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Sparse reported this: | kernel/rcu/tree_plugin.h:814:9: warning: incorrect type in argument 1 (different modifiers) | kernel/rcu/tree_plugin.h:814:9: expected struct lockdep_map const *lock | kernel/rcu/tree_plugin.h:814:9: got struct lockdep_map [noderef] *<noident> This is caused by using vanilla lockdep annotations on rcu_node::lock, and that requires accessing ->lock of rcu_node directly. However we need to keep rcu_node::lock __private to avoid breaking its extra ordering guarantee. And we have a dedicated lockdep annotation for rcu_node::lock, so use it. Signed-off-by: Boqun Feng <boqun.feng@gmail.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.