Subject: [PATCH] net: ethernet: ti: cpsw_ale: optimize cpsw_ale_restore()

From: Roger Quadros <[email-masked]>
Date: Tue, 8 Nov 2022 15:56:43 +0200

If an entry was FREE then we don't have to restore it.

Signed-off-by: Roger Quadros <[email-masked]>
---

Patch depends on
https://lore.kernel.org/netdev/[email-masked]/T/

 drivers/net/ethernet/ti/cpsw_ale.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/ti/cpsw_ale.c b/drivers/net/ethernet/ti/cpsw_ale.c
index 0c5e783e574c..41bcf34a22f8 100644
--- a/drivers/net/ethernet/ti/cpsw_ale.c
+++ b/drivers/net/ethernet/ti/cpsw_ale.c
@@ -1452,12 +1452,15 @@ void cpsw_ale_dump(struct cpsw_ale *ale, u32 *data)
 	}
 }
 
+/* ALE table should be cleared (ALE_CLEAR) before cpsw_ale_restore() */
 void cpsw_ale_restore(struct cpsw_ale *ale, u32 *data)
 {
-	int i;
+	int i, type;
 
 	for (i = 0; i < ale->params.ale_entries; i++) {
-		cpsw_ale_write(ale, i, data);
+		type = cpsw_ale_get_entry_type(data);
+		if (type != ALE_TYPE_FREE)
+			cpsw_ale_write(ale, i, data);
 		data += ALE_ENTRY_WORDS;
 	}
 }
-- 
2.17.1