Commit 30817354 authored by Vivien Didelot's avatar Vivien Didelot Committed by David S. Miller

net: dsa: setup a tree when adding a switch to it

Now that the tree setup is centralized, we can simplify the code a bit
more by setting up or tearing down the tree directly when adding or
removing a switch to/from it.
Signed-off-by: default avatarVivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 34c09a89
......@@ -489,6 +489,8 @@ static void dsa_tree_teardown(struct dsa_switch_tree *dst)
static void dsa_tree_remove_switch(struct dsa_switch_tree *dst,
unsigned int index)
{
dsa_tree_teardown(dst);
dst->ds[index] = NULL;
dsa_tree_put(dst);
}
......@@ -497,6 +499,7 @@ static int dsa_tree_add_switch(struct dsa_switch_tree *dst,
struct dsa_switch *ds)
{
unsigned int index = ds->index;
int err;
if (dst->ds[index])
return -EBUSY;
......@@ -504,7 +507,11 @@ static int dsa_tree_add_switch(struct dsa_switch_tree *dst,
dsa_tree_get(dst);
dst->ds[index] = ds;
return 0;
err = dsa_tree_setup(dst);
if (err)
dsa_tree_remove_switch(dst, index);
return err;
}
static int dsa_port_parse_user(struct dsa_port *dp, const char *name)
......@@ -704,12 +711,17 @@ static int dsa_switch_parse(struct dsa_switch *ds, struct dsa_chip_data *cd)
return dsa_switch_parse_ports(ds, cd);
}
static int dsa_switch_add(struct dsa_switch *ds)
{
struct dsa_switch_tree *dst = ds->dst;
return dsa_tree_add_switch(dst, ds);
}
static int _dsa_register_switch(struct dsa_switch *ds)
{
struct dsa_chip_data *pdata = ds->dev->platform_data;
struct device_node *np = ds->dev->of_node;
struct dsa_switch_tree *dst;
unsigned int index;
int err;
if (np)
......@@ -722,20 +734,7 @@ static int _dsa_register_switch(struct dsa_switch *ds)
if (err)
return err;
index = ds->index;
dst = ds->dst;
err = dsa_tree_add_switch(dst, ds);
if (err)
return err;
err = dsa_tree_setup(dst);
if (err) {
dsa_tree_teardown(dst);
dsa_tree_remove_switch(dst, index);
}
return err;
return dsa_switch_add(ds);
}
struct dsa_switch *dsa_switch_alloc(struct device *dev, size_t n)
......@@ -777,8 +776,6 @@ static void _dsa_unregister_switch(struct dsa_switch *ds)
struct dsa_switch_tree *dst = ds->dst;
unsigned int index = ds->index;
dsa_tree_teardown(dst);
dsa_tree_remove_switch(dst, index);
}
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment