linux-kernel - Re: [PATCH net-next] drivers: net: cpsw: make cpsw_ale.c a module to allow re-use on Keystone

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Date:	Fri, 30 Jan 2015 00:47:33 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	Murali Karicheri <m-karicheri2@...com>
Cc:	w-kwok2@...com, davem@...emloft.net, mugunthanvnm@...com,
	tony@...mide.com, prabhakar.csengg@...il.com,
	grygorii.strashko@...com, lokeshvutla@...com, mpa@...gutronix.de,
	lsorense@...lub.uwaterloo.ca, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next] drivers: net: cpsw: make cpsw_ale.c a module to allow re-use on Keystone

On Thursday 29 January 2015 18:15:51 Murali Karicheri wrote:
> NetCP on Keystone has cpsw ale function similar to other TI SoCs
> and this driver is re-used. To allow both ti cpsw and keystone netcp
> to re-use the driver, convert the cpsw ale to a module and configure
> it through Kconfig option CONFIG_TI_CPSW_ALE. Currently it is statically
> linked to both TI CPSW and NetCP and this causes issues when the above
> drivers are built as dynamic modules. This patch addresses this issue
> 
> While at it, fix the Makefile and code to build both netcp_core and
> netcp_ethss as dynamic modules. This is needed to support arm allmodconfig.
> This also requires exporting of API calls provided by netcp_core so that
> both the above can be dynamic modules.
> 
> Signed-off-by: Murali Karicheri <m-karicheri2@...com>
> ---
>  drivers/net/ethernet/ti/Kconfig       |   19 +++++++++++++++++--
>  drivers/net/ethernet/ti/Makefile      |    8 +++++---
>  drivers/net/ethernet/ti/cpsw_ale.c    |   26 ++++++++++++++++++++++++--
>  drivers/net/ethernet/ti/netcp_core.c  |    8 ++++++++
>  drivers/net/ethernet/ti/netcp_ethss.c |    5 +++++
>  5 files changed, 59 insertions(+), 7 deletions(-)

I was hoping there would be a way without exporting all those symbols, but
I also couldn't come up with a better solution. I'm putting this into the
randconfig build test for now, but I'm guessing it's fine.

Unless you hear something else from me tomorrow after the tests are through:

Acked-by: Arnd Bergmann <arnd@...db.de>
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