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53 lines
1.9 KiB
Diff
53 lines
1.9 KiB
Diff
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Jann Horn <jannh@google.com>
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Date: Mon, 22 Feb 2021 17:25:44 +0100
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Subject: [PATCH] wireguard: socket: remove bogus __be32 annotation
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commit 7f57bd8dc22de35ddd895294aa554003e4f19a72 upstream.
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The endpoint->src_if4 has nothing to do with fixed-endian numbers; remove
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the bogus annotation.
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This was introduced in
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https://git.zx2c4.com/wireguard-monolithic-historical/commit?id=14e7d0a499a676ec55176c0de2f9fcbd34074a82
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in the historical WireGuard repo because the old code used to
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zero-initialize multiple members as follows:
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endpoint->src4.s_addr = endpoint->src_if4 = fl.saddr = 0;
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Because fl.saddr is fixed-endian and an assignment returns a value with the
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type of its left operand, this meant that sparse detected an assignment
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between values of different endianness.
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Since then, this assignment was already split up into separate statements;
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just the cast survived.
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Signed-off-by: Jann Horn <jannh@google.com>
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Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
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Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
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---
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drivers/net/wireguard/socket.c | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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--- a/drivers/net/wireguard/socket.c
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+++ b/drivers/net/wireguard/socket.c
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@@ -53,7 +53,7 @@ static int send4(struct wg_device *wg, s
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if (unlikely(!inet_confirm_addr(sock_net(sock), NULL, 0,
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fl.saddr, RT_SCOPE_HOST))) {
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endpoint->src4.s_addr = 0;
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- *(__force __be32 *)&endpoint->src_if4 = 0;
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+ endpoint->src_if4 = 0;
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fl.saddr = 0;
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if (cache)
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dst_cache_reset(cache);
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@@ -63,7 +63,7 @@ static int send4(struct wg_device *wg, s
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PTR_ERR(rt) == -EINVAL) || (!IS_ERR(rt) &&
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rt->dst.dev->ifindex != endpoint->src_if4)))) {
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endpoint->src4.s_addr = 0;
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- *(__force __be32 *)&endpoint->src_if4 = 0;
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+ endpoint->src_if4 = 0;
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fl.saddr = 0;
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if (cache)
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dst_cache_reset(cache);
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