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authorJann Horn <jannh@google.com>2021-02-22 17:25:44 +0100
committerJason A. Donenfeld <Jason@zx2c4.com>2022-07-07 13:26:43 +0200
commit162db58803ae925c044640dbb0f19da1b20297a5 (patch)
tree746dcf6d324977752e2c81f7bfc51c19e7dd7bf6
parent3f85f32a82c1f9ef29034c297e715a2f23981b10 (diff)
downloadwireguard-linux-trimmed-162db58803ae925c044640dbb0f19da1b20297a5.tar.gz
wireguard-linux-trimmed-162db58803ae925c044640dbb0f19da1b20297a5.zip
wireguard: socket: remove bogus __be32 annotation
commit 6c3a6049f6531ea00152a25e05c4480de7a50291 upstream. The endpoint->src_if4 has nothing to do with fixed-endian numbers; remove the bogus annotation. This was introduced in https://git.zx2c4.com/wireguard-monolithic-historical/commit?id=14e7d0a499a676ec55176c0de2f9fcbd34074a82 in the historical WireGuard repo because the old code used to zero-initialize multiple members as follows: endpoint->src4.s_addr = endpoint->src_if4 = fl.saddr = 0; Because fl.saddr is fixed-endian and an assignment returns a value with the type of its left operand, this meant that sparse detected an assignment between values of different endianness. Since then, this assignment was already split up into separate statements; just the cast survived. Signed-off-by: Jann Horn <jannh@google.com> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
-rw-r--r--drivers/net/wireguard/socket.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/wireguard/socket.c b/drivers/net/wireguard/socket.c
index e9c3513..e8eceeb 100644
--- a/drivers/net/wireguard/socket.c
+++ b/drivers/net/wireguard/socket.c
@@ -53,7 +53,7 @@ static int send4(struct wg_device *wg, struct sk_buff *skb,
if (unlikely(!inet_confirm_addr(sock_net(sock), NULL, 0,
fl.saddr, RT_SCOPE_HOST))) {
endpoint->src4.s_addr = 0;
- *(__force __be32 *)&endpoint->src_if4 = 0;
+ endpoint->src_if4 = 0;
fl.saddr = 0;
if (cache)
dst_cache_reset(cache);
@@ -63,7 +63,7 @@ static int send4(struct wg_device *wg, struct sk_buff *skb,
PTR_ERR(rt) == -EINVAL) || (!IS_ERR(rt) &&
rt->dst.dev->ifindex != endpoint->src_if4)))) {
endpoint->src4.s_addr = 0;
- *(__force __be32 *)&endpoint->src_if4 = 0;
+ endpoint->src_if4 = 0;
fl.saddr = 0;
if (cache)
dst_cache_reset(cache);