netdev - [PATCH net 0/5] net: avoid KCSAN splats

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Message-Id: <20191024054452.81661-1-edumazet@google.com>
Date:   Wed, 23 Oct 2019 22:44:47 -0700
From:   Eric Dumazet <edumazet@...gle.com>
To:     "David S . Miller" <davem@...emloft.net>
Cc:     netdev <netdev@...r.kernel.org>,
        Eric Dumazet <edumazet@...gle.com>,
        Eric Dumazet <eric.dumazet@...il.com>
Subject: [PATCH net 0/5] net: avoid KCSAN splats

Often times we use skb_queue_empty() without holding a lock,
meaning that other cpus (or interrupt) can change the queue
under us. This is fine, but we need to properly annotate
the lockless intent to make sure the compiler wont over
optimize things.

Eric Dumazet (5):
  net: add skb_queue_empty_lockless()
  udp: use skb_queue_empty_lockless()
  net: use skb_queue_empty_lockless() in poll() handlers
  net: use skb_queue_empty_lockless() in busy poll contexts
  net: add READ_ONCE() annotation in __skb_wait_for_more_packets()

 drivers/crypto/chelsio/chtls/chtls_io.c |  2 +-
 drivers/isdn/capi/capi.c                |  2 +-
 drivers/nvme/host/tcp.c                 |  2 +-
 include/linux/skbuff.h                  | 33 ++++++++++++++++++-------
 net/atm/common.c                        |  2 +-
 net/bluetooth/af_bluetooth.c            |  4 +--
 net/caif/caif_socket.c                  |  2 +-
 net/core/datagram.c                     |  8 +++---
 net/core/sock.c                         |  2 +-
 net/decnet/af_decnet.c                  |  2 +-
 net/ipv4/tcp.c                          |  4 +--
 net/ipv4/udp.c                          |  8 +++---
 net/nfc/llcp_sock.c                     |  4 +--
 net/phonet/socket.c                     |  4 +--
 net/sctp/socket.c                       |  6 ++---
 net/tipc/socket.c                       |  4 +--
 net/unix/af_unix.c                      |  6 ++---
 net/vmw_vsock/af_vsock.c                |  2 +-
 18 files changed, 56 insertions(+), 41 deletions(-)

-- 
2.23.0.866.gb869b98d4c-goog