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When no parameters are passed, the usage instructions are presented only when debuginfod-find is not found. This makes sense because with debuginfod none of the positional parameters are needed. However it means that users having debuginfod-find installed will have no chance of reading the usage text without opening the file. Many programs have a '-h' flag to get the usage, so add such a flag. Invoking 'scripts/decode_stacktrace.sh -h' will now show the usage text and exit. Link: https://lkml.kernel.org/r/20240823-decode_stacktrace-find_module-improvements-v2-3-d7a57d35558b@bootlin.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Reviewed-by: Stephen Boyd <swboyd@chromium.org> Cc: Alexis Lothoré (eBPF Foundation) <alexis.lothore@bootlin.com> Cc: Konstantin Khlebnikov <koct9i@gmail.com> Cc: Sasha Levin <sashal@kernel.org> Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.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 reStructuredText 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.