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authorNikita V. Shirokov <tehnerd@tehnerd.com>2018-04-22 21:16:48 -0700
committerDaniel Borkmann <daniel@iogearbox.net>2018-04-23 11:28:34 +0200
commitaaa6452763cf944da72f16e0736554accb364703 (patch)
treec4e08677572a19959fc98cf0bdf433aa2ae8940c /tools/lib/bpf/btf.c
parent48d7a07ba355c7056e66adcdd35379d12e48252b (diff)
downloadlinux-aaa6452763cf944da72f16e0736554accb364703.tar.gz
bpf: fix virtio-net's length calc for XDP_PASS
In commit 6870de435b90 ("bpf: make virtio compatible w/ bpf_xdp_adjust_tail") i didn't account for vi->hdr_len during new packet's length calculation after bpf_prog_run in receive_mergeable. because of this all packets, if they were passed to the kernel, were truncated by 12 bytes. Fixes:6870de435b90 ("bpf: make virtio compatible w/ bpf_xdp_adjust_tail") Reported-by: David Ahern <dsahern@gmail.com> Signed-off-by: Nikita V. Shirokov <tehnerd@tehnerd.com> Acked-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'tools/lib/bpf/btf.c')
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