Commit dedd702a authored by Maxime Chevallier's avatar Maxime Chevallier Committed by David S. Miller
Browse files

net: sfp: Add helper to return the SFP bus name 



Knowing the bus name is helpful when we want to expose the link topology
to userspace, add a helper to return the SFP bus name.

Signed-off-by: default avatarMaxime Chevallier <maxime.chevallier@bootlin.com>
Reviewed-by: default avatarAndrew Lunn <andrew@lunn.ch>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 034fcc21

drivers/net/phy/sfp-bus.c

+11 −0
Original line number Diff line number Diff line
@@ -859,3 +859,14 @@ void sfp_unregister_socket(struct sfp_bus *bus) 
	sfp_bus_put(bus);

}

EXPORT_SYMBOL_GPL(sfp_unregister_socket);



const char *sfp_get_name(struct sfp_bus *bus)

{

	ASSERT_RTNL();



	if (bus->sfp_dev)

		return dev_name(bus->sfp_dev);



	return NULL;

}

EXPORT_SYMBOL_GPL(sfp_get_name);

include/linux/sfp.h

+6 −0
Original line number Diff line number Diff line
@@ -570,6 +570,7 @@ struct sfp_bus *sfp_bus_find_fwnode(const struct fwnode_handle *fwnode); 
int sfp_bus_add_upstream(struct sfp_bus *bus, void *upstream,

			 const struct sfp_upstream_ops *ops);

void sfp_bus_del_upstream(struct sfp_bus *bus);

const char *sfp_get_name(struct sfp_bus *bus);

#else

static inline int sfp_parse_port(struct sfp_bus *bus,

				 const struct sfp_eeprom_id *id,
@@ -648,6 +649,11 @@ static inline int sfp_bus_add_upstream(struct sfp_bus *bus, void *upstream, 
static inline void sfp_bus_del_upstream(struct sfp_bus *bus)

{

}



static inline const char *sfp_get_name(struct sfp_bus *bus)

{

	return NULL;

}

#endif



#endif