diff mbox series

[net-next,3/8] net: use DEBUG_NET_WARN_ON_ONCE() in inet_sock_destruct()

Message ID 20220607171732.21191-4-eric.dumazet@gmail.com (mailing list archive)
State Superseded
Delegated to: Netdev Maintainers
Headers show
Series net: few debug refinements | expand

Checks

Context Check Description
netdev/tree_selection success Clearly marked for net-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/subject_prefix success Link
netdev/cover_letter success Series has a cover letter
netdev/patch_count success Link
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 3 this patch: 3
netdev/cc_maintainers warning 2 maintainers not CCed: yoshfuji@linux-ipv6.org dsahern@kernel.org
netdev/build_clang success Errors and warnings before: 6 this patch: 6
netdev/module_param success Was 0 now: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 3 this patch: 3
netdev/checkpatch warning WARNING: 'developper' may be misspelled - perhaps 'developer'?
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Eric Dumazet June 7, 2022, 5:17 p.m. UTC 
From: Eric Dumazet <edumazet@google.com>

inet_sock_destruct() has four warnings which have been
useful to point to kernel bugs in the past.

However they are potentially a problem because they
could flood the syslog, and really only a developper
can make sense of them.

Keep the checks for CONFIG_DEBUG_NET=y builds,
and issue them once only.

Signed-off-by: Eric Dumazet <edumazet@google.com>
---
 net/ipv4/af_inet.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 93da9f783bec52e4bda6213dc78ef3820e180cc4..5ec85ffe1e13afb333e40819b2a5e60b003d44a7 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -148,10 +148,10 @@  void inet_sock_destruct(struct sock *sk)
 		return;
 	}
 
-	WARN_ON(atomic_read(&sk->sk_rmem_alloc));
-	WARN_ON(refcount_read(&sk->sk_wmem_alloc));
-	WARN_ON(sk->sk_wmem_queued);
-	WARN_ON(sk_forward_alloc_get(sk));
+	DEBUG_NET_WARN_ON_ONCE(atomic_read(&sk->sk_rmem_alloc));
+	DEBUG_NET_WARN_ON_ONCE(refcount_read(&sk->sk_wmem_alloc));
+	DEBUG_NET_WARN_ON_ONCE(sk->sk_wmem_queued);
+	DEBUG_NET_WARN_ON_ONCE(sk_forward_alloc_get(sk));
 
 	kfree(rcu_dereference_protected(inet->inet_opt, 1));
 	dst_release(rcu_dereference_protected(sk->sk_dst_cache, 1));