[PATCH net] net/ipv4: avoid compile error in fib_info_nh_uses_dev

[Eric Dumazet]

net/ipv4/fib_frontend.c: In function 'fib_info_nh_uses_dev':
net/ipv4/fib_frontend.c:322:6: error: unused variable 'ret' 
[-Werror=unused-variable]
cc1: all warnings being treated as errors

Fixes: 78f2756c5fc0 ("net/ipv4: Move device validation to helper")
Signed-off-by: Eric Dumazet <eduma...@google.com>
Cc: David Ahern <dsah...@gmail.com>
---
 net/ipv4/fib_frontend.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index 
222b968de94cbff98c4a1b4a2f298b2e68452984..30e2bcc3ef2a293568076228fecf3cf07ba01f20
 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -318,9 +318,9 @@ __be32 fib_compute_spec_dst(struct sk_buff *skb)
 bool fib_info_nh_uses_dev(struct fib_info *fi, const struct net_device *dev)
 {
        bool dev_match = false;
+#ifdef CONFIG_IP_ROUTE_MULTIPATH
        int ret;
 
-#ifdef CONFIG_IP_ROUTE_MULTIPATH
        for (ret = 0; ret < fi->fib_nhs; ret++) {
                struct fib_nh *nh = &fi->fib_nh[ret];
 
-- 
2.19.0.444.g18242da7ef-goog