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[ Upstream commit 8df0f002827e18632dcd986f7546c1abf1953a6f ] The expression PCC_NUM_RETRIES * pcc_chan->latency is currently being evaluated using 32-bit arithmetic. Since a value of type 'u64' is used to store the eventual result, and this result is later sent to the function usecs_to_jiffies with input parameter unsigned int, the current data type is too wide to store the value of ctx->usecs_lat. Change the data type of "usecs_lat" to a more suitable (narrower) type. Found by Linux Verification Center (linuxtesting.org) with SVACE. Signed-off-by: Andrey Vatoropin <a.vatoropin@crpt.ru> Link: https://lore.kernel.org/r/20250204095400.95013-1-a.vatoropin@crpt.ru Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Sasha Levin <sashal@kernel.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 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.