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c0cb86e1d5
Rather than using the clunky, old, slower wireguard-linux-compat out of tree module, this commit does a patch-by-patch backport of upstream's wireguard to 5.4. This specific backport is in widespread use, being part of SUSE's enterprise kernel, Oracle's enterprise kernel, Google's Android kernel, Gentoo's distro kernel, and probably more I've forgotten about. It's definately the "more proper" way of adding wireguard to a kernel than the ugly compat.h hell of the wireguard-linux-compat repo. And most importantly for OpenWRT, it allows using the same module configuration code for 5.10 as for 5.4, with no need for bifurcation. These patches are from the backport tree which is maintained in the open here: https://git.zx2c4.com/wireguard-linux/log/?h=backport-5.4.y I'll be sending PRs to update this as needed. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> (cherry picked from commit3888fa7880) (cherry picked from commitd540725871) (cherry picked from commit196f3d586f) (cherry picked from commit3500fd7938) (cherry picked from commit23b801d3ba) (cherry picked from commit0c0cb97da7) (cherry picked from commit2a27f6f90a) Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
42 lines
1.5 KiB
Diff
42 lines
1.5 KiB
Diff
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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