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Commit cd753732 authored by stephen hemminger's avatar stephen hemminger Committed by David S. Miller
Browse files

bridge: add template for bridge port flags 



Provide macro to build sysfs data structures and functions
for accessing flag bits.  If flag bits change do netlink
notification.

Signed-off-by: default avatarStephen Hemminger <shemminger@vyatta.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 25c71c75

net/bridge/br_sysfs_if.c

+23 −15
Original line number Diff line number Diff line
@@ -34,6 +34,28 @@ const struct brport_attribute brport_attr_##_name = { \ 
	.store	= _store,					\

};



#define BRPORT_ATTR_FLAG(_name, _mask)				\

static ssize_t show_##_name(struct net_bridge_port *p, char *buf) \

{								\

	return sprintf(buf, "%d\n", !!(p->flags & _mask));	\

}								\

static int store_##_name(struct net_bridge_port *p, unsigned long v) \

{								\

	unsigned long flags = p->flags;				\

	if (v)							\

		flags |= _mask;					\

	else							\

		flags &= ~_mask;				\

	if (flags != p->flags) {				\

		p->flags = flags;				\

		br_ifinfo_notify(RTM_NEWLINK, p);		\

	}							\

	return 0;						\

}								\

static BRPORT_ATTR(_name, S_IRUGO | S_IWUSR,			\

		   show_##_name, store_##_name)





static ssize_t show_path_cost(struct net_bridge_port *p, char *buf)

{

	return sprintf(buf, "%d\n", p->path_cost);
@@ -133,21 +155,7 @@ static int store_flush(struct net_bridge_port *p, unsigned long v) 
}

static BRPORT_ATTR(flush, S_IWUSR, NULL, store_flush);



static ssize_t show_hairpin_mode(struct net_bridge_port *p, char *buf)

{

	int hairpin_mode = (p->flags & BR_HAIRPIN_MODE) ? 1 : 0;

	return sprintf(buf, "%d\n", hairpin_mode);

}

static int store_hairpin_mode(struct net_bridge_port *p, unsigned long v)

{

	if (v)

		p->flags |= BR_HAIRPIN_MODE;

	else

		p->flags &= ~BR_HAIRPIN_MODE;

	return 0;

}

static BRPORT_ATTR(hairpin_mode, S_IRUGO | S_IWUSR,

		   show_hairpin_mode, store_hairpin_mode);

BRPORT_ATTR_FLAG(hairpin_mode, BR_HAIRPIN_MODE);



#ifdef CONFIG_BRIDGE_IGMP_SNOOPING

static ssize_t show_multicast_router(struct net_bridge_port *p, char *buf)