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(parent: ba150a1) | patch
xsk: Return error code if force_zc is set
authorZhang Changzhong <zhangchangzhong@huawei.com>
Fri, 4 Dec 2020 10:21:16 +0000 (18:21 +0800)
committerDaniel Borkmann <daniel@iogearbox.net>
Fri, 4 Dec 2020 15:48:31 +0000 (16:48 +0100)
commit1a0fa789c36fa7bcfde4de39ec898060a721a2a5
tree5db836caee97a915dd8b242c149b59f7b0d2ef40tree | snapshot
parentba150a141ca2b514c7c2db6164a7e655864747c0commit | diff
xsk: Return error code if force_zc is set

If force_zc is set, we should exit out with an error, not fall back to
copy mode.

Fixes: c6f230b5ad52 ("xsk: Enable sharing of dma mappings")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Magnus Karlsson <magnus.karlsson@intel.com>
Link: https://lore.kernel.org/bpf/1607077277-41995-1-git-send-email-zhangchangzhong@huawei.com
net/xdp/xsk_buff_pool.c diff | blob | history
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