From: Vivien Didelot <vivien.didelot@gmail.com>
Date: Thu, 31 Oct 2019 02:09:16 +0000 (-0400)
Subject: net: dsa: remove the dst->ds array
X-Git-Tag: v5.5-rc1~174^2~255^2~3
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=9c8ad1ab66b577526a4c89e4a222e0fac431a2d6;p=linux.git

net: dsa: remove the dst->ds array

Now that the DSA ports are listed in the switch fabric, there is
no need to store the dsa_switch structures from the drivers in the
fabric anymore. So get rid of the dst->ds static array.

Signed-off-by: Vivien Didelot <vivien.didelot@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/include/net/dsa.h b/include/net/dsa.h
index b46222adb5c2..e4c697b95c70 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -125,11 +125,6 @@ struct dsa_switch_tree {
 
 	/* List of DSA links composing the routing table */
 	struct list_head rtable;
-
-	/*
-	 * Data for the individual switch chips.
-	 */
-	struct dsa_switch	*ds[DSA_MAX_SWITCHES];
 };
 
 /* TC matchall action types, only mirroring for now */
diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c
index a887231fff13..92e71b12b729 100644
--- a/net/dsa/dsa2.c
+++ b/net/dsa/dsa2.c
@@ -578,25 +578,18 @@ static void dsa_tree_remove_switch(struct dsa_switch_tree *dst,
 {
 	dsa_tree_teardown(dst);
 
-	dst->ds[index] = NULL;
 	dsa_tree_put(dst);
 }
 
 static int dsa_tree_add_switch(struct dsa_switch_tree *dst,
 			       struct dsa_switch *ds)
 {
-	unsigned int index = ds->index;
 	int err;
 
-	if (dst->ds[index])
-		return -EBUSY;
-
 	dsa_tree_get(dst);
-	dst->ds[index] = ds;
 
 	err = dsa_tree_setup(dst);
 	if (err) {
-		dst->ds[index] = NULL;
 		dsa_tree_put(dst);
 	}