Hello Daniel Borkmann,
This is a semi-automatic email about new static checker warnings.
The patch 604326b41a6f: "bpf, sockmap: convert to generic sk_msg
interface" from Oct 13, 2018, leads to the following Smatch complaint:
net/core/skmsg.c:792 sk_psock_write_space()
error: we previously assumed 'psock' could be null (see line 790)
net/core/skmsg.c
789 psock = sk_psock(sk);
790 if (likely(psock && sk_psock_test_state(psock, SK_PSOCK_TX_ENABLED)))
^^^^^
Check for NULL
791 schedule_work(&psock->work);
792 write_space = psock->saved_write_space;
^^^^^^^^^^^^^^^^^^^^^^^^
793 rcu_read_unlock();
794 write_space(sk);
^^^^^^^^^^^^^^
The warning is on the wrong line. The dereference is really here.
regards,
dan carpenter
