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authorVivien Didelot <vivien.didelot@savoirfairelinux.com>2017-10-27 15:55:13 -0400
committerDavid S. Miller <davem@davemloft.net>2017-11-01 11:47:02 +0900
commit5b32fe070c2ddf31adc42c26dab8af346b652538 (patch)
treea7d74b24003397edc058bd2f80571a9b82eb2480 /net/dsa
parent638f5b90d46016372a8e3e0a434f199cc5e12b8c (diff)
net: dsa: get ports within parsing code
There is no point into hiding the -EINVAL error code in ERR_PTR from a dsa_get_ports function, simply get the "ports" node directly from within the dsa_parse_ports_dn function. This also has the effect to make the pdata and device tree handling code symmetrical inside _dsa_register_switch. At the same time, rename dsa_parse_ports_dn to dsa_parse_ports_of because _of is a more common suffix for device tree parsing functions. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/dsa')
-rw-r--r--net/dsa/dsa2.c33
1 files changed, 10 insertions, 23 deletions
diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c
index 4d1ccf87c59c..9d57f8dee9a1 100644
--- a/net/dsa/dsa2.c
+++ b/net/dsa/dsa2.c
@@ -590,11 +590,17 @@ static int dsa_dst_parse(struct dsa_switch_tree *dst)
return 0;
}
-static int dsa_parse_ports_dn(struct device_node *ports, struct dsa_switch *ds)
+static int dsa_parse_ports_of(struct device_node *dn, struct dsa_switch *ds)
{
- struct device_node *port;
- int err;
+ struct device_node *ports, *port;
u32 reg;
+ int err;
+
+ ports = of_get_child_by_name(dn, "ports");
+ if (!ports) {
+ dev_err(ds->dev, "no ports child node found\n");
+ return -EINVAL;
+ }
for_each_available_child_of_node(ports, port) {
err = of_property_read_u32(port, "reg", &reg);
@@ -665,26 +671,11 @@ static int dsa_parse_member(struct dsa_chip_data *pd, u32 *tree, u32 *index)
return 0;
}
-static struct device_node *dsa_get_ports(struct dsa_switch *ds,
- struct device_node *np)
-{
- struct device_node *ports;
-
- ports = of_get_child_by_name(np, "ports");
- if (!ports) {
- dev_err(ds->dev, "no ports child node found\n");
- return ERR_PTR(-EINVAL);
- }
-
- return ports;
-}
-
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;
- struct device_node *ports;
u32 tree, index;
int i, err;
@@ -693,11 +684,7 @@ static int _dsa_register_switch(struct dsa_switch *ds)
if (err)
return err;
- ports = dsa_get_ports(ds, np);
- if (IS_ERR(ports))
- return PTR_ERR(ports);
-
- err = dsa_parse_ports_dn(ports, ds);
+ err = dsa_parse_ports_of(np, ds);
if (err)
return err;
} else {