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net: dsa: setup and teardown switches

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This patches brings no functional changes. It removes the unused dst
argument from the dsa_ds_apply and dsa_ds_unapply functions, rename them
to dsa_switch_setup and dsa_switch_teardown for a more explicit scope.

This clarifies the steps of the setup or teardown of a switch fabric.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vivien Didelot 2017-11-06 16:11:47 -05:00 committed by David S. Miller
parent ec15dd4269
commit 1f08f9e9cb
1 changed files with 39 additions and 23 deletions
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62
net/dsa/dsa2.c
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@ -362,7 +362,7 @@ static void dsa_user_port_unapply(struct dsa_port *port)
}
}
static int dsa_ds_apply(struct dsa_switch_tree *dst, struct dsa_switch *ds)
static int dsa_switch_setup(struct dsa_switch *ds)
{
struct dsa_port *port;
u32 index;
@ -433,7 +433,7 @@ static int dsa_ds_apply(struct dsa_switch_tree *dst, struct dsa_switch *ds)
return 0;
}
static void dsa_ds_unapply(struct dsa_switch_tree *dst, struct dsa_switch *ds)
static void dsa_switch_teardown(struct dsa_switch *ds)
{
struct dsa_port *port;
u32 index;
@ -469,6 +469,39 @@ static void dsa_ds_unapply(struct dsa_switch_tree *dst, struct dsa_switch *ds)
}
static int dsa_tree_setup_switches(struct dsa_switch_tree *dst)
{
struct dsa_switch *ds;
int device;
int err;
for (device = 0; device < DSA_MAX_SWITCHES; device++) {
ds = dst->ds[device];
if (!ds)
continue;
err = dsa_switch_setup(ds);
if (err)
return err;
}
return 0;
}
static void dsa_tree_teardown_switches(struct dsa_switch_tree *dst)
{
struct dsa_switch *ds;
int device;
for (device = 0; device < DSA_MAX_SWITCHES; device++) {
ds = dst->ds[device];
if (!ds)
continue;
dsa_switch_teardown(ds);
}
}
static int dsa_tree_setup_master(struct dsa_switch_tree *dst)
{
struct dsa_port *cpu_dp = dst->cpu_dp;
@ -488,8 +521,6 @@ static void dsa_tree_teardown_master(struct dsa_switch_tree *dst)
static int dsa_tree_setup(struct dsa_switch_tree *dst)
{
struct dsa_switch *ds;
u32 index;
int err;
if (dst->setup) {
@ -502,15 +533,9 @@ static int dsa_tree_setup(struct dsa_switch_tree *dst)
if (err)
return err;
for (index = 0; index < DSA_MAX_SWITCHES; index++) {
ds = dst->ds[index];
if (!ds)
continue;
err = dsa_ds_apply(dst, ds);
if (err)
return err;
}
err = dsa_tree_setup_switches(dst);
if (err)
return err;
err = dsa_tree_setup_master(dst);
if (err)
@ -525,21 +550,12 @@ static int dsa_tree_setup(struct dsa_switch_tree *dst)
static void dsa_tree_teardown(struct dsa_switch_tree *dst)
{
struct dsa_switch *ds;
u32 index;
if (!dst->setup)
return;
dsa_tree_teardown_master(dst);
for (index = 0; index < DSA_MAX_SWITCHES; index++) {
ds = dst->ds[index];
if (!ds)
continue;
dsa_ds_unapply(dst, ds);
}
dsa_tree_teardown_switches(dst);
dsa_tree_teardown_default_cpu(dst);