diff options
| -rw-r--r-- | include/net/dsa.h | 5 | ||||
| -rw-r--r-- | net/dsa/dsa2.c | 48 |
2 files changed, 47 insertions, 6 deletions
diff --git a/include/net/dsa.h b/include/net/dsa.h index 2e4fe2f8962b..6ff6dfcdc61d 100644 --- a/include/net/dsa.h +++ b/include/net/dsa.h @@ -125,6 +125,9 @@ struct dsa_switch_tree { */ struct dsa_port *cpu_dp; + /* List of switch ports */ + struct list_head ports; + /* * Data for the individual switch chips. */ @@ -195,6 +198,8 @@ struct dsa_port { struct work_struct xmit_work; struct sk_buff_head xmit_queue; + struct list_head list; + /* * Give the switch driver somewhere to hang its per-port private data * structures (accessible from the tagger). diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c index 1716535167ee..ba27ff8b4445 100644 --- a/net/dsa/dsa2.c +++ b/net/dsa/dsa2.c @@ -45,6 +45,8 @@ static struct dsa_switch_tree *dsa_tree_alloc(int index) dst->index = index; + INIT_LIST_HEAD(&dst->ports); + INIT_LIST_HEAD(&dst->list); list_add_tail(&dst->list, &dsa_tree_list); @@ -616,6 +618,22 @@ static int dsa_tree_add_switch(struct dsa_switch_tree *dst, return err; } +static struct dsa_port *dsa_port_touch(struct dsa_switch *ds, int index) +{ + struct dsa_switch_tree *dst = ds->dst; + struct dsa_port *dp; + + dp = &ds->ports[index]; + + dp->ds = ds; + dp->index = index; + + INIT_LIST_HEAD(&dp->list); + list_add_tail(&dp->list, &dst->ports); + + return dp; +} + static int dsa_port_parse_user(struct dsa_port *dp, const char *name) { if (!name) @@ -742,6 +760,20 @@ static int dsa_switch_parse_member_of(struct dsa_switch *ds, return 0; } +static int dsa_switch_touch_ports(struct dsa_switch *ds) +{ + struct dsa_port *dp; + int port; + + for (port = 0; port < ds->num_ports; port++) { + dp = dsa_port_touch(ds, port); + if (!dp) + return -ENOMEM; + } + + return 0; +} + static int dsa_switch_parse_of(struct dsa_switch *ds, struct device_node *dn) { int err; @@ -750,6 +782,10 @@ static int dsa_switch_parse_of(struct dsa_switch *ds, struct device_node *dn) if (err) return err; + err = dsa_switch_touch_ports(ds); + if (err) + return err; + return dsa_switch_parse_ports_of(ds, dn); } @@ -807,6 +843,8 @@ static int dsa_switch_parse_ports(struct dsa_switch *ds, static int dsa_switch_parse(struct dsa_switch *ds, struct dsa_chip_data *cd) { + int err; + ds->cd = cd; /* We don't support interconnected switches nor multiple trees via @@ -817,6 +855,10 @@ static int dsa_switch_parse(struct dsa_switch *ds, struct dsa_chip_data *cd) if (!ds->dst) return -ENOMEM; + err = dsa_switch_touch_ports(ds); + if (err) + return err; + return dsa_switch_parse_ports(ds, cd); } @@ -849,7 +891,6 @@ static int dsa_switch_probe(struct dsa_switch *ds) struct dsa_switch *dsa_switch_alloc(struct device *dev, size_t n) { struct dsa_switch *ds; - int i; ds = devm_kzalloc(dev, struct_size(ds, ports, n), GFP_KERNEL); if (!ds) @@ -858,11 +899,6 @@ struct dsa_switch *dsa_switch_alloc(struct device *dev, size_t n) ds->dev = dev; ds->num_ports = n; - for (i = 0; i < ds->num_ports; ++i) { - ds->ports[i].index = i; - ds->ports[i].ds = ds; - } - return ds; } EXPORT_SYMBOL_GPL(dsa_switch_alloc); |