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If > skb allocation fails, keep on pulling packets out of the Rx DMA queue: we > shouldn't break the polling immediately and thus falsely indicate to the > octep_napi_poll() that the Rx pressure is going down. As there is no > associated skb in this case, don't process the packets and don't push them > up the network stack - they are skipped. > > Helper function is implemented to unmmap/flush all the fragment buffers > used by the dropped packet. 'alloc_failures' counter is incremented to > mark the skb allocation error in driver statistics. > > Found by Linux Verification Center (linuxtesting.org) with SVACE. > > Fixes: 37d79d059606 ("octeon_ep: add Tx/Rx processing and interrupt support") > Suggested-by: Paolo Abeni > Signed-off-by: Aleksandr Mishin > --- Reviewed-by: Jacob Keller