[PATCH net-next v2 5/7] net: dsa: remove tree functions related to switches

From: Vivien Didelot
Date: Wed Oct 30 2019 - 22:10:03 EST


The DSA fabric setup code has been simplified a lot so get rid of
the dsa_tree_remove_switch, dsa_tree_add_switch and dsa_switch_add
helpers, and keep the code simple with only the dsa_switch_probe and
dsa_switch_remove functions.

Signed-off-by: Vivien Didelot <vivien.didelot@xxxxxxxxx>
---
net/dsa/dsa2.c | 43 ++++++++++---------------------------------
1 file changed, 10 insertions(+), 33 deletions(-)

diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c
index 92e71b12b729..371f15042dad 100644
--- a/net/dsa/dsa2.c
+++ b/net/dsa/dsa2.c
@@ -573,29 +573,6 @@ static void dsa_tree_teardown(struct dsa_switch_tree *dst)
dst->setup = false;
}

-static void dsa_tree_remove_switch(struct dsa_switch_tree *dst,
- unsigned int index)
-{
- dsa_tree_teardown(dst);
-
- dsa_tree_put(dst);
-}
-
-static int dsa_tree_add_switch(struct dsa_switch_tree *dst,
- struct dsa_switch *ds)
-{
- int err;
-
- dsa_tree_get(dst);
-
- err = dsa_tree_setup(dst);
- if (err) {
- dsa_tree_put(dst);
- }
-
- return err;
-}
-
static struct dsa_port *dsa_port_touch(struct dsa_switch *ds, int index)
{
struct dsa_switch_tree *dst = ds->dst;
@@ -846,15 +823,9 @@ 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_switch_probe(struct dsa_switch *ds)
{
+ struct dsa_switch_tree *dst;
struct dsa_chip_data *pdata;
struct device_node *np;
int err;
@@ -878,7 +849,13 @@ static int dsa_switch_probe(struct dsa_switch *ds)
if (err)
return err;

- return dsa_switch_add(ds);
+ dst = ds->dst;
+ dsa_tree_get(dst);
+ err = dsa_tree_setup(dst);
+ if (err)
+ dsa_tree_put(dst);
+
+ return err;
}

int dsa_register_switch(struct dsa_switch *ds)
@@ -897,7 +874,6 @@ EXPORT_SYMBOL_GPL(dsa_register_switch);
static void dsa_switch_remove(struct dsa_switch *ds)
{
struct dsa_switch_tree *dst = ds->dst;
- unsigned int index = ds->index;
struct dsa_port *dp, *next;

list_for_each_entry_safe(dp, next, &dst->ports, list) {
@@ -905,7 +881,8 @@ static void dsa_switch_remove(struct dsa_switch *ds)
kfree(dp);
}

- dsa_tree_remove_switch(dst, index);
+ dsa_tree_teardown(dst);
+ dsa_tree_put(dst);
}

void dsa_unregister_switch(struct dsa_switch *ds)
--
2.23.0