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[ Upstream commitc0c2c0dad6] When PROVE_RAW_LOCK_NESTING=y many of the selftests FAILED because HARDIRQ context is out-of-bounds for spinlocks. Instead make the default hardware context the threaded hardirq context, which preserves the old locking rules. The wait-type specific locking selftests will have a non-threaded HARDIRQ variant. Fixes:de8f5e4f2d("lockdep: Introduce wait-type checks") Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Tested-by: Joerg Roedel <jroedel@suse.de> Link: https://lore.kernel.org/r/20210617190313.322096283@infradead.org Signed-off-by: Sasha Levin <sashal@kernel.org>
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.