diff options
| author | Jakub Kicinski <jakub.kicinski@netronome.com> | 2016-06-06 16:16:48 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-06-07 16:27:14 -0700 |
| commit | d47a0f387fe907bdb0430a398850c1cb80eb7def (patch) | |
| tree | 83500f19d807c4ae4eb94650c86e7bdef22b8dc7 /net/sched/cls_u32.c | |
| parent | 1a0f7d2984f3864e64a43714b4a0999b5a27cff5 (diff) | |
net: cls_u32: be more strict about skip-sw flag
Return an error if user requested skip-sw and the underlaying
hardware cannot handle tc offloads (or offloads are disabled).
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/cls_u32.c')
| -rw-r--r-- | net/sched/cls_u32.c | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/net/sched/cls_u32.c b/net/sched/cls_u32.c index b17e090f2fe1..fe05449537a3 100644 --- a/net/sched/cls_u32.c +++ b/net/sched/cls_u32.c @@ -457,20 +457,21 @@ static int u32_replace_hw_hnode(struct tcf_proto *tp, struct tc_to_netdev offload; int err; + if (!tc_should_offload(dev, flags)) + return tc_skip_sw(flags) ? -EINVAL : 0; + offload.type = TC_SETUP_CLSU32; offload.cls_u32 = &u32_offload; - if (tc_should_offload(dev, flags)) { - offload.cls_u32->command = TC_CLSU32_NEW_HNODE; - offload.cls_u32->hnode.divisor = h->divisor; - offload.cls_u32->hnode.handle = h->handle; - offload.cls_u32->hnode.prio = h->prio; + offload.cls_u32->command = TC_CLSU32_NEW_HNODE; + offload.cls_u32->hnode.divisor = h->divisor; + offload.cls_u32->hnode.handle = h->handle; + offload.cls_u32->hnode.prio = h->prio; - err = dev->netdev_ops->ndo_setup_tc(dev, tp->q->handle, - tp->protocol, &offload); - if (tc_skip_sw(flags)) - return err; - } + err = dev->netdev_ops->ndo_setup_tc(dev, tp->q->handle, + tp->protocol, &offload); + if (tc_skip_sw(flags)) + return err; return 0; } |