* [PATCH 1/1] blackhole_dev: remove unused variable 'ethh' in test_blackholedev_init()
@ 2021-05-19 12:27 Zhen Lei
0 siblings, 0 replies; only message in thread
From: Zhen Lei @ 2021-05-19 12:27 UTC (permalink / raw)
To: Mahesh Bandewar, David S . Miller, linux-kernel; +Cc: Zhen Lei
GCC reports the following warning with W=1:
lib/test_blackhole_dev.c:32:17: warning:
variable 'ethh' set but not used [-Wunused-but-set-variable]
32 | struct ethhdr *ethh;
| ^~~~
This variable is not used, remove it to fix the warning.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
---
lib/test_blackhole_dev.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/lib/test_blackhole_dev.c b/lib/test_blackhole_dev.c
index 4c40580a99a3..393a0083d027 100644
--- a/lib/test_blackhole_dev.c
+++ b/lib/test_blackhole_dev.c
@@ -29,7 +29,6 @@ static int __init test_blackholedev_init(void)
{
struct ipv6hdr *ip6h;
struct sk_buff *skb;
- struct ethhdr *ethh;
struct udphdr *uh;
int data_len;
int ret;
@@ -61,7 +60,7 @@ static int __init test_blackholedev_init(void)
ip6h->saddr = in6addr_loopback;
ip6h->daddr = in6addr_loopback;
/* Ether */
- ethh = (struct ethhdr *)skb_push(skb, sizeof(struct ethhdr));
+ (void)skb_push(skb, sizeof(struct ethhdr));
skb_set_mac_header(skb, 0);
skb->protocol = htons(ETH_P_IPV6);
--
2.25.1
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