From 6d4e5c570c2d66c806ecc6bd851fcf881fe8a38e Mon Sep 17 00:00:00 2001 From: Vivien Didelot Date: Fri, 27 Oct 2017 15:55:15 -0400 Subject: [PATCH] net: dsa: get port type at parse time Assign a port's type at parsed time instead of waiting for the tree to be completed. Because this is now done earlier, we can use the port's type in dsa_port_is_* helpers instead of digging again in topology description. Signed-off-by: Vivien Didelot Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller --- net/dsa/dsa2.c | 37 ++++++++++++++++++++++--------------- 1 file changed, 22 insertions(+), 15 deletions(-) diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c index a0ee91cd3814..895c38427ef0 100644 --- a/net/dsa/dsa2.c +++ b/net/dsa/dsa2.c @@ -87,23 +87,17 @@ static void dsa_dst_del_ds(struct dsa_switch_tree *dst, */ static bool dsa_port_is_valid(struct dsa_port *port) { - return !!(port->dn || port->name); + return port->type != DSA_PORT_TYPE_UNUSED; } static bool dsa_port_is_dsa(struct dsa_port *port) { - if (port->name && !strcmp(port->name, "dsa")) - return true; - else - return !!of_parse_phandle(port->dn, "link", 0); + return port->type == DSA_PORT_TYPE_DSA; } static bool dsa_port_is_cpu(struct dsa_port *port) { - if (port->name && !strcmp(port->name, "cpu")) - return true; - else - return !!of_parse_phandle(port->dn, "ethernet", 0); + return port->type == DSA_PORT_TYPE_CPU; } static bool dsa_ds_find_port_dn(struct dsa_switch *ds, @@ -183,8 +177,6 @@ static int dsa_ds_complete(struct dsa_switch_tree *dst, struct dsa_switch *ds) err = dsa_port_complete(dst, ds, port, index); if (err != 0) return err; - - port->type = DSA_PORT_TYPE_DSA; } return 0; @@ -500,8 +492,6 @@ static int dsa_cpu_parse(struct dsa_port *port, u32 index, dst->cpu_dp->master = ethernet_dev; } - port->type = DSA_PORT_TYPE_CPU; - tag_protocol = ds->ops->get_tag_protocol(ds); tag_ops = dsa_resolve_tag_protocol(tag_protocol); if (IS_ERR(tag_ops)) { @@ -534,8 +524,6 @@ static int dsa_ds_parse(struct dsa_switch_tree *dst, struct dsa_switch *ds) err = dsa_cpu_parse(port, index, dst, ds); if (err) return err; - } else { - port->type = DSA_PORT_TYPE_USER; } } @@ -592,6 +580,17 @@ static int dsa_dst_parse(struct dsa_switch_tree *dst) static int dsa_port_parse_of(struct dsa_port *dp, struct device_node *dn) { + struct device_node *ethernet = of_parse_phandle(dn, "ethernet", 0); + struct device_node *link = of_parse_phandle(dn, "link", 0); + + if (ethernet) { + dp->type = DSA_PORT_TYPE_CPU; + } else if (link) { + dp->type = DSA_PORT_TYPE_DSA; + } else { + dp->type = DSA_PORT_TYPE_USER; + } + dp->dn = dn; return 0; @@ -631,6 +630,14 @@ static int dsa_parse_ports_of(struct device_node *dn, struct dsa_switch *ds) static int dsa_port_parse(struct dsa_port *dp, const char *name, struct device *dev) { + if (!strcmp(name, "cpu")) { + dp->type = DSA_PORT_TYPE_CPU; + } else if (!strcmp(name, "dsa")) { + dp->type = DSA_PORT_TYPE_DSA; + } else { + dp->type = DSA_PORT_TYPE_USER; + } + dp->name = name; return 0; -- 2.30.2