linux-kernel - [PATCH net-next] cxgb3/l2t: Remove unused t3_l2t_send

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Message-ID: <20250609152330.24027-1-linux@treblig.org>
Date: Mon,  9 Jun 2025 16:23:30 +0100
From: linux@...blig.org
To: bharat@...lsio.com
Cc: andrew+netdev@...n.ch,
	davem@...emloft.net,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	"Dr. David Alan Gilbert" <linux@...blig.org>
Subject: [PATCH net-next] cxgb3/l2t: Remove unused t3_l2t_send_event

From: "Dr. David Alan Gilbert" <linux@...blig.org>

The last use of t3_l2t_send_event() was removed in 2019 by
commit 30e0f6cf5acb ("RDMA/iw_cxgb3: Remove the iw_cxgb3 module from
kernel")

Remove it.

Signed-off-by: Dr. David Alan Gilbert <linux@...blig.org>
---
 drivers/net/ethernet/chelsio/cxgb3/l2t.c | 37 ------------------------
 drivers/net/ethernet/chelsio/cxgb3/l2t.h |  1 -
 2 files changed, 38 deletions(-)

diff --git a/drivers/net/ethernet/chelsio/cxgb3/l2t.c b/drivers/net/ethernet/chelsio/cxgb3/l2t.c
index 9749d1239f58..5d5f3380ecca 100644
--- a/drivers/net/ethernet/chelsio/cxgb3/l2t.c
+++ b/drivers/net/ethernet/chelsio/cxgb3/l2t.c
@@ -176,43 +176,6 @@ int t3_l2t_send_slow(struct t3cdev *dev, struct sk_buff *skb,
 
 EXPORT_SYMBOL(t3_l2t_send_slow);
 
-void t3_l2t_send_event(struct t3cdev *dev, struct l2t_entry *e)
-{
-again:
-	switch (e->state) {
-	case L2T_STATE_STALE:	/* entry is stale, kick off revalidation */
-		neigh_event_send(e->neigh, NULL);
-		spin_lock_bh(&e->lock);
-		if (e->state == L2T_STATE_STALE) {
-			e->state = L2T_STATE_VALID;
-		}
-		spin_unlock_bh(&e->lock);
-		return;
-	case L2T_STATE_VALID:	/* fast-path, send the packet on */
-		return;
-	case L2T_STATE_RESOLVING:
-		spin_lock_bh(&e->lock);
-		if (e->state != L2T_STATE_RESOLVING) {
-			/* ARP already completed */
-			spin_unlock_bh(&e->lock);
-			goto again;
-		}
-		spin_unlock_bh(&e->lock);
-
-		/*
-		 * Only the first packet added to the arpq should kick off
-		 * resolution.  However, because the alloc_skb below can fail,
-		 * we allow each packet added to the arpq to retry resolution
-		 * as a way of recovering from transient memory exhaustion.
-		 * A better way would be to use a work request to retry L2T
-		 * entries when there's no memory.
-		 */
-		neigh_event_send(e->neigh, NULL);
-	}
-}
-
-EXPORT_SYMBOL(t3_l2t_send_event);
-
 /*
  * Allocate a free L2T entry.  Must be called with l2t_data.lock held.
  */
diff --git a/drivers/net/ethernet/chelsio/cxgb3/l2t.h b/drivers/net/ethernet/chelsio/cxgb3/l2t.h
index 646ca0bc25bd..33558f177497 100644
--- a/drivers/net/ethernet/chelsio/cxgb3/l2t.h
+++ b/drivers/net/ethernet/chelsio/cxgb3/l2t.h
@@ -113,7 +113,6 @@ struct l2t_entry *t3_l2t_get(struct t3cdev *cdev, struct dst_entry *dst,
 			     struct net_device *dev, const void *daddr);
 int t3_l2t_send_slow(struct t3cdev *dev, struct sk_buff *skb,
 		     struct l2t_entry *e);
-void t3_l2t_send_event(struct t3cdev *dev, struct l2t_entry *e);
 struct l2t_data *t3_init_l2t(unsigned int l2t_capacity);
 
 int cxgb3_ofld_send(struct t3cdev *dev, struct sk_buff *skb);
-- 
2.49.0