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authorYing Xue <ying.xue@windriver.com>2015-08-19 10:46:17 +0300
committerDavid S. Miller <davem@davemloft.net>2015-08-20 03:37:51 +0300
commit824e7383e92815cb591793c74cc836aa5165f7f8 (patch)
treea6b56b9a67b8124895f9261a047c99830533bcb9 /include/net/lwtunnel.h
parentdef63be85fe774477fb66043003e5b2ee748c4fa (diff)
downloadlinux-824e7383e92815cb591793c74cc836aa5165f7f8.tar.xz
lwtunnel: Fix the sparse warnings in fib_encap_match
When CONFIG_LWTUNNEL config is not enabled, the lwtstate_free() is not declared in lwtunnel.h at all. However, even in this case, the function is still referenced in fib_semantics.c so that there appears the following sparse warnings: net/ipv4/fib_semantics.c:553:17: error: undefined identifier 'lwtstate_free' CC net/ipv4/fib_semantics.o net/ipv4/fib_semantics.c: In function ‘fib_encap_match’: net/ipv4/fib_semantics.c:553:3: error: implicit declaration of function ‘lwtstate_free’ [-Werror=implicit-function-declaration] cc1: some warnings being treated as errors make[1]: *** [net/ipv4/fib_semantics.o] Error 1 make: *** [net/ipv4/fib_semantics.o] Error 2 To eliminate the error, we define an empty function for lwtstate_free() in lwtunnel.h when CONFIG_LWTUNNEL is disabled. Fixes: df383e6240ef ("lwtunnel: fix memory leak") Cc: Jiri Benc <jbenc@redhat.com> Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Ying Xue <ying.xue@windriver.com> Acked-by: Jiri Benc <jbenc@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/lwtunnel.h')
-rw-r--r--include/net/lwtunnel.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/net/lwtunnel.h b/include/net/lwtunnel.h
index 34fd8f70c2ca..cfee53916ba5 100644
--- a/include/net/lwtunnel.h
+++ b/include/net/lwtunnel.h
@@ -93,6 +93,10 @@ int lwtunnel_input6(struct sk_buff *skb);
#else
+static inline void lwtstate_free(struct lwtunnel_state *lws)
+{
+}
+
static inline struct lwtunnel_state *
lwtstate_get(struct lwtunnel_state *lws)
{