On Wed, May 03, 2017 at 03:02:32PM +0800, Ding Tianhong wrote: > The patch 327868212381 (make skb_copy_datagram_msg() et.al. preserve > ->msg_iter on error) will revert the iov buffer if copy to iter > failed, but it didn't copy any datagram if the skb_checksum_complete > error, so no need to revert any data at this place.
See a6a5993243550b09f620941dea741b7421fdf79c in mainline...