Commit b968e735 authored Apr 17, 2018 by Nikita V. Shirokov Committed by Daniel Borkmann Apr 18, 2018

bpf: make bnxt compatible w/ bpf_xdp_adjust_tail



w/ bpf_xdp_adjust_tail helper xdp's data_end pointer could be changed as
well (only "decrease" of pointer's location is going to be supported).
changing of this pointer will change packet's size.
for bnxt driver we will just calculate packet's length unconditionally

Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Nikita V. Shirokov <tehnerd@tehnerd.com>
Acked-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

parent e5e0a59b

drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -113,10 +113,10 @@ bool bnxt_rx_xdp(struct bnxt bp, struct bnxt_rx_ring_info rxr, u16 cons,
		if (tx_avail != bp->tx_ring_size)
		*event &= ~BNXT_RX_EVENT;

		*len = xdp.data_end - xdp.data;
		if (orig_data != xdp.data) {
		offset = xdp.data - xdp.data_hard_start;
		*data_ptr = xdp.data_hard_start + offset;
		*len = xdp.data_end - xdp.data;
		}
		switch (act) {
		case XDP_PASS: