Commit d268c1f5 authored May 09, 2022 by Eric Dumazet Committed by David S. Miller May 11, 2022

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.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 5b87be9e

include/net/net_debug.h

+6 −0

Original line number	Original line	Diff line number	Diff line
	@@ -148,4 +148,10 @@ do { \
	#endif		#endif


			#if defined(CONFIG_DEBUG_NET)
			#define DEBUG_NET_WARN_ON_ONCE(cond) (void)WARN_ON_ONCE(cond)
			#else
			#define DEBUG_NET_WARN_ON_ONCE(cond) BUILD_BUG_ON_INVALID(cond)
			#endif

	#endif /* _LINUX_NET_DEBUG_H */		#endif /* _LINUX_NET_DEBUG_H */

net/Kconfig.debug

+7 −0

Original line number	Original line	Diff line number	Diff line
	@@ -17,3 +17,10 @@ config NET_NS_REFCNT_TRACKER
	help		help
	Enable debugging feature to track netns references.		Enable debugging feature to track netns references.
	This adds memory and cpu costs.		This adds memory and cpu costs.

			config DEBUG_NET
			bool "Add generic networking debug"
			depends on DEBUG_KERNEL
			help
			Enable extra sanity checks in networking.
			This is mostly used by fuzzers, but is safe to select.