Michael S. Tsirkin 0a1ec07a67
net: skb_copy_datagram_const_iovec() ...
There's an skb_copy_datagram_iovec() to copy out of a paged skb,
but it modifies the iovec, and does not support starting
at an offset in the destination. We want both in tun.c, so let's
add the function.
It's a carbon copy of skb_copy_datagram_iovec() with enough changes to
be annoying.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com >
Signed-off-by: David S. Miller <davem@davemloft.net >
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0a1ec07a67