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Date:	Mon, 2 Jun 2008 11:25:14 -0500
From:	Kumar Gala <galak@...nel.crashing.org>
To:	Jeff Garzik <jeff@...zik.org>
Cc:	netdev@...r.kernel.org, linuxppc-dev@...abs.org,
	Andy Fleming <afleming@...escale.com>
Subject: Re: [PATCH] phylib: Don't allow core of phylib to build as a module


On Jun 2, 2008, at 11:03 AM, Jeff Garzik wrote:

> Kumar Gala wrote:
>> The core portions of the phylib aren't capable of being used as
>> a module.  This isn't really any different than something like i2c
>> in that the bus driver and core need to be built into the kernel.
>> Signed-off-by: Kumar Gala <galak@...nel.crashing.org>
>> ---
>> Jeff, please consider this for 2.6.26 as w/o it we get build issues
>> if phylib is config'd as a module on ppc.
>> drivers/net/phy/Kconfig |    2 +-
>> 1 files changed, 1 insertions(+), 1 deletions(-)
>> diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
>> index 6eb2d31..ab04cc7 100644
>> --- a/drivers/net/phy/Kconfig
>> +++ b/drivers/net/phy/Kconfig
>> @@ -3,7 +3,7 @@
>> #
>> menuconfig PHYLIB
>> -	tristate "PHY Device support and infrastructure"
>> +	bool "PHY Device support and infrastructure"
>> 	depends on !S390
>> 	depends on NET_ETHERNET
>
> What are the issues?
>
> The core _should_ be able to be built as a module.

The core provides functions like phy_read/phy_write.  Andy has  
recently introduced board level workaround/fixups.  The problem is  
these workarounds tend to use phy_read/phy_write and the board/ 
platform code is not built as modules.

So we get errors like:

arch/powerpc/platforms/built-in.o: In function `mpc8568_mds_phy_fixups':
/home/galak/git/master/powerpc/arch/powerpc/platforms/85xx/ 
mpc85xx_mds.c:99: undefined reference to `phy_write'
/home/galak/git/master/powerpc/arch/powerpc/platforms/85xx/ 
mpc85xx_mds.c:104: undefined reference to `phy_read'
/home/galak/git/master/powerpc/arch/powerpc/platforms/85xx/ 
mpc85xx_mds.c:110: undefined reference to `phy_write'
/home/galak/git/master/powerpc/arch/powerpc/platforms/85xx/ 
mpc85xx_mds.c:115: undefined reference to `phy_write'
/home/galak/git/master/powerpc/arch/powerpc/platforms/85xx/ 
mpc85xx_mds.c:120: undefined reference to `phy_read'
/home/galak/git/master/powerpc/arch/powerpc/platforms/85xx/ 
mpc85xx_mds.c:125: undefined reference to `phy_read'
/home/galak/git/master/powerpc/arch/powerpc/platforms/85xx/ 
mpc85xx_mds.c:132: undefined reference to `phy_write'
/home/galak/git/master/powerpc/arch/powerpc/platforms/85xx/ 
mpc85xx_mds.c:138: undefined reference to `phy_read'
/home/galak/git/master/powerpc/arch/powerpc/platforms/85xx/ 
mpc85xx_mds.c:144: undefined reference to `phy_write'
arch/powerpc/platforms/built-in.o: In function  
`mpc8568_fixup_125_clock':
/home/galak/git/master/powerpc/arch/powerpc/platforms/85xx/ 
mpc85xx_mds.c:68: undefined reference to `phy_read'
/home/galak/git/master/powerpc/arch/powerpc/platforms/85xx/ 
mpc85xx_mds.c:73: undefined reference to `phy_write'
/home/galak/git/master/powerpc/arch/powerpc/platforms/85xx/ 
mpc85xx_mds.c:78: undefined reference to `phy_write'
/home/galak/git/master/powerpc/arch/powerpc/platforms/85xx/ 
mpc85xx_mds.c:83: undefined reference to `phy_read'
/home/galak/git/master/powerpc/arch/powerpc/platforms/85xx/ 
mpc85xx_mds.c:88: undefined reference to `phy_write'
arch/powerpc/platforms/built-in.o: In function `board_fixups':
/home/galak/git/master/powerpc/arch/powerpc/platforms/85xx/ 
mpc85xx_mds.c:246: undefined reference to `phy_register_fixup_for_id'
/home/galak/git/master/powerpc/arch/powerpc/platforms/85xx/ 
mpc85xx_mds.c:247: undefined reference to `phy_register_fixup_for_id'
/home/galak/git/master/powerpc/arch/powerpc/platforms/85xx/ 
mpc85xx_mds.c:251: undefined reference to `phy_register_fixup_for_id'
/home/galak/git/master/powerpc/arch/powerpc/platforms/85xx/ 
mpc85xx_mds.c:246: undefined reference to `phy_register_fixup_for_id'
/home/galak/git/master/powerpc/arch/powerpc/platforms/85xx/ 
mpc85xx_mds.c:247: undefined reference to `phy_register_fixup_for_id'
arch/powerpc/platforms/built-in.o:/home/galak/git/master/powerpc/arch/ 
powerpc/platforms/85xx/mpc85xx_mds.c:251: more undefined references to  
`phy_register_fixup_for_id' follow
make: *** [.tmp_vmlinux1] Error 1


- k
--
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