[PATCH 4.19 47/80] netlink: remove hash::nelems check in netlink_insert

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From: Li RongQing <lirongqing@xxxxxxxxx>

[ Upstream commit 0041195d55bc38df6b574cc8c36dcf2266fbee39 ]

The type of hash::nelems has been changed from size_t to atom_t
which in fact is int, so not need to check if BITS_PER_LONG, that
is bit number of size_t, is bigger than 32

and rht_grow_above_max() will be called to check if hashtable is
too big, ensure it can not bigger than 1<<31

Signed-off-by: Zhang Yu <zhangyu31@xxxxxxxxx>
Signed-off-by: Li RongQing <lirongqing@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Stable-dep-of: c1bb9484e3b0 ("netlink: annotate data races around nlk->portid")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 net/netlink/af_netlink.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 6ffa83319d08..966c709c3831 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -578,11 +578,6 @@ static int netlink_insert(struct sock *sk, u32 portid)
 	if (nlk_sk(sk)->bound)
 		goto err;
 
-	err = -ENOMEM;
-	if (BITS_PER_LONG > 32 &&
-	    unlikely(atomic_read(&table->hash.nelems) >= UINT_MAX))
-		goto err;
-
 	nlk_sk(sk)->portid = portid;
 	sock_hold(sk);
 
-- 
2.39.0






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