1 From 79572c98c554dcdb080bca547c871a51716dcdf8 Mon Sep 17 00:00:00 2001
2 From: Sven Auhagen <sven.auhagen@voleatech.de>
3 Date: Sat, 25 Jan 2020 08:07:03 +0000
4 Subject: [PATCH] mvneta driver disallow XDP program on hardware buffer
7 Recently XDP Support was added to the mvneta driver
8 for software buffer management only.
9 It is still possible to attach an XDP program if
10 hardware buffer management is used.
11 It is not doing anything at that point.
13 The patch disallows attaching XDP programs to mvneta
14 if hardware buffer management is used.
16 I am sorry about that. It is my first submission and I am having
17 some troubles with the format of my emails.
23 - Please ignore v3 I accidentally submitted
24 my other patch with git-send-mail and v4 is correct
27 - My mailserver corrupted the patch
28 resubmission with git-send-email
31 - Fixing the patches indentation
33 Signed-off-by: Sven Auhagen <sven.auhagen@voleatech.de>
34 Signed-off-by: David S. Miller <davem@davemloft.net>
36 drivers/net/ethernet/marvell/mvneta.c | 6 ++++++
37 1 file changed, 6 insertions(+)
39 --- a/drivers/net/ethernet/marvell/mvneta.c
40 +++ b/drivers/net/ethernet/marvell/mvneta.c
41 @@ -4270,6 +4270,12 @@ static int mvneta_xdp_setup(struct net_d
46 + NL_SET_ERR_MSG_MOD(extack,
47 + "Hardware Buffer Management not supported on XDP");
51 need_update = !!pp->xdp_prog != !!prog;
52 if (running && need_update)