tap: make set_offload a nop after netdev cleanup
virtio-net expects set_offload to succeed after peer cleanup. Since we don't have an open fd anymore, make it so. Fixes warning about the failure of offload setting. Reported-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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@ -269,8 +269,11 @@ void tap_set_offload(VLANClientState *nc, int csum, int tso4,
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int tso6, int ecn, int ufo)
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{
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TAPState *s = DO_UPCAST(TAPState, nc, nc);
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if (s->fd < 0) {
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return;
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}
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return tap_fd_set_offload(s->fd, csum, tso4, tso6, ecn, ufo);
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tap_fd_set_offload(s->fd, csum, tso4, tso6, ecn, ufo);
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}
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static void tap_cleanup(VLANClientState *nc)
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@ -290,6 +293,7 @@ static void tap_cleanup(VLANClientState *nc)
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tap_read_poll(s, 0);
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tap_write_poll(s, 0);
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close(s->fd);
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s->fd = -1;
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}
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static void tap_poll(VLANClientState *nc, bool enable)
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