Patch "neighbour: delete neigh_lookup_nodev as not used" has been added to the 4.19-stable tree

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This is a note to let you know that I've just added the patch titled

    neighbour: delete neigh_lookup_nodev as not used

to the 4.19-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     neighbour-delete-neigh_lookup_nodev-as-not-used.patch
and it can be found in the queue-4.19 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.


>From 76b9bf965c98c9b53ef7420b3b11438dbd764f92 Mon Sep 17 00:00:00 2001
From: Leon Romanovsky <leonro@xxxxxxxxxx>
Date: Wed, 8 Mar 2023 11:23:13 +0200
Subject: neighbour: delete neigh_lookup_nodev as not used

From: Leon Romanovsky <leonro@xxxxxxxxxx>

commit 76b9bf965c98c9b53ef7420b3b11438dbd764f92 upstream.

neigh_lookup_nodev isn't used in the kernel after removal
of DECnet. So let's remove it.

Fixes: 1202cdd66531 ("Remove DECnet support from kernel")
Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxx>
Reviewed-by: Eric Dumazet <edumazet@xxxxxxxxxx>
Reviewed-by: Nikolay Aleksandrov <razor@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/eb5656200d7964b2d177a36b77efa3c597d6d72d.1678267343.git.leonro@xxxxxxxxxx
Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 include/net/neighbour.h |    2 --
 net/core/neighbour.c    |   31 -------------------------------
 2 files changed, 33 deletions(-)

--- a/include/net/neighbour.h
+++ b/include/net/neighbour.h
@@ -300,8 +300,6 @@ void neigh_table_init(int index, struct
 int neigh_table_clear(int index, struct neigh_table *tbl);
 struct neighbour *neigh_lookup(struct neigh_table *tbl, const void *pkey,
 			       struct net_device *dev);
-struct neighbour *neigh_lookup_nodev(struct neigh_table *tbl, struct net *net,
-				     const void *pkey);
 struct neighbour *__neigh_create(struct neigh_table *tbl, const void *pkey,
 				 struct net_device *dev, bool want_ref);
 static inline struct neighbour *neigh_create(struct neigh_table *tbl,
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -476,37 +476,6 @@ struct neighbour *neigh_lookup(struct ne
 }
 EXPORT_SYMBOL(neigh_lookup);
 
-struct neighbour *neigh_lookup_nodev(struct neigh_table *tbl, struct net *net,
-				     const void *pkey)
-{
-	struct neighbour *n;
-	unsigned int key_len = tbl->key_len;
-	u32 hash_val;
-	struct neigh_hash_table *nht;
-
-	NEIGH_CACHE_STAT_INC(tbl, lookups);
-
-	rcu_read_lock_bh();
-	nht = rcu_dereference_bh(tbl->nht);
-	hash_val = tbl->hash(pkey, NULL, nht->hash_rnd) >> (32 - nht->hash_shift);
-
-	for (n = rcu_dereference_bh(nht->hash_buckets[hash_val]);
-	     n != NULL;
-	     n = rcu_dereference_bh(n->next)) {
-		if (!memcmp(n->primary_key, pkey, key_len) &&
-		    net_eq(dev_net(n->dev), net)) {
-			if (!refcount_inc_not_zero(&n->refcnt))
-				n = NULL;
-			NEIGH_CACHE_STAT_INC(tbl, hits);
-			break;
-		}
-	}
-
-	rcu_read_unlock_bh();
-	return n;
-}
-EXPORT_SYMBOL(neigh_lookup_nodev);
-
 struct neighbour *__neigh_create(struct neigh_table *tbl, const void *pkey,
 				 struct net_device *dev, bool want_ref)
 {


Patches currently in stable-queue which might be from leonro@xxxxxxxxxx are

queue-4.19/neighbour-delete-neigh_lookup_nodev-as-not-used.patch



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