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4f74a3b307
EPROBE_DEFER error returns are not really critical, since they cancel the probe process, but the kernel will return later and retry. However, depending on the probe order, this might issue quite some verbatim and scary, though pointless messages: [ 2.388731] 300b000.pinctrl: pin-224 (5000000.serial) status -517 [ 2.397321] 300b000.pinctrl: could not request pin 224 (PH0) from group PH0 on device 300b000.pinctrl Replace dev_err() with dev_err_probe(), which not only drops the priority of the message from error to debug, but also puts some text into debugfs' devices_deferred file, for later reference. Signed-off-by: Andre Przywara <andre.przywara@arm.com> Link: https://lore.kernel.org/r/20240305143859.2449147-1-andre.przywara@arm.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org> |
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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.