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xsk: relax UMEM headroom alignment

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This patch removes the 64B alignment of the UMEM headroom. There is
really no reason for it, and having a headroom less than 64B should be
valid.

Fixes: c0c77d8fb7 ("xsk: add user memory registration support sockopt")
Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
Björn Töpel 2019-09-18 09:57:39 +02:00 • committed by Daniel Borkmann
parent a0791f0df7
commit 733ef7f056
1 changed files with 0 additions and 2 deletions
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2
net/xdp/xdp_umem.c
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@ -383,8 +383,6 @@ static int xdp_umem_reg(struct xdp_umem *umem, struct xdp_umem_reg *mr)
return -EINVAL;
}
headroom = ALIGN(headroom, 64);
size_chk = chunk_size - headroom - XDP_PACKET_HEADROOM;
if (size_chk < 0)
return -EINVAL;