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[ Upstream commitd64b1ee12a] This code is trying to ensure that only the flags specified in the list are allowed. The problem is that ucmd->rx_hash_fields_mask is a u64 and the flags are an enum which is treated as a u32 in this context. That means the test doesn't check whether the highest 32 bits are zero. Fixes:4d02ebd9bb("IB/mlx4: Fix RSS hash fields restrictions") Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> Link: https://lore.kernel.org/r/233ed975-982d-422a-b498-410f71d8a101@moroto.mountain Signed-off-by: Leon Romanovsky <leon@kernel.org> 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.