Re: [Patch net] erspan: fix version 1 check in gre_parse_header()

2020-12-28 Thread David Miller
From: Cong Wang Date: Sat, 26 Dec 2020 15:44:53 -0800 > From: Cong Wang > > Both version 0 and version 1 use ETH_P_ERSPAN, but version 0 does not > have an erspan header. So the check in gre_parse_header() is wrong, > we have to distinguish version 1 from version 0. > > We can just check the g

[Patch net] erspan: fix version 1 check in gre_parse_header()

2020-12-26 Thread Cong Wang
From: Cong Wang Both version 0 and version 1 use ETH_P_ERSPAN, but version 0 does not have an erspan header. So the check in gre_parse_header() is wrong, we have to distinguish version 1 from version 0. We can just check the gre header length like is_erspan_type1(). Fixes: cb73ee40b1b3 ("net: i