2017-03-31 09:48:36

by Tobias Regnery

Subject: [PATCH net-next] net: dsa: fix build error with devlink build as module

After commit 96567d5dacf4 ("net: dsa: dsa2: Add basic support of devlink")
I see the following link error with CONFIG_NET_DSA=y and CONFIG_NET_DEVLINK=m:

net/built-in.o: In function 'dsa_register_switch':
(.text+0xe226b): undefined reference to `devlink_alloc'
net/built-in.o: In function 'dsa_register_switch':
(.text+0xe2284): undefined reference to `devlink_register'
net/built-in.o: In function 'dsa_register_switch':
(.text+0xe243e): undefined reference to `devlink_port_register'
net/built-in.o: In function 'dsa_register_switch':
(.text+0xe24e1): undefined reference to `devlink_port_register'
net/built-in.o: In function 'dsa_register_switch':
(.text+0xe24fa): undefined reference to `devlink_port_type_eth_set'
net/built-in.o: In function 'dsa_dst_unapply.part.8':
dsa2.c:(.text.unlikely+0x345): undefined reference to 'devlink_port_unregister'
dsa2.c:(.text.unlikely+0x36c): undefined reference to 'devlink_port_unregister'
dsa2.c:(.text.unlikely+0x38e): undefined reference to 'devlink_port_unregister'
dsa2.c:(.text.unlikely+0x3f2): undefined reference to 'devlink_unregister'
dsa2.c:(.text.unlikely+0x3fb): undefined reference to 'devlink_free'

Fix this by adding a dependency on MAY_USE_DEVLINK so that CONFIG_NET_DSA
get switched to be build as module when CONFIG_NET_DEVLINK=m.

Fixes: 96567d5dacf4 ("net: dsa: dsa2: Add basic support of devlink")
Signed-off-by: Tobias Regnery <[email protected]>
---
net/dsa/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/dsa/Kconfig b/net/dsa/Kconfig
index 9649238eef40..da4d64f432db 100644
--- a/net/dsa/Kconfig
+++ b/net/dsa/Kconfig
@@ -6,7 +6,7 @@ config HAVE_NET_DSA

config NET_DSA
tristate "Distributed Switch Architecture"
- depends on HAVE_NET_DSA
+ depends on HAVE_NET_DSA && MAY_USE_DEVLINK
select NET_SWITCHDEV
select PHYLIB
---help---
--
2.11.0

2017-03-31 13:35:04

by Andrew Lunn

Subject: Re: [PATCH net-next] net: dsa: fix build error with devlink build as module

On Fri, Mar 31, 2017 at 11:44:52AM +0200, Tobias Regnery wrote:
> After commit 96567d5dacf4 ("net: dsa: dsa2: Add basic support of devlink")
> I see the following link error with CONFIG_NET_DSA=y and CONFIG_NET_DEVLINK=m:
>
> net/built-in.o: In function 'dsa_register_switch':
> (.text+0xe226b): undefined reference to `devlink_alloc'
> net/built-in.o: In function 'dsa_register_switch':
> (.text+0xe2284): undefined reference to `devlink_register'
> net/built-in.o: In function 'dsa_register_switch':
> (.text+0xe243e): undefined reference to `devlink_port_register'
> net/built-in.o: In function 'dsa_register_switch':
> (.text+0xe24e1): undefined reference to `devlink_port_register'
> net/built-in.o: In function 'dsa_register_switch':
> (.text+0xe24fa): undefined reference to `devlink_port_type_eth_set'
> net/built-in.o: In function 'dsa_dst_unapply.part.8':
> dsa2.c:(.text.unlikely+0x345): undefined reference to 'devlink_port_unregister'
> dsa2.c:(.text.unlikely+0x36c): undefined reference to 'devlink_port_unregister'
> dsa2.c:(.text.unlikely+0x38e): undefined reference to 'devlink_port_unregister'
> dsa2.c:(.text.unlikely+0x3f2): undefined reference to 'devlink_unregister'
> dsa2.c:(.text.unlikely+0x3fb): undefined reference to 'devlink_free'
>
> Fix this by adding a dependency on MAY_USE_DEVLINK so that CONFIG_NET_DSA
> get switched to be build as module when CONFIG_NET_DEVLINK=m.
>
> Fixes: 96567d5dacf4 ("net: dsa: dsa2: Add basic support of devlink")
> Signed-off-by: Tobias Regnery <[email protected]>

Hi Tobias

0-day just found the same issue as well.

Reviewed-by: Andrew Lunn <[email protected]>

Thanks
Andrew

2017-04-02 03:11:04

by David Miller

Subject: Re: [PATCH net-next] net: dsa: fix build error with devlink build as module

From: Tobias Regnery <[email protected]>
Date: Fri, 31 Mar 2017 11:44:52 +0200

> After commit 96567d5dacf4 ("net: dsa: dsa2: Add basic support of devlink")
> I see the following link error with CONFIG_NET_DSA=y and CONFIG_NET_DEVLINK=m:
>
> net/built-in.o: In function 'dsa_register_switch':
> (.text+0xe226b): undefined reference to `devlink_alloc'
> net/built-in.o: In function 'dsa_register_switch':
> (.text+0xe2284): undefined reference to `devlink_register'
> net/built-in.o: In function 'dsa_register_switch':
> (.text+0xe243e): undefined reference to `devlink_port_register'
> net/built-in.o: In function 'dsa_register_switch':
> (.text+0xe24e1): undefined reference to `devlink_port_register'
> net/built-in.o: In function 'dsa_register_switch':
> (.text+0xe24fa): undefined reference to `devlink_port_type_eth_set'
> net/built-in.o: In function 'dsa_dst_unapply.part.8':
> dsa2.c:(.text.unlikely+0x345): undefined reference to 'devlink_port_unregister'
> dsa2.c:(.text.unlikely+0x36c): undefined reference to 'devlink_port_unregister'
> dsa2.c:(.text.unlikely+0x38e): undefined reference to 'devlink_port_unregister'
> dsa2.c:(.text.unlikely+0x3f2): undefined reference to 'devlink_unregister'
> dsa2.c:(.text.unlikely+0x3fb): undefined reference to 'devlink_free'
>
> Fix this by adding a dependency on MAY_USE_DEVLINK so that CONFIG_NET_DSA
> get switched to be build as module when CONFIG_NET_DEVLINK=m.
>
> Fixes: 96567d5dacf4 ("net: dsa: dsa2: Add basic support of devlink")
> Signed-off-by: Tobias Regnery <[email protected]>

Applied.