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Huacai Chen
afe0d84385
If there is no valid cache info detected (may happen in virtual machine) for pci_dfl_cache_line_size, kernel shouldn't panic. Because in the PCI core it will be evaluated to (L1_CACHE_BYTES >> 2). Cc: <stable@vger.kernel.org> Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
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.