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net: dsa: Make most functions take a dsa_port argument

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In preparation for allowing platform data, and therefore no valid
device_node pointer, make most DSA functions takes a pointer to a
dsa_port structure whenever possible. While at it, introduce a
dsa_port_is_valid() helper function which checks whether port->dn is
NULL or not at the moment.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Florian Fainelli
2017-01-26 10:45:52 -08:00
committed by David S. Miller
parent 55ed0ce089
commit 293784a8f8
3 changed files with 44 additions and 36 deletions
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4
net/dsa/dsa_priv.h
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@@ -50,8 +50,8 @@ struct dsa_slave_priv {
/* dsa.c */
int dsa_cpu_dsa_setup(struct dsa_switch *ds, struct device *dev,
struct device_node *port_dn, int port);
void dsa_cpu_dsa_destroy(struct device_node *port_dn);
struct dsa_port *dport, int port);
void dsa_cpu_dsa_destroy(struct dsa_port *dport);
const struct dsa_device_ops *dsa_resolve_tag_protocol(int tag_protocol);
int dsa_cpu_port_ethtool_setup(struct dsa_switch *ds);
void dsa_cpu_port_ethtool_restore(struct dsa_switch *ds);