net: add CONFIG_DEBUG_NET

This config option enables network debugging checks. This patch adds DEBUG_NET_WARN_ON_ONCE(cond) Note that this is not a replacement for WARN_ON_ONCE(cond) as (cond) is not evaluated if CONFIG_DEBUG_NET is not set.

Eric Dumazet committed 4 years ago

Commit d268c1f1 parent 5b87be92 files · +13 −0Browse files

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include/net/net_debug.h+6−0

@@ -148,4 +148,10 @@ do { \ · 147 unmodified lines
148	148	#endif
149	149
150	150
	151	+#if defined(CONFIG_DEBUG_NET)
	152	+#define DEBUG_NET_WARN_ON_ONCE(cond) (void)WARN_ON_ONCE(cond)
	153	+#else
	154	+#define DEBUG_NET_WARN_ON_ONCE(cond) BUILD_BUG_ON_INVALID(cond)
	155	+#endif
	156	+
151	157	#endif /* _LINUX_NET_DEBUG_H */