linux-kernel - [PATCH net-next 3/6] cxgb4: Remove unused cxgb4_get_srq

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Message-ID: <20241013203831.88051-4-linux@treblig.org>
Date: Sun, 13 Oct 2024 21:38:28 +0100
From: linux@...blig.org
To: bharat@...lsio.com,
	davem@...emloft.net,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com
Cc: netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	"Dr. David Alan Gilbert" <linux@...blig.org>
Subject: [PATCH net-next 3/6] cxgb4: Remove unused cxgb4_get_srq_entry

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

cxgb4_get_srq_entry() has been unused since 2018's commit
e47094751ddc ("cxgb4: Add support to initialise/read SRQ entries")
which added it.

Remove it.

Note: I'm a bit suspicious whether any of the srq code in there
actually does anything useful;  without this get I can't see anything
that reads the data, so perhaps the whole thing should go?
But that however would remove one of the opcode handlers, and I have
no way to test that.

Signed-off-by: Dr. David Alan Gilbert <linux@...blig.org>
---
 drivers/net/ethernet/chelsio/cxgb4/srq.c | 58 ------------------------
 drivers/net/ethernet/chelsio/cxgb4/srq.h |  2 -
 2 files changed, 60 deletions(-)

diff --git a/drivers/net/ethernet/chelsio/cxgb4/srq.c b/drivers/net/ethernet/chelsio/cxgb4/srq.c
index 9a54302bb046..a77d6ac1ee8c 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/srq.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/srq.c
@@ -51,64 +51,6 @@ struct srq_data *t4_init_srq(int srq_size)
 	return s;
 }
 
-/* cxgb4_get_srq_entry: read the SRQ table entry
- * @dev: Pointer to the net_device
- * @idx: Index to the srq
- * @entryp: pointer to the srq entry
- *
- * Sends CPL_SRQ_TABLE_REQ message for the given index.
- * Contents will be returned in CPL_SRQ_TABLE_RPL message.
- *
- * Returns zero if the read is successful, else a error
- * number will be returned. Caller should not use the srq
- * entry if the return value is non-zero.
- *
- *
- */
-int cxgb4_get_srq_entry(struct net_device *dev,
-			int srq_idx, struct srq_entry *entryp)
-{
-	struct cpl_srq_table_req *req;
-	struct adapter *adap;
-	struct sk_buff *skb;
-	struct srq_data *s;
-	int rc = -ENODEV;
-
-	adap = netdev2adap(dev);
-	s = adap->srq;
-
-	if (!(adap->flags & CXGB4_FULL_INIT_DONE) || !s)
-		goto out;
-
-	skb = alloc_skb(sizeof(*req), GFP_KERNEL);
-	if (!skb)
-		return -ENOMEM;
-	req = (struct cpl_srq_table_req *)
-		__skb_put_zero(skb, sizeof(*req));
-	INIT_TP_WR(req, 0);
-	OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_SRQ_TABLE_REQ,
-					      TID_TID_V(srq_idx) |
-				TID_QID_V(adap->sge.fw_evtq.abs_id)));
-	req->idx = srq_idx;
-
-	mutex_lock(&s->lock);
-
-	s->entryp = entryp;
-	t4_mgmt_tx(adap, skb);
-
-	rc = wait_for_completion_timeout(&s->comp, SRQ_WAIT_TO);
-	if (rc)
-		rc = 0;
-	else /* !rc means we timed out */
-		rc = -ETIMEDOUT;
-
-	WARN_ON_ONCE(entryp->idx != srq_idx);
-	mutex_unlock(&s->lock);
-out:
-	return rc;
-}
-EXPORT_SYMBOL(cxgb4_get_srq_entry);
-
 void do_srq_table_rpl(struct adapter *adap,
 		      const struct cpl_srq_table_rpl *rpl)
 {
diff --git a/drivers/net/ethernet/chelsio/cxgb4/srq.h b/drivers/net/ethernet/chelsio/cxgb4/srq.h
index ec85cf93865a..d9f04bd5ffa3 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/srq.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/srq.h
@@ -58,8 +58,6 @@ struct srq_data {
 };
 
 struct srq_data *t4_init_srq(int srq_size);
-int cxgb4_get_srq_entry(struct net_device *dev,
-			int srq_idx, struct srq_entry *entryp);
 void do_srq_table_rpl(struct adapter *adap,
 		      const struct cpl_srq_table_rpl *rpl);
 #endif  /* __CXGB4_SRQ_H */
-- 
2.47.0