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The patch3278682123(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. v2: Sabrina notice that return -EFAULT when checksum error is not correct here, it would confuse the caller about the return value, so fix it. Fixes:3278682123("make skb_copy_datagram_msg() et.al. preserve->msg_iter on error") Cc: stable@vger.kernel.org # v4.11 Signed-off-by: Ding Tianhong <dingtianhong@huawei.com> Acked-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.