From: Corentin Labbe <clabbe.montj...@gmail.com> Date: Tue, 31 Jan 2017 10:11:48 +0100
> The stmmac driver run TX completion under NAPI but without checking > the work done by the TX completion function. The current behavior is correct and completely intentional. A driver should _never_ account TX work to the NAPI poll budget. This is because TX liberation is orders of magnitude cheaper than receiving a packet, and such SKB freeing makes more SKBs available for RX processing. Therefore, TX work should never count against the NAPI budget. Please do not fix something which is not broken.
