[PATCH 35/44] net: dsa: export dsa_switch_list

[Ahmad Fatoum <a.fatoum@barebox.org>]

This list will be used by the upcoming bfetch command to
determine whether the running barebox has any DSA drivers bound.

Signed-off-by: Ahmad Fatoum <a.fatoum@barebox.org>
---
 drivers/net/dsa.c | 4 ++++
 include/dsa.h     | 4 ++++
 2 files changed, 8 insertions(+)

diff --git a/drivers/net/dsa.c b/drivers/net/dsa.c
index 537e9dd72ac6..667297e8fea3 100644
--- a/drivers/net/dsa.c
+++ b/drivers/net/dsa.c
@@ -6,6 +6,8 @@
 #include <of_net.h>
 #include <param.h>
 
+LIST_HEAD(dsa_switch_list);
+
 u32 dsa_user_ports(struct dsa_switch *ds)
 {
 	u32 mask = 0;
@@ -472,6 +474,8 @@ int dsa_register_switch(struct dsa_switch *ds)
 
 	ds->tx_buf = dma_alloc(DSA_PKTSIZE);
 
+	list_add_tail(&ds->list, &dsa_switch_list);
+
 	return 0;
 }
 EXPORT_SYMBOL_GPL(dsa_register_switch);
diff --git a/include/dsa.h b/include/dsa.h
index ecf7c4f429f3..b106d5474f7b 100644
--- a/include/dsa.h
+++ b/include/dsa.h
@@ -7,6 +7,7 @@
 #define __DSA_H__
 
 #include <linux/phy.h>
+#include <linux/list.h>
 #include <net.h>
 
 /**
@@ -88,6 +89,7 @@ struct dsa_switch {
 	u32 phys_mii_mask;
 	void *priv;
 	u32 forwarding_enable;
+	struct list_head list;
 };
 
 static inline struct dsa_port *dsa_to_port(struct dsa_switch *ds, int p)
@@ -98,6 +100,8 @@ static inline struct dsa_port *dsa_to_port(struct dsa_switch *ds, int p)
 	return ds->dp[p];
 }
 
+extern struct list_head dsa_switch_list;
+
 int dsa_register_switch(struct dsa_switch *ds);
 u32 dsa_user_ports(struct dsa_switch *ds);
 
-- 
2.39.5