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| author |   Vivien Didelot <vivien.didelot@gmail.com> | 2019-10-21 16:51:18 -0400 |
|---|---|---|
| committer |   Jakub Kicinski <jakub.kicinski@netronome.com> | 2019-10-22 12:37:06 -0700 |
| commit | 7b9a2f4bac68e1dcc77baebd8c1e32d43710bafa (patch) | |
| tree | b130910e4902b5f0fb5dbc0ef116775f016fc927 /net/dsa/dsa_priv.h | |
| parent | net: dsa: use ports list in dsa_to_port (diff) | |
| download | linux-dev-7b9a2f4bac68e1dcc77baebd8c1e32d43710bafa.tar.xz linux-dev-7b9a2f4bac68e1dcc77baebd8c1e32d43710bafa.zip | |
net: dsa: use ports list to find slave
Use the new ports list instead of iterating over switches and their
ports when looking for a slave device from a given master interface.
Signed-off-by: Vivien Didelot <vivien.didelot@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Diffstat (limited to 'net/dsa/dsa_priv.h')
| -rw-r--r-- | net/dsa/dsa_priv.h | 23 |
1 files changed, 6 insertions, 17 deletions
diff --git a/net/dsa/dsa_priv.h b/net/dsa/dsa_priv.h index 12f8c7ee4dd8..53e7577896b6 100644 --- a/net/dsa/dsa_priv.h +++ b/net/dsa/dsa_priv.h @@ -104,25 +104,14 @@ static inline struct net_device *dsa_master_find_slave(struct net_device *dev, { struct dsa_port *cpu_dp = dev->dsa_ptr; struct dsa_switch_tree *dst = cpu_dp->dst; - struct dsa_switch *ds; - struct dsa_port *slave_port; + struct dsa_port *dp; - if (device < 0 || device >= DSA_MAX_SWITCHES) - return NULL; + list_for_each_entry(dp, &dst->ports, list) + if (dp->ds->index == device && dp->index == port && + dp->type == DSA_PORT_TYPE_USER) + return dp->slave; - ds = dst->ds[device]; - if (!ds) - return NULL; - - if (port < 0 || port >= ds->num_ports) - return NULL; - - slave_port = &ds->ports[port]; - - if (unlikely(slave_port->type != DSA_PORT_TYPE_USER)) - return NULL; - - return slave_port->slave; + return NULL; } /* port.c */ |