netdevsim: Fix build error without CONFIG_INET

If CONFIG_INET is not set, building fails:

drivers/net/netdevsim/dev.o: In function `nsim_dev_trap_report_work':
dev.c:(.text+0x67b): undefined reference to `ip_send_check'

Use ip_fast_csum instead of ip_send_check to avoid
dependencies on CONFIG_INET.

Reported-by: Hulk Robot <hulkci@huawei.com>
Fixes: da58f90f11f5 ("netdevsim: Add devlink-trap support")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Tested-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/netdevsim/dev.c b/drivers/net/netdevsim/dev.c
index c5b026150bf5140593becd1fed315bd1c7cebd70..39cdb6c18ec0e933b66eaa1ac2ea33aebfc74b4c 100644 (file)
--- a/drivers/net/netdevsim/dev.c
+++ b/drivers/net/netdevsim/dev.c
@@ -389,7 +389,8 @@ static struct sk_buff *nsim_dev_trap_skb_build(void)
        iph->ihl = 0x5;
        iph->tot_len = htons(tot_len);
        iph->ttl = 100;
-       ip_send_check(iph);
+       iph->check = 0;
+       iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
 
        udph = skb_put_zero(skb, sizeof(struct udphdr) + data_len);
        get_random_bytes(&udph->source, sizeof(u16));