From: Jia-Ju Bai
Date: Sun, 2 Aug 2020 17:16:11 +0800
> In do_tx(), skb->data is mapped to streaming DMA on line :
> paddr = dma_map_single(...,skb->data,DMA_TO_DEVICE);
>
> Then skb->data is accessed on line 1153:
> (skb->data[3] & 0xf)
>
> This access may cause data inconsistency bet
In do_tx(), skb->data is mapped to streaming DMA on line :
paddr = dma_map_single(...,skb->data,DMA_TO_DEVICE);
Then skb->data is accessed on line 1153:
(skb->data[3] & 0xf)
This access may cause data inconsistency between CPU cache and hardware.
To fix this problem, skb->data[3] is assi
