diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2024-04-08 09:42:03 +0200 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2024-04-09 15:49:19 +0200 |
| commit | cf1b7201df59fb936f40f4a807433fe3f2ce310a (patch) | |
| tree | e93905bf8d816afa25f78e5e0bade959bad6785e /net | |
| parent | 74043489fcb5e5ca4074133582b5b8011b67f9e7 (diff) | |
| download | linux-cf1b7201df59fb936f40f4a807433fe3f2ce310a.tar.gz | |
ipv4/route: avoid unused-but-set-variable warning
The log_martians variable is only used in an #ifdef, causing a 'make W=1'
warning with gcc:
net/ipv4/route.c: In function 'ip_rt_send_redirect':
net/ipv4/route.c:880:13: error: variable 'log_martians' set but not used [-Werror=unused-but-set-variable]
Change the #ifdef to an equivalent IS_ENABLED() to let the compiler
see where the variable is used.
Fixes: 30038fc61adf ("net: ip_rt_send_redirect() optimization")
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20240408074219.3030256-2-arnd@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv4/route.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/net/ipv4/route.c b/net/ipv4/route.c index c8f76f56dc1653..d36ace160d426f 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -926,13 +926,11 @@ void ip_rt_send_redirect(struct sk_buff *skb) icmp_send(skb, ICMP_REDIRECT, ICMP_REDIR_HOST, gw); peer->rate_last = jiffies; ++peer->n_redirects; -#ifdef CONFIG_IP_ROUTE_VERBOSE - if (log_martians && + if (IS_ENABLED(CONFIG_IP_ROUTE_VERBOSE) && log_martians && peer->n_redirects == ip_rt_redirect_number) net_warn_ratelimited("host %pI4/if%d ignores redirects for %pI4 to %pI4\n", &ip_hdr(skb)->saddr, inet_iif(skb), &ip_hdr(skb)->daddr, &gw); -#endif } out_put_peer: inet_putpeer(peer); |