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f0c7cf13a3
In case of udelay CIF_IGNORE_IRQ is set. This leads to an unbalanced call of TRACE_IRQS_OFF and TRACE_IRQS_ON. That is: from lockdep's point of view TRACE_IRQS_ON is called one time too often. This doesn't fix any real bug, just makes the calls balanced. Signed-off-by: Heiko Carstens <hca@linux.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.
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.