The helper function xdp_set_data_meta_invalid() must be called after setting xdp->data as it depends on it. The bug was introduced in the cited patch below, and cause the kernel to crash when using BPF helper bpf_xdp_adjust_head() on mlx5 driver. Fixes: 39d6443c8daf ("mlx5, xsk: Migrate to new MEM_TYPE_XSK_BUFF_POOL") Reported-by: David Ahern <dsahern@kernel.org> Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Tested-by: David Ahern <dsahern@gmail.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.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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