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08b2c3706d
This patch replaces all the s390 debug feature calls with debug level by dynamic debug calls pr_debug. These calls are much more flexible and each single invocation can get enabled/disabled at runtime wheres the s390 debug feature debug calls have only one knob - enable or disable all in one bunch. The benefit is especially significant with high frequency called functions like the AP bus scan. In most debugging scenarios you don't want and need them, but sometimes it is crucial to know exactly when and how long the AP bus scan took. Signed-off-by: Harald Freudenberger <freude@linux.ibm.com> Reviewed-by: Holger Dengler <dengler@linux.ibm.com> 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.