58e64a312c
macvlan_hash_lookup() uses list_for_each_entry_rcu() for traversing should either under RCU in fast path or the protection of rtnl_mutex. In the case of holding RTNL, we should add the corresponding lockdep expression to silence the following false-positive warning: ============================= WARNING: suspicious RCU usage 5.7.0-rc1-next-20200416-00003-ga3b8d28bc #1 Not tainted ----------------------------- drivers/net/macvlan.c:126 RCU-list traversed in non-reader section!! Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.