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(parent: 291aeb2) | patch
tuntap: simplify error handling in tun_build_skb()
authorJason Wang <jasowang@redhat.com>
Wed, 12 Sep 2018 03:17:02 +0000 (11:17 +0800)
committerDavid S. Miller <davem@davemloft.net>
Thu, 13 Sep 2018 16:25:40 +0000 (09:25 -0700)
commitf7053b6ccb65a36fdfed6ad92b808464839f0eb6
tree3e8a43962d210ca2d9499f12dc2dc693ade1d512tree
parent291aeb2b1dba0d0296673d994200824a7185585ecommit | diff
tuntap: simplify error handling in tun_build_skb()

There's no need to duplicate page get logic in each action. So this
patch tries to get page and calculate the offset before processing XDP
actions (except for XDP_DROP), and undo them when meet errors (we
don't care the performance on errors). This will be used for factoring
out XDP logic.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/tun.c diff | blob | history
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