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W=1 builds warn that the data written to 'tc_name' is truncated for theoretical strings such as "channel-2147483646". Solve this problem by replacing snprintf() with scnprintf() so that the return value corresponds to what was actually written. In practice, the largest string that will be written is "channel-8", and the return value is not actually evaluated. Instead, this patch ultimately removes the warning without unnecessarily increasing the size of 'tc_name' from 10 bytes. Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202412221136.0S4kRoCC-lkp@intel.com/ Signed-off-by: Jeff LaBundy <jeff@labundy.com> Link: https://lore.kernel.org/r/Z3rV8GTHxLyjBQ5I@nixie71 Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.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 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.