On Mon, Feb 25, 2019 at 07:27:43PM +0800, Xin Long wrote: > sctp_csum_check() is called by sctp_s/dnat_handler() where it calls > skb_make_writable() to ensure sctphdr to be linearized. > > So there's no need to get sctphdr by calling skb_header_pointer() > in sctp_csum_check(). Applied, thanks.