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3322d53fda
sp805_wdt::load_val is of type unsigned int. When the interrupt is inactive wdt_timeleft adds one to the value, and then adds that to the value used to calculate the time remaining. Unfortunately it's not unlikely that load_val contains LOAD_MAX, which is 0xFFFFFFFF and wraps to zero when one is added to it, resulting in the time left being understated by about 21.7s. Fix this by ensuring the addition happens as 64-bit. Signed-off-by: Mike Crowe <mac@mcrowe.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20241203095744.3001795-1-mac@mcrowe.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.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 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.