netdev - Re: FIXED_PHY is broken...

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Message-Id: <20141216.151550.805808430085367492.davem@davemloft.net>
Date:	Tue, 16 Dec 2014 15:15:50 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	netdev@...r.kernel.org
Cc:	f.fainelli@...il.com
Subject: Re: FIXED_PHY is broken...

From: David Miller <davem@...emloft.net>
Date: Tue, 16 Dec 2014 14:30:27 -0500 (EST)

> From: David Miller <davem@...emloft.net>
> Date: Tue, 16 Dec 2014 11:25:34 -0500 (EST)
> 
>> I get this now when I run oldconfig:
>> 
>> warning: (NET_DSA_BCM_SF2 && BCMGENET && SYSTEMPORT) selects FIXED_PHY which has unmet direct dependencies (NETDEVICES && PHYLIB=y)
> 
> Here is how I'm going to fix this.
> 
> FIXED_PHY needs to be allowed to be modular, and built even if PHYLIB is
> modular too.
> 
> ====================
> [PATCH] net: Allow FIXED_PHY to be modular.

Ok, it takes a little more work, the problem is that there is already
a module named fixed.ko in the regulator layer, so we have to rename
this to something else.

====================
[PATCH] net: Allow FIXED_PHY to be modular.

Otherwise we get things like:

warning: (NET_DSA_BCM_SF2 && BCMGENET && SYSTEMPORT) selects FIXED_PHY which has unmet direct dependencies (NETDEVICES && PHYLIB=y)

In order to make this work we have to rename fixed.c to fixed_phy.c
because the regulator drivers already have a module named "fixed.o".

Signed-off-by: David S. Miller <davem@...emloft.net>
---
 drivers/net/phy/Kconfig                  | 4 ++--
 drivers/net/phy/Makefile                 | 2 +-
 drivers/net/phy/{fixed.c => fixed_phy.c} | 0
 include/linux/phy_fixed.h                | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)
 rename drivers/net/phy/{fixed.c => fixed_phy.c} (100%)

diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
index b4b0f80..a3c251b 100644
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -119,8 +119,8 @@ config MICREL_PHY
 	  Supports the KSZ9021, VSC8201, KS8001 PHYs.
 
 config FIXED_PHY
-	bool "Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs"
-	depends on PHYLIB=y
+	tristate "Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs"
+	depends on PHYLIB
 	---help---
 	  Adds the platform "fixed" MDIO Bus to cover the boards that use
 	  PHYs that are not connected to the real MDIO bus.
diff --git a/drivers/net/phy/Makefile b/drivers/net/phy/Makefile
index eb3b18b..501ea76 100644
--- a/drivers/net/phy/Makefile
+++ b/drivers/net/phy/Makefile
@@ -17,7 +17,7 @@ obj-$(CONFIG_BCM87XX_PHY)	+= bcm87xx.o
 obj-$(CONFIG_ICPLUS_PHY)	+= icplus.o
 obj-$(CONFIG_REALTEK_PHY)	+= realtek.o
 obj-$(CONFIG_LSI_ET1011C_PHY)	+= et1011c.o
-obj-$(CONFIG_FIXED_PHY)		+= fixed.o
+obj-$(CONFIG_FIXED_PHY)		+= fixed_phy.o
 obj-$(CONFIG_MDIO_BITBANG)	+= mdio-bitbang.o
 obj-$(CONFIG_MDIO_GPIO)		+= mdio-gpio.o
 obj-$(CONFIG_NATIONAL_PHY)	+= national.o
diff --git a/drivers/net/phy/fixed.c b/drivers/net/phy/fixed_phy.c
similarity index 100%
rename from drivers/net/phy/fixed.c
rename to drivers/net/phy/fixed_phy.c
diff --git a/include/linux/phy_fixed.h b/include/linux/phy_fixed.h
index f2ca1b4..7e75bfe 100644
--- a/include/linux/phy_fixed.h
+++ b/include/linux/phy_fixed.h
@@ -11,7 +11,7 @@ struct fixed_phy_status {
 
 struct device_node;
 
-#ifdef CONFIG_FIXED_PHY
+#if IS_ENABLED(CONFIG_FIXED_PHY)
 extern int fixed_phy_add(unsigned int irq, int phy_id,
 			 struct fixed_phy_status *status);
 extern struct phy_device *fixed_phy_register(unsigned int irq,
-- 
1.7.11.7

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