On 2013年12月16日 18:09, David Laight wrote:
I was thinking of something like: skb = netdev_alloc_skb(dev, length
+ dev->skb_align, gfp); if (NET_IP_ALIGN && skb && !(ev->driver_flags
& FLAG_HW_IPALIGN)) skb_reserve(skb, NET_IP_ALIGN); It might even be
reasonable to remove the length adjustment - provided that all the
later code uses the skb length. David
Thanks for your advice.
In the way you advised, does the dev->skb_align equal
to NET_IP_ALIGN in the case that HW doesn't supoort
IP alignment?
In other words, dev->skb_align should be initialized to
NET_IP_ALIGN in USBNET, and I can change its value to
0 in AX88179_178A driver, right?
Freddy
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