netdev - [PATCH net-next 2/6] cxgb4: Remove unused cxgb4_alloc/free_raw_mac

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Message-ID: <20241013203831.88051-3-linux@treblig.org>
Date: Sun, 13 Oct 2024 21:38:27 +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 2/6] cxgb4: Remove unused cxgb4_alloc/free_raw_mac_filt

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

cxgb4_alloc_raw_mac_filt() and cxgb4_free_raw_mac_filt() have been
unused since they were added in 2019 commit
5fab51581f62 ("cxgb4: Add MPS TCAM refcounting for raw mac filters")

Remove them.

This was also the last use of cxgb4_mps_ref_dec().
Remove it.

Signed-off-by: Dr. David Alan Gilbert <linux@...blig.org>
---
 drivers/net/ethernet/chelsio/cxgb4/cxgb4.h    | 16 -----
 .../net/ethernet/chelsio/cxgb4/cxgb4_mps.c    | 68 -------------------
 2 files changed, 84 deletions(-)

diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
index 1efb0a73ce0e..1c302dfd6503 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
@@ -2141,22 +2141,6 @@ int cxgb4_free_mac_filt(struct adapter *adap, unsigned int viid,
 			unsigned int naddr, const u8 **addr, bool sleep_ok);
 int cxgb4_init_mps_ref_entries(struct adapter *adap);
 void cxgb4_free_mps_ref_entries(struct adapter *adap);
-int cxgb4_free_raw_mac_filt(struct adapter *adap,
-			    unsigned int viid,
-			    const u8 *addr,
-			    const u8 *mask,
-			    unsigned int idx,
-			    u8 lookup_type,
-			    u8 port_id,
-			    bool sleep_ok);
-int cxgb4_alloc_raw_mac_filt(struct adapter *adap,
-			     unsigned int viid,
-			     const u8 *addr,
-			     const u8 *mask,
-			     unsigned int idx,
-			     u8 lookup_type,
-			     u8 port_id,
-			     bool sleep_ok);
 int cxgb4_update_mac_filt(struct port_info *pi, unsigned int viid,
 			  int *tcam_idx, const u8 *addr,
 			  bool persistent, u8 *smt_idx);
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_mps.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_mps.c
index 0e5663d19fcf..60f4d5b5eb3a 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_mps.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_mps.c
@@ -28,28 +28,6 @@ static int cxgb4_mps_ref_dec_by_mac(struct adapter *adap,
 	return ret;
 }
 
-static int cxgb4_mps_ref_dec(struct adapter *adap, u16 idx)
-{
-	struct mps_entries_ref *mps_entry, *tmp;
-	int ret = -EINVAL;
-
-	spin_lock(&adap->mps_ref_lock);
-	list_for_each_entry_safe(mps_entry, tmp, &adap->mps_ref, list) {
-		if (mps_entry->idx == idx) {
-			if (!refcount_dec_and_test(&mps_entry->refcnt)) {
-				spin_unlock(&adap->mps_ref_lock);
-				return -EBUSY;
-			}
-			list_del(&mps_entry->list);
-			kfree(mps_entry);
-			ret = 0;
-			break;
-		}
-	}
-	spin_unlock(&adap->mps_ref_lock);
-	return ret;
-}
-
 static int cxgb4_mps_ref_inc(struct adapter *adap, const u8 *mac_addr,
 			     u16 idx, const u8 *mask)
 {
@@ -141,52 +119,6 @@ int cxgb4_update_mac_filt(struct port_info *pi, unsigned int viid,
 	return ret;
 }
 
-int cxgb4_free_raw_mac_filt(struct adapter *adap,
-			    unsigned int viid,
-			    const u8 *addr,
-			    const u8 *mask,
-			    unsigned int idx,
-			    u8 lookup_type,
-			    u8 port_id,
-			    bool sleep_ok)
-{
-	int ret = 0;
-
-	if (!cxgb4_mps_ref_dec(adap, idx))
-		ret = t4_free_raw_mac_filt(adap, viid, addr,
-					   mask, idx, lookup_type,
-					   port_id, sleep_ok);
-
-	return ret;
-}
-
-int cxgb4_alloc_raw_mac_filt(struct adapter *adap,
-			     unsigned int viid,
-			     const u8 *addr,
-			     const u8 *mask,
-			     unsigned int idx,
-			     u8 lookup_type,
-			     u8 port_id,
-			     bool sleep_ok)
-{
-	int ret;
-
-	ret = t4_alloc_raw_mac_filt(adap, viid, addr,
-				    mask, idx, lookup_type,
-				    port_id, sleep_ok);
-	if (ret < 0)
-		return ret;
-
-	if (cxgb4_mps_ref_inc(adap, addr, ret, mask)) {
-		ret = -ENOMEM;
-		t4_free_raw_mac_filt(adap, viid, addr,
-				     mask, idx, lookup_type,
-				     port_id, sleep_ok);
-	}
-
-	return ret;
-}
-
 int cxgb4_init_mps_ref_entries(struct adapter *adap)
 {
 	spin_lock_init(&adap->mps_ref_lock);
-- 
2.47.0