From: Weilong Chen <[email protected]> Date: Fri, 28 Aug 2015 11:35:40 +0800In my test, @to has a fraglist, but skb_tailroom(to) is not 0! The test is about tipc, the function tipc_buf_append will merge 3 skbs to one: packet 1: len = 1420 skb_tailroom = 190 packet 2: len = 1420 packet 2 will be add to 1' fraglist, but not update skb_tailroomThis operation is illegal. Once there are frags, tailroom is not permitted. .
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