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[PATCH net-next] nfp: add MAY_USE_DEVLINK dependency

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When devlink is configured as a loadable module, a built-in nfp driver
causes a link error:

drivers/net/built-in.o: In function `nfp_devlink_port_register':
(.text+0xb8b05): undefined reference to `devlink_port_type_eth_set'
drivers/net/built-in.o: In function `nfp_devlink_port_register':
(.text+0xb8b16): undefined reference to `devlink_port_split_set'

This adds a special Kconfig dependency on CONFIG_MAY_USE_DEVLINK
to avoid that combination and force nfp to be a module when NET_DEVLINK=m.

Fixes: 1851f93fd2ee ("nfp: add devlink support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/net/ethernet/netronome/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/netronome/Kconfig b/drivers/net/ethernet/netronome/Kconfig
index 967d7ca8c28c..0d5a7b9203a4 100644
--- a/drivers/net/ethernet/netronome/Kconfig
+++ b/drivers/net/ethernet/netronome/Kconfig
@@ -19,6 +19,7 @@ config NFP
 	tristate "Netronome(R) NFP4000/NFP6000 NIC driver"
 	depends on PCI && PCI_MSI
 	depends on VXLAN || VXLAN=n
+	depends on MAY_USE_DEVLINK
 	---help---
 	  This driver supports the Netronome(R) NFP4000/NFP6000 based
 	  cards working as a advanced Ethernet NIC.  It works with both
-- 
2.9.0

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[PATCH net-next] nfp: add MAY_USE_DEVLINK dependency Arnd Bergmann <arnd@arndb.de> - 2017-05-31 10:30 +0200
  Re: [PATCH net-next] nfp: add MAY_USE_DEVLINK dependency Jakub Kicinski <kubakici@wp.pl> - 2017-05-31 11:00 +0200

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