queue-6.1/net-blackhole_dev-fix-build-warning-for-ethh-set-but.patch

   1 From 9bebd19d4ec54e9e340262d2e4ec0edd6c475b96 Mon Sep 17 00:00:00 2001
   2 From: Sasha Levin <sashal@kernel.org>
   3 Date: Fri, 2 Feb 2024 07:13:29 -0800
   4 Subject: net: blackhole_dev: fix build warning for ethh set but not used
   5
   6 From: Breno Leitao <leitao@debian.org>
   7
   8 [ Upstream commit 843a8851e89e2e85db04caaf88d8554818319047 ]
   9
  10 lib/test_blackhole_dev.c sets a variable that is never read, causing
  11 this following building warning:
  12
  13         lib/test_blackhole_dev.c:32:17: warning: variable 'ethh' set but not used [-Wunused-but-set-variable]
  14
  15 Remove the variable struct ethhdr *ethh, which is unused.
  16
  17 Fixes: 509e56b37cc3 ("blackhole_dev: add a selftest")
  18 Signed-off-by: Breno Leitao <leitao@debian.org>
  19 Reviewed-by: Jiri Pirko <jiri@nvidia.com>
  20 Signed-off-by: David S. Miller <davem@davemloft.net>
  21 Signed-off-by: Sasha Levin <sashal@kernel.org>
  22 ---
  23  lib/test_blackhole_dev.c | 3 +--
  24  1 file changed, 1 insertion(+), 2 deletions(-)
  25
  26 diff --git a/lib/test_blackhole_dev.c b/lib/test_blackhole_dev.c
  27 index 4c40580a99a36..f247089d63c08 100644
  28 --- a/lib/test_blackhole_dev.c
  29 +++ b/lib/test_blackhole_dev.c
  30 @@ -29,7 +29,6 @@ static int __init test_blackholedev_init(void)
  31  {
  32         struct ipv6hdr *ip6h;
  33         struct sk_buff *skb;
  34 -       struct ethhdr *ethh;
  35         struct udphdr *uh;
  36         int data_len;
  37         int ret;
  38 @@ -61,7 +60,7 @@ static int __init test_blackholedev_init(void)
  39         ip6h->saddr = in6addr_loopback;
  40         ip6h->daddr = in6addr_loopback;
  41         /* Ether */
  42 -       ethh = (struct ethhdr *)skb_push(skb, sizeof(struct ethhdr));
  43 +       skb_push(skb, sizeof(struct ethhdr));
  44         skb_set_mac_header(skb, 0);
  45
  46         skb->protocol = htons(ETH_P_IPV6);
  47 --
  48 2.43.0
  49