[PATCH] igmp: fix build warning
From: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Date: 2016-02-16 08:22:41
Also in:
lkml
Subsystem:
networking [general], networking [ipv4/ipv6], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, David Ahern, Ido Schimmel, Linus Torvalds
We were getting build warnings about: net/ipv4/igmp.c: In function ‘igmp_group_added’: net/ipv4/igmp.c:1227:14: warning: unused variable ‘net’ [-Wunused-variable] net/ipv4/igmp.c: In function ‘ip_mc_inc_group’: net/ipv4/igmp.c:1319:14: warning: unused variable ‘net’ [-Wunused-variable] net/ipv4/igmp.c: In function ‘ip_mc_init_dev’: net/ipv4/igmp.c:1646:14: warning: unused variable ‘net’ [-Wunused-variable] net/ipv4/igmp.c: In function ‘ip_mc_up’: net/ipv4/igmp.c:1665:14: warning: unused variable ‘net’ [-Wunused-variable] These variables are only used when CONFIG_IP_MULTICAST is defined. Mark them as '__maybe_unused'. Signed-off-by: Sudip Mukherjee <redacted> --- net/ipv4/igmp.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index 7c95335..0ba241b 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c@@ -1224,7 +1224,7 @@ static void igmp_group_dropped(struct ip_mc_list *im) static void igmp_group_added(struct ip_mc_list *im) { struct in_device *in_dev = im->interface; - struct net *net = dev_net(in_dev->dev); + struct net __maybe_unused *net = dev_net(in_dev->dev); if (im->loaded == 0) { im->loaded = 1;
@@ -1316,7 +1316,7 @@ static void ip_mc_hash_remove(struct in_device *in_dev, void ip_mc_inc_group(struct in_device *in_dev, __be32 addr) { struct ip_mc_list *im; - struct net *net = dev_net(in_dev->dev); + struct net __maybe_unused *net = dev_net(in_dev->dev); ASSERT_RTNL();
@@ -1643,7 +1643,7 @@ void ip_mc_down(struct in_device *in_dev) void ip_mc_init_dev(struct in_device *in_dev) { - struct net *net = dev_net(in_dev->dev); + struct net __maybe_unused *net = dev_net(in_dev->dev); ASSERT_RTNL(); #ifdef CONFIG_IP_MULTICAST
@@ -1662,7 +1662,7 @@ void ip_mc_init_dev(struct in_device *in_dev) void ip_mc_up(struct in_device *in_dev) { struct ip_mc_list *pmc; - struct net *net = dev_net(in_dev->dev); + struct net __maybe_unused *net = dev_net(in_dev->dev); ASSERT_RTNL();
--
1.9.1