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42 lines
1.5 KiB
Diff
42 lines
1.5 KiB
Diff
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Wei Yongjun <weiyongjun1@huawei.com>
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Date: Sun, 15 Dec 2019 22:08:04 +0100
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Subject: [PATCH] wireguard: allowedips: use kfree_rcu() instead of call_rcu()
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commit d89ee7d5c73af15c1c6f12b016cdf469742b5726 upstream.
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The callback function of call_rcu() just calls a kfree(), so we
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can use kfree_rcu() instead of call_rcu() + callback function.
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Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
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Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
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---
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drivers/net/wireguard/allowedips.c | 7 +------
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1 file changed, 1 insertion(+), 6 deletions(-)
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--- a/drivers/net/wireguard/allowedips.c
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+++ b/drivers/net/wireguard/allowedips.c
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@@ -31,11 +31,6 @@ static void copy_and_assign_cidr(struct
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#define CHOOSE_NODE(parent, key) \
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parent->bit[(key[parent->bit_at_a] >> parent->bit_at_b) & 1]
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-static void node_free_rcu(struct rcu_head *rcu)
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-{
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- kfree(container_of(rcu, struct allowedips_node, rcu));
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-}
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-
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static void push_rcu(struct allowedips_node **stack,
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struct allowedips_node __rcu *p, unsigned int *len)
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{
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@@ -112,7 +107,7 @@ static void walk_remove_by_peer(struct a
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if (!node->bit[0] || !node->bit[1]) {
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rcu_assign_pointer(*nptr, DEREF(
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&node->bit[!REF(node->bit[0])]));
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- call_rcu(&node->rcu, node_free_rcu);
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+ kfree_rcu(node, rcu);
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node = DEREF(nptr);
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}
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}
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