diff options
| author | Willem de Bruijn <willemb@google.com> | 2017-01-07 17:06:36 -0500 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-01-08 20:58:52 -0500 |
| commit | a5135bcfba7345031df45e02cd150a45add47cf8 (patch) | |
| tree | 11e201bd54742af84404e74007a9408f14b5aa0f /net/sched | |
| parent | e7246e122aaa99ebbb8ad7da80f35a20577bd8af (diff) | |
| download | linux-a5135bcfba7345031df45e02cd150a45add47cf8.tar.bz2 | |
net-tc: convert tc_verd to integer bitfields
Extract the remaining two fields from tc_verd and remove the __u16
completely. TC_AT and TC_FROM are converted to equivalent two-bit
integer fields tc_at and tc_from. Where possible, use existing
helper skb_at_tc_ingress when reading tc_at. Introduce helper
skb_reset_tc to clear fields.
Not documenting tc_from and tc_at, because they will be replaced
with single bit fields in follow-on patches.
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched')
| -rw-r--r-- | net/sched/act_ife.c | 7 | ||||
| -rw-r--r-- | net/sched/act_mirred.c | 9 | ||||
| -rw-r--r-- | net/sched/sch_netem.c | 2 |
3 files changed, 8 insertions, 10 deletions
diff --git a/net/sched/act_ife.c b/net/sched/act_ife.c index 80b848d3f096..921fb20eaa7c 100644 --- a/net/sched/act_ife.c +++ b/net/sched/act_ife.c @@ -736,12 +736,11 @@ static int tcf_ife_encode(struct sk_buff *skb, const struct tc_action *a, u16 metalen = ife_get_sz(skb, ife); int hdrm = metalen + skb->dev->hard_header_len + IFE_METAHDRLEN; unsigned int skboff = skb->dev->hard_header_len; - u32 at = G_TC_AT(skb->tc_verd); int new_len = skb->len + hdrm; bool exceed_mtu = false; int err; - if (at & AT_EGRESS) { + if (!skb_at_tc_ingress(skb)) { if (new_len > skb->dev->mtu) exceed_mtu = true; } @@ -773,7 +772,7 @@ static int tcf_ife_encode(struct sk_buff *skb, const struct tc_action *a, return TC_ACT_SHOT; } - if (!(at & AT_EGRESS)) + if (skb_at_tc_ingress(skb)) skb_push(skb, skb->dev->hard_header_len); iethh = (struct ethhdr *)skb->data; @@ -816,7 +815,7 @@ static int tcf_ife_encode(struct sk_buff *skb, const struct tc_action *a, ether_addr_copy(oethh->h_dest, iethh->h_dest); oethh->h_proto = htons(ife->eth_type); - if (!(at & AT_EGRESS)) + if (skb_at_tc_ingress(skb)) skb_pull(skb, skb->dev->hard_header_len); spin_unlock(&ife->tcf_lock); diff --git a/net/sched/act_mirred.c b/net/sched/act_mirred.c index 2d9fa6e0a1b4..8543279bba49 100644 --- a/net/sched/act_mirred.c +++ b/net/sched/act_mirred.c @@ -170,7 +170,6 @@ static int tcf_mirred(struct sk_buff *skb, const struct tc_action *a, int retval, err = 0; int m_eaction; int mac_len; - u32 at; tcf_lastuse_update(&m->tcf_tm); bstats_cpu_update(this_cpu_ptr(m->common.cpu_bstats), skb); @@ -191,7 +190,6 @@ static int tcf_mirred(struct sk_buff *skb, const struct tc_action *a, goto out; } - at = G_TC_AT(skb->tc_verd); skb2 = skb_clone(skb, GFP_ATOMIC); if (!skb2) goto out; @@ -200,8 +198,9 @@ static int tcf_mirred(struct sk_buff *skb, const struct tc_action *a, * and devices expect a mac header on xmit, then mac push/pull is * needed. */ - if (at != tcf_mirred_act_direction(m_eaction) && m_mac_header_xmit) { - if (at & AT_EGRESS) { + if (skb->tc_at != tcf_mirred_act_direction(m_eaction) && + m_mac_header_xmit) { + if (!skb_at_tc_ingress(skb)) { /* caught at egress, act ingress: pull mac */ mac_len = skb_network_header(skb) - skb_mac_header(skb); skb_pull_rcsum(skb2, mac_len); @@ -213,7 +212,7 @@ static int tcf_mirred(struct sk_buff *skb, const struct tc_action *a, /* mirror is always swallowed */ if (tcf_mirred_is_act_redirect(m_eaction)) - skb2->tc_verd = SET_TC_FROM(skb2->tc_verd, at); + skb2->tc_from = skb2->tc_at; skb2->skb_iif = skb->dev->ifindex; skb2->dev = dev; diff --git a/net/sched/sch_netem.c b/net/sched/sch_netem.c index bcfadfdea8e0..bb5c638b6852 100644 --- a/net/sched/sch_netem.c +++ b/net/sched/sch_netem.c @@ -626,7 +626,7 @@ deliver: * If it's at ingress let's pretend the delay is * from the network (tstamp will be updated). */ - if (G_TC_FROM(skb->tc_verd) & AT_INGRESS) + if (skb->tc_from & AT_INGRESS) skb->tstamp = 0; #endif |