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net: devlink: turn devlink into a built-in 

Being able to build devlink as a module causes growing pains.
First all drivers had to add a meta dependency to make sure
they are not built in when devlink is built as a module.  Now
we are struggling to invoke ethtool compat code reliably.

Make devlink code built-in, users can still not build it at
all but the dynamically loadable module option is removed.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jakub Kicinski 2019-02-25 19:34:02 -08:00 committed by David S. Miller
parent d8cf757fbd
commit f4b6bcc700
13 changed files with 8 additions and 39 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/infiniband/hw/bnxt_re/Kconfig
View File

@ -1,7 +1,6 @@
config INFINIBAND_BNXT_RE
tristate "Broadcom Netxtreme HCA support"
depends on ETHERNET && NETDEVICES && PCI && INET && DCB
depends on MAY_USE_DEVLINK
select NET_VENDOR_BROADCOM
select BNXT
---help---

1
drivers/infiniband/hw/mlx4/Kconfig
View File

@ -2,7 +2,6 @@ config MLX4_INFINIBAND
tristate "Mellanox ConnectX HCA support"
depends on NETDEVICES && ETHERNET && PCI && INET
depends on INFINIBAND_USER_ACCESS || !INFINIBAND_USER_ACCESS
depends on MAY_USE_DEVLINK
select NET_VENDOR_MELLANOX
select MLX4_CORE
---help---

1
drivers/net/Kconfig
View File

@ -505,7 +505,6 @@ source "drivers/net/hyperv/Kconfig"
config NETDEVSIM
tristate "Simulated networking device"
depends on DEBUG_FS
depends on MAY_USE_DEVLINK
help
This driver is a developer testing tool and software model that can
be used to test various control path networking APIs, especially

1
drivers/net/ethernet/broadcom/Kconfig
View File

@ -194,7 +194,6 @@ config SYSTEMPORT
config BNXT
tristate "Broadcom NetXtreme-C/E support"
depends on PCI
depends on MAY_USE_DEVLINK
select FW_LOADER
select LIBCRC32C
---help---

1
drivers/net/ethernet/cavium/Kconfig
View File

@ -64,7 +64,6 @@ config CAVIUM_PTP
config LIQUIDIO
tristate "Cavium LiquidIO support"
depends on 64BIT && PCI
depends on MAY_USE_DEVLINK
depends on PCI
imply PTP_1588_CLOCK
select FW_LOADER

1
drivers/net/ethernet/mellanox/mlx4/Kconfig
View File

@ -4,7 +4,6 @@
config MLX4_EN
tristate "Mellanox Technologies 1/10/40Gbit Ethernet support"
depends on MAY_USE_DEVLINK
depends on PCI && NETDEVICES && ETHERNET && INET
select MLX4_CORE
imply PTP_1588_CLOCK

1
drivers/net/ethernet/mellanox/mlx5/core/Kconfig
View File

@ -4,7 +4,6 @@
config MLX5_CORE
tristate "Mellanox 5th generation network adapters (ConnectX series) core driver"
depends on MAY_USE_DEVLINK
depends on PCI
imply PTP_1588_CLOCK
imply VXLAN

1
drivers/net/ethernet/mellanox/mlxsw/Kconfig
View File

@ -4,7 +4,6 @@
config MLXSW_CORE
tristate "Mellanox Technologies Switch ASICs support"
depends on MAY_USE_DEVLINK
---help---
This driver supports Mellanox Technologies Switch ASICs family.

1
drivers/net/ethernet/netronome/Kconfig
View File

@ -19,7 +19,6 @@ 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

10
include/net/devlink.h
View File

@ -707,6 +707,10 @@ devlink_health_reporter_priv(struct devlink_health_reporter *reporter);
int devlink_health_report(struct devlink_health_reporter *reporter,
const char *msg, void *priv_ctx);
void devlink_compat_running_version(struct net_device *dev,
char *buf, size_t len);
int devlink_compat_flash_update(struct net_device *dev, const char *file_name);
#else
static inline struct devlink *devlink_alloc(const struct devlink_ops *ops,
@ -1190,13 +1194,7 @@ devlink_health_report(struct devlink_health_reporter *reporter,
{
return 0;
}
#endif
#if IS_REACHABLE(CONFIG_NET_DEVLINK)
void devlink_compat_running_version(struct net_device *dev,
char *buf, size_t len);
int devlink_compat_flash_update(struct net_device *dev, const char *file_name);
#else
static inline void
devlink_compat_running_version(struct net_device *dev, char *buf, size_t len)
{

11
net/Kconfig
View File

@ -429,21 +429,12 @@ config NET_SOCK_MSG
with the help of BPF programs.
config NET_DEVLINK
tristate "Network physical/parent device Netlink interface"
bool "Network physical/parent device Netlink interface"
help
Network physical/parent device Netlink interface provides
infrastructure to support access to physical chip-wide config and
monitoring.
config MAY_USE_DEVLINK
tristate
default m if NET_DEVLINK=m
default y if NET_DEVLINK=y || NET_DEVLINK=n
help
Drivers using the devlink infrastructure should have a dependency
on MAY_USE_DEVLINK to ensure they do not cause link errors when
devlink is a loadable module and the driver using it is built-in.
config PAGE_POOL
bool

15
net/core/devlink.c
View File

@ -6482,20 +6482,9 @@ int devlink_compat_flash_update(struct net_device *dev, const char *file_name)
return -EOPNOTSUPP;
}
static int __init devlink_module_init(void)
static int __init devlink_init(void)
{
return genl_register_family(&devlink_nl_family);
}
static void __exit devlink_module_exit(void)
{
genl_unregister_family(&devlink_nl_family);
}
module_init(devlink_module_init);
module_exit(devlink_module_exit);
MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Jiri Pirko <jiri@mellanox.com>");
MODULE_DESCRIPTION("Network physical device Netlink interface");
MODULE_ALIAS_GENL_FAMILY(DEVLINK_GENL_NAME);
subsys_initcall(devlink_init);

2
net/dsa/Kconfig
View File

@ -6,7 +6,7 @@ config HAVE_NET_DSA
config NET_DSA
tristate "Distributed Switch Architecture"
depends on HAVE_NET_DSA && MAY_USE_DEVLINK
depends on HAVE_NET_DSA
depends on BRIDGE || BRIDGE=n
select NET_SWITCHDEV
select PHYLINK