[PATCH net-next 05/11] net: dsa: setup and teardown switches

[Vivien Didelot]

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.dide...@savoirfairelinux.com>
---
 net/dsa/dsa2.c | 62 ++++++++++++++++++++++++++++++++++++----------------------
 1 file changed, 39 insertions(+), 23 deletions(-)

diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c
index 1a8df0a177b5..2b3b2a86791d 100644
--- a/net/dsa/dsa2.c
+++ b/net/dsa/dsa2.c
@@ -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);
 
-- 
2.14.3