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author | Björn Töpel <bjorn.topel@intel.com> | 2018-09-07 10:18:48 +0200 |
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committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2018-09-25 13:16:19 -0700 |
commit | 3ab52af58fa481324bb7c839a2187c54c4af912b (patch) | |
tree | 23c7f5927c27ba3bbaabc241bf9b2ddd4d546a17 /include/net/xdp_sock.h | |
parent | 411dc16ff1775517ec91cdb64be7ee0daca44e22 (diff) | |
download | linux-3ab52af58fa481324bb7c839a2187c54c4af912b.tar.bz2 |
i40e: disallow changing the number of descriptors when AF_XDP is on
When an AF_XDP UMEM is attached to any of the Rx rings, we disallow a
user to change the number of descriptors via e.g. "ethtool -G IFNAME".
Otherwise, the size of the stash/reuse queue can grow unbounded, which
would result in OOM or leaking userspace buffers.
Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'include/net/xdp_sock.h')
0 files changed, 0 insertions, 0 deletions