From: Alexander Kochetkov
Date: Tue, 19 Dec 2017 14:07:04 +0300
> arc_emac_rx() has some issues found by code review.
>
> In case netdev_alloc_skb_ip_align() or dma_map_single() failure
> rx fifo entry will not be returned to EMAC.
>
> In case dma_map_single() failure previously allocated skb b
arc_emac_rx() has some issues found by code review.
In case netdev_alloc_skb_ip_align() or dma_map_single() failure
rx fifo entry will not be returned to EMAC.
In case dma_map_single() failure previously allocated skb became
lost to driver. At the same time address of newly allocated skb
will not
