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dsa: Change dsa_uses_{dsa, trailer}_tags() into inline functions

Browse source 
eth_type_trans() will use these functions if DSA is enabled, which
blocks building DSA as a module.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ben Hutchings 2011-11-25 14:32:52 +00:00 • committed by David S. Miller
parent 6dec4ac4ee
commit cf50dcc24f
4 changed files with 52 additions and 59 deletions
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53
include/net/dsa.h
View file

@ -11,6 +11,9 @@
#ifndef __LINUX_NET_DSA_H
#define __LINUX_NET_DSA_H
#include <linux/timer.h>
#include <linux/workqueue.h>
#define DSA_MAX_SWITCHES 4
#define DSA_MAX_PORTS 12
@ -54,8 +57,54 @@ struct dsa_platform_data {
struct dsa_chip_data *chip;
};
extern bool dsa_uses_dsa_tags(void *dsa_ptr);
extern bool dsa_uses_trailer_tags(void *dsa_ptr);
struct dsa_switch_tree {
/*
* Configuration data for the platform device that owns
* this dsa switch tree instance.
*/
struct dsa_platform_data *pd;
/*
* Reference to network device to use, and which tagging
* protocol to use.
*/
struct net_device *master_netdev;
__be16 tag_protocol;
/*
* The switch and port to which the CPU is attached.
*/
s8 cpu_switch;
s8 cpu_port;
/*
* Link state polling.
*/
int link_poll_needed;
struct work_struct link_poll_work;
struct timer_list link_poll_timer;
/*
* Data for the individual switch chips.
*/
struct dsa_switch *ds[DSA_MAX_SWITCHES];
};
/*
* The original DSA tag format and some other tag formats have no
* ethertype, which means that we need to add a little hack to the
* networking receive path to make sure that received frames get
* the right ->protocol assigned to them when one of those tag
* formats is in use.
*/
static inline bool dsa_uses_dsa_tags(struct dsa_switch_tree *dst)
{
return !!(dst->tag_protocol == htons(ETH_P_DSA));
}
static inline bool dsa_uses_trailer_tags(struct dsa_switch_tree *dst)
{
return !!(dst->tag_protocol == htons(ETH_P_TRAILER));
}
#endif