethernet PHYs.
 
-- 
2.39.2