netdev - [PATCH net-next 0/8] net: few debug refinements

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Date:   Tue,  7 Jun 2022 10:17:24 -0700
From:   Eric Dumazet <eric.dumazet@...il.com>
To:     "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>
Cc:     netdev <netdev@...r.kernel.org>,
        Eric Dumazet <edumazet@...gle.com>,
        Eric Dumazet <eric.dumazet@...il.com>
Subject: [PATCH net-next 0/8] net: few debug refinements

From: Eric Dumazet <edumazet@...gle.com>

Adopt DEBUG_NET_WARN_ON_ONCE() in some places where it makes sense.

Add checks in napi_consume_skb() and __napi_alloc_skb()

Make sure napi_get_frags() does not use page fragments
for skb->head.

Eric Dumazet (8):
  net: use DEBUG_NET_WARN_ON_ONCE() in __release_sock()
  net: use DEBUG_NET_WARN_ON_ONCE() in dev_loopback_xmit()
  net: use DEBUG_NET_WARN_ON_ONCE() in inet_sock_destruct()
  net: use DEBUG_NET_WARN_ON_ONCE() in sk_stream_kill_queues()
  af_unix: use DEBUG_NET_WARN_ON_ONCE()
  net: use DEBUG_NET_WARN_ON_ONCE() in skb_release_head_state()
  net: add debug checks in napi_consume_skb and __napi_alloc_skb()
  net: add napi_get_frags_check() helper

 net/core/dev.c     | 20 +++++++++++++++++++-
 net/core/skbuff.c  |  5 +++--
 net/core/sock.c    |  2 +-
 net/core/stream.c  |  6 +++---
 net/ipv4/af_inet.c |  8 ++++----
 net/unix/af_unix.c |  8 ++++----
 6 files changed, 34 insertions(+), 15 deletions(-)

-- 
2.36.1.255.ge46751e96f-goog