Currently mlx5 driver caches port GID table length for 2 ports. It is also cached by IB core as port immutable data. When mlx5 representor ports are present, which are usually more than 2, invalid access to port_caps array can happen while validating the GID table length which is only for 2 ports. To avoid this, take help of the IB cores port immutable data by exposing an API to read the port immutable fields. Remove mlx5 driver's internal cache, thereby reduce code and data. Link: https://lore.kernel.org/r/20210203130133.4057329-5-leon@kernel.org Signed-off-by: Parav Pandit <parav@nvidia.com> Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.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 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.
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