[PATCH] powerpc: Fix fs_enet module build

If fs_enet is build as module, on PPC_CPM_NEW_BINDING platforms
mii-fec/mii-bitbang should be build as module, as well. On other
platforms, mii-fec/mii-bitbang must be included into the main module.
Otherwise some symbols remain undefined. Additionally, fs_enet uses
libphy, so add a select PHYLIB.

  Building modules, stage 2.
  MODPOST 5 modules
ERROR: "fs_scc_ops" [drivers/net/fs_enet/fs_enet.ko] undefined!
make[1]: *** [__modpost] Error 1
make: *** [modules] Error 2

Signed-off-by: Jochen Friedrich <jochen@scram.de>
---

This patch replaces powerpc-fs_enet-select-phylib-as-the-driver-needs-it.patch
from -mm.

 drivers/net/fs_enet/Kconfig  |   11 ++++++++++-
 drivers/net/fs_enet/Makefile |   15 ++++++++++++---
 2 files changed, 22 insertions(+), 4 deletions(-)

diff --git a/drivers/net/fs_enet/Kconfig b/drivers/net/fs_enet/Kconfig
index 2765e49..562ea68 100644
--- a/drivers/net/fs_enet/Kconfig
+++ b/drivers/net/fs_enet/Kconfig

@@ -2,6 +2,7 @@ config FS_ENET
        tristate "Freescale Ethernet Driver"
        depends on CPM1 || CPM2
        select MII
+       select PHYLIB
 
 config FS_ENET_HAS_SCC
 	bool "Chip has an SCC usable for ethernet"

@@ -11,11 +12,19 @@ config FS_ENET_HAS_SCC
 config FS_ENET_HAS_FCC
 	bool "Chip has an FCC usable for ethernet"
 	depends on FS_ENET && CPM2
-	select MDIO_BITBANG
 	default y
 
 config FS_ENET_HAS_FEC
 	bool "Chip has an FEC usable for ethernet"
 	depends on FS_ENET && CPM1
+	select FS_ENET_MDIO_FEC
 	default y
 
+config FS_ENET_MDIO_FEC
+	tristate "MDIO driver for FEC"
+	depends on FS_ENET && CPM1
+
+config FS_ENET_MDIO_FCC
+	tristate "MDIO driver for FCC"
+	depends on FS_ENET && CPM2
+	select MDIO_BITBANG

diff --git a/drivers/net/fs_enet/Makefile b/drivers/net/fs_enet/Makefile
index 02d4dc1..1ffbe07 100644
--- a/drivers/net/fs_enet/Makefile
+++ b/drivers/net/fs_enet/Makefile

@@ -4,7 +4,16 @@
 
 obj-$(CONFIG_FS_ENET) += fs_enet.o
 
-obj-$(CONFIG_8xx) += mac-fec.o mac-scc.o mii-fec.o
-obj-$(CONFIG_CPM2) += mac-fcc.o mii-bitbang.o
+fs_enet-$(CONFIG_FS_ENET_HAS_SCC) += mac-scc.o
+fs_enet-$(CONFIG_FS_ENET_HAS_FEC) += mac-fec.o
+fs_enet-$(CONFIG_FS_ENET_HAS_FCC) += mac-fcc.o
 
-fs_enet-objs := fs_enet-main.o
+ifeq ($(CONFIG_PPC_CPM_NEW_BINDING),y)
+obj-$(CONFIG_FS_ENET_MDIO_FEC) += mii-fec.o
+obj-$(CONFIG_FS_ENET_MDIO_FCC) += mii-bitbang.o
+else
+fs_enet-$(CONFIG_FS_ENET_MDIO_FEC) += mii-fec.o
+fs_enet-$(CONFIG_FS_ENET_MDIO_FCC) += mii-bitbang.o
+endif
+
+fs_enet-objs := fs_enet-main.o $(fs_enet-m)

-- 
1.5.3.5

From: Jochen Friedrich <jochen@scram.de>
Date: Tue, 13 Nov 2007 19:32:08 +0100

If fs_enet is build as module, on PPC_CPM_NEW_BINDING platforms
mii-fec/mii-bitbang should be build as module, as well. On other
platforms, mii-fec/mii-bitbang must be included into the main module.
Otherwise some symbols remain undefined. Additionally, fs_enet uses
libphy, so add a select PHYLIB.

  Building modules, stage 2.
  MODPOST 5 modules
ERROR: "fs_scc_ops" [drivers/net/fs_enet/fs_enet.ko] undefined!
make[1]: *** [__modpost] Error 1
make: *** [modules] Error 2

Signed-off-by: Jochen Friedrich <jochen@scram.de>

This is truly ugly and creates an unnecessarily hard to
maintain and complex driver.

Please find a way to fix this for real, so that the
PPC_CPM_NEW_BINDING ifdef is not necessary at all and
things get built modular or not naturally as we handle
things for other cases like this.

THanks.

Hi David,

This is truly ugly and creates an unnecessarily hard to
maintain and complex driver.

Please find a way to fix this for real, so that the
PPC_CPM_NEW_BINDING ifdef is not necessary at all and
things get built modular or not naturally as we handle
things for other cases like this.

I know it's ugly, however, module building is completely
broken right now and I just want to provide a quick and
ugly fix until both that ppc->powerpc transition and the
new binding transition are over. Noone wants to touch the
old stuff any more as it's a pita and it's already scheduled
for removal in a couple of months.

Thanks,
Jochen

From: Jochen Friedrich <jochen@scram.de>
Date: Wed, 14 Nov 2007 12:59:33 +0100

I know it's ugly, however, module building is completely
broken right now and I just want to provide a quick and
ugly fix until both that ppc->powerpc transition and the
new binding transition are over. Noone wants to touch the
old stuff any more as it's a pita and it's already scheduled
for removal in a couple of months.

Fair enough, I'll apply the patch.

Thanks for the explanation.