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authorstephen hemminger <shemminger@vyatta.com>2012-11-13 07:53:06 +0000
committerDavid S. Miller <davem@davemloft.net>2012-11-14 20:20:44 -0500
commitcd7537326e617e71b5a84b205b755bc86bee8d06 (patch)
treef756caacc3f6c960af130227d93dd05d6a45693a /net/bridge/br_sysfs_if.c
parent25c71c75ac87508528db053b818944f3650dd7a6 (diff)
downloadlinux-cd7537326e617e71b5a84b205b755bc86bee8d06.tar.bz2
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: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge/br_sysfs_if.c')
-rw-r--r--net/bridge/br_sysfs_if.c38
1 files changed, 23 insertions, 15 deletions
diff --git a/net/bridge/br_sysfs_if.c b/net/bridge/br_sysfs_if.c
index 13b36bdc76a7..f26173d33d8d 100644
--- a/net/bridge/br_sysfs_if.c
+++ b/net/bridge/br_sysfs_if.c
@@ -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)