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net: dsa: use dsa_tree_for_each_cpu_port in dsa_tree_{setup,teardown}_master 

More logic will be added to dsa_tree_setup_master() and
dsa_tree_teardown_master() in upcoming changes.

Reduce the indentation by one level in these functions by introducing
and using a dedicated iterator for CPU ports of a tree.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Vladimir Oltean 2022-08-19 20:48:18 +03:00 committed by Paolo Abeni
parent f41ec1fd1c
commit 5dc760d120
2 changed files with 25 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
include/net/dsa.h
View File

@ -559,6 +559,10 @@ static inline bool dsa_is_user_port(struct dsa_switch *ds, int p)
list_for_each_entry((_dp), &(_dst)->ports, list) \
if (dsa_port_is_user((_dp)))
#define dsa_tree_for_each_cpu_port(_dp, _dst) \
list_for_each_entry((_dp), &(_dst)->ports, list) \
if (dsa_port_is_cpu((_dp)))
#define dsa_switch_for_each_port(_dp, _ds) \
list_for_each_entry((_dp), &(_ds)->dst->ports, list) \
if ((_dp)->ds == (_ds))

46
net/dsa/dsa2.c
View File

@ -1060,26 +1060,24 @@ static int dsa_tree_setup_switches(struct dsa_switch_tree *dst)
static int dsa_tree_setup_master(struct dsa_switch_tree *dst)
{
struct dsa_port *dp;
struct dsa_port *cpu_dp;
int err = 0;
rtnl_lock();
list_for_each_entry(dp, &dst->ports, list) {
if (dsa_port_is_cpu(dp)) {
struct net_device *master = dp->master;
bool admin_up = (master->flags & IFF_UP) &&
!qdisc_tx_is_noop(master);
dsa_tree_for_each_cpu_port(cpu_dp, dst) {
struct net_device *master = cpu_dp->master;
bool admin_up = (master->flags & IFF_UP) &&
!qdisc_tx_is_noop(master);
err = dsa_master_setup(master, dp);
if (err)
break;
err = dsa_master_setup(master, cpu_dp);
if (err)
break;
/* Replay master state event */
dsa_tree_master_admin_state_change(dst, master, admin_up);
dsa_tree_master_oper_state_change(dst, master,
netif_oper_up(master));
}
/* Replay master state event */
dsa_tree_master_admin_state_change(dst, master, admin_up);
dsa_tree_master_oper_state_change(dst, master,
netif_oper_up(master));
}
rtnl_unlock();
@ -1089,22 +1087,20 @@ static int dsa_tree_setup_master(struct dsa_switch_tree *dst)
static void dsa_tree_teardown_master(struct dsa_switch_tree *dst)
{
struct dsa_port *dp;
struct dsa_port *cpu_dp;
rtnl_lock();
list_for_each_entry(dp, &dst->ports, list) {
if (dsa_port_is_cpu(dp)) {
struct net_device *master = dp->master;
dsa_tree_for_each_cpu_port(cpu_dp, dst) {
struct net_device *master = cpu_dp->master;
/* Synthesizing an "admin down" state is sufficient for
* the switches to get a notification if the master is
* currently up and running.
*/
dsa_tree_master_admin_state_change(dst, master, false);
/* Synthesizing an "admin down" state is sufficient for
* the switches to get a notification if the master is
* currently up and running.
*/
dsa_tree_master_admin_state_change(dst, master, false);
dsa_master_teardown(master);
}
dsa_master_teardown(master);
}
rtnl_unlock();