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xsk: recycle buffer in case Rx queue was full
[ Upstream commit2690098931
] Add missing xsk_buff_free() call when __xsk_rcv_zc() failed to produce descriptor to XSK Rx queue. Fixes:24ea50127e
("xsk: support mbuf on ZC RX") Acked-by: Magnus Karlsson <magnus.karlsson@intel.com> Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com> Link: https://lore.kernel.org/r/20240124191602.566724-2-maciej.fijalkowski@intel.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
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parent
bf47ffc1a5
commit
cce7136645
1 changed files with 8 additions and 4 deletions
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@ -166,8 +166,10 @@ static int xsk_rcv_zc(struct xdp_sock *xs, struct xdp_buff *xdp, u32 len)
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contd = XDP_PKT_CONTD;
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err = __xsk_rcv_zc(xs, xskb, len, contd);
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if (err || likely(!frags))
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goto out;
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if (err)
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goto err;
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if (likely(!frags))
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return 0;
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xskb_list = &xskb->pool->xskb_list;
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list_for_each_entry_safe(pos, tmp, xskb_list, xskb_list_node) {
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@ -176,11 +178,13 @@ static int xsk_rcv_zc(struct xdp_sock *xs, struct xdp_buff *xdp, u32 len)
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len = pos->xdp.data_end - pos->xdp.data;
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err = __xsk_rcv_zc(xs, pos, len, contd);
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if (err)
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return err;
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goto err;
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list_del(&pos->xskb_list_node);
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}
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out:
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return 0;
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err:
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xsk_buff_free(xdp);
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return err;
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}
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