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Message-Id: <1429644476-8914-3-git-send-email-ast@plumgrid.com>
Date: Tue, 21 Apr 2015 12:27:55 -0700
From: Alexei Starovoitov <ast@...mgrid.com>
To: "David S. Miller" <davem@...emloft.net>
Cc: Eric Dumazet <edumazet@...gle.com>,
Jamal Hadi Salim <jhs@...atatu.com>,
John Fastabend <john.r.fastabend@...el.com>,
netdev@...r.kernel.org
Subject: [RFC 2/3] tc: deprecate TC_ACT_QUEUED
TC_ACT_QUEUED was always an alias of TC_ACT_STOLEN.
Get rid of redundant checks in all qdiscs.
Instead do it once.
Signed-off-by: Alexei Starovoitov <ast@...mgrid.com>
---
include/uapi/linux/pkt_cls.h | 2 +-
net/sched/sch_api.c | 2 ++
net/sched/sch_atm.c | 1 -
net/sched/sch_cbq.c | 1 -
net/sched/sch_choke.c | 1 -
net/sched/sch_drr.c | 1 -
net/sched/sch_dsmark.c | 1 -
net/sched/sch_fq_codel.c | 1 -
net/sched/sch_hfsc.c | 1 -
net/sched/sch_htb.c | 1 -
net/sched/sch_ingress.c | 1 -
net/sched/sch_multiq.c | 1 -
net/sched/sch_prio.c | 1 -
net/sched/sch_qfq.c | 1 -
net/sched/sch_sfb.c | 1 -
net/sched/sch_sfq.c | 1 -
16 files changed, 3 insertions(+), 15 deletions(-)
diff --git a/include/uapi/linux/pkt_cls.h b/include/uapi/linux/pkt_cls.h
index bf08e76bf505..208e5ed5256c 100644
--- a/include/uapi/linux/pkt_cls.h
+++ b/include/uapi/linux/pkt_cls.h
@@ -102,7 +102,7 @@ enum {
#define TC_ACT_SHOT 2
#define TC_ACT_PIPE 3
#define TC_ACT_STOLEN 4
-#define TC_ACT_QUEUED 5
+#define TC_ACT_QUEUED 5 /* deprecated. same as TC_ACT_STOLEN */
#define TC_ACT_REPEAT 6
#define TC_ACT_JUMP 0x10000000
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index ad9eed70bc8f..f7950327bb22 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -1820,6 +1820,8 @@ int tc_classify_compat(struct sk_buff *skb, const struct tcf_proto *tp,
#ifdef CONFIG_NET_CLS_ACT
if (err != TC_ACT_RECLASSIFY && skb->tc_verd)
skb->tc_verd = SET_TC_VERD(skb->tc_verd, 0);
+ if (err == TC_ACT_QUEUED)
+ return TC_ACT_STOLEN;
#endif
return err;
}
diff --git a/net/sched/sch_atm.c b/net/sched/sch_atm.c
index e3e2cc5fd068..7ef0bf4bdce6 100644
--- a/net/sched/sch_atm.c
+++ b/net/sched/sch_atm.c
@@ -396,7 +396,6 @@ done:
/*@@@ looks good ... but it's not supposed to work :-) */
#ifdef CONFIG_NET_CLS_ACT
switch (result) {
- case TC_ACT_QUEUED:
case TC_ACT_STOLEN:
kfree_skb(skb);
return NET_XMIT_SUCCESS | __NET_XMIT_STOLEN;
diff --git a/net/sched/sch_cbq.c b/net/sched/sch_cbq.c
index beeb75f80fdb..eca4725e3273 100644
--- a/net/sched/sch_cbq.c
+++ b/net/sched/sch_cbq.c
@@ -258,7 +258,6 @@ cbq_classify(struct sk_buff *skb, struct Qdisc *sch, int *qerr)
goto fallback;
#ifdef CONFIG_NET_CLS_ACT
switch (result) {
- case TC_ACT_QUEUED:
case TC_ACT_STOLEN:
*qerr = NET_XMIT_SUCCESS | __NET_XMIT_STOLEN;
case TC_ACT_SHOT:
diff --git a/net/sched/sch_choke.c b/net/sched/sch_choke.c
index c009eb9045ce..a3bc7cf151d3 100644
--- a/net/sched/sch_choke.c
+++ b/net/sched/sch_choke.c
@@ -212,7 +212,6 @@ static bool choke_classify(struct sk_buff *skb,
#ifdef CONFIG_NET_CLS_ACT
switch (result) {
case TC_ACT_STOLEN:
- case TC_ACT_QUEUED:
*qerr = NET_XMIT_SUCCESS | __NET_XMIT_STOLEN;
case TC_ACT_SHOT:
return false;
diff --git a/net/sched/sch_drr.c b/net/sched/sch_drr.c
index 338706092c27..1051c5d4e85b 100644
--- a/net/sched/sch_drr.c
+++ b/net/sched/sch_drr.c
@@ -335,7 +335,6 @@ static struct drr_class *drr_classify(struct sk_buff *skb, struct Qdisc *sch,
if (result >= 0) {
#ifdef CONFIG_NET_CLS_ACT
switch (result) {
- case TC_ACT_QUEUED:
case TC_ACT_STOLEN:
*qerr = NET_XMIT_SUCCESS | __NET_XMIT_STOLEN;
case TC_ACT_SHOT:
diff --git a/net/sched/sch_dsmark.c b/net/sched/sch_dsmark.c
index 66700a6116aa..ce9d4123cbbe 100644
--- a/net/sched/sch_dsmark.c
+++ b/net/sched/sch_dsmark.c
@@ -236,7 +236,6 @@ static int dsmark_enqueue(struct sk_buff *skb, struct Qdisc *sch)
switch (result) {
#ifdef CONFIG_NET_CLS_ACT
- case TC_ACT_QUEUED:
case TC_ACT_STOLEN:
kfree_skb(skb);
return NET_XMIT_SUCCESS | __NET_XMIT_STOLEN;
diff --git a/net/sched/sch_fq_codel.c b/net/sched/sch_fq_codel.c
index 1e52decb7b59..4d00ece3243d 100644
--- a/net/sched/sch_fq_codel.c
+++ b/net/sched/sch_fq_codel.c
@@ -104,7 +104,6 @@ static unsigned int fq_codel_classify(struct sk_buff *skb, struct Qdisc *sch,
#ifdef CONFIG_NET_CLS_ACT
switch (result) {
case TC_ACT_STOLEN:
- case TC_ACT_QUEUED:
*qerr = NET_XMIT_SUCCESS | __NET_XMIT_STOLEN;
case TC_ACT_SHOT:
return 0;
diff --git a/net/sched/sch_hfsc.c b/net/sched/sch_hfsc.c
index e6c7416d0332..3438f9b4fd8b 100644
--- a/net/sched/sch_hfsc.c
+++ b/net/sched/sch_hfsc.c
@@ -1168,7 +1168,6 @@ hfsc_classify(struct sk_buff *skb, struct Qdisc *sch, int *qerr)
while (tcf && (result = tc_classify(skb, tcf, &res)) >= 0) {
#ifdef CONFIG_NET_CLS_ACT
switch (result) {
- case TC_ACT_QUEUED:
case TC_ACT_STOLEN:
*qerr = NET_XMIT_SUCCESS | __NET_XMIT_STOLEN;
case TC_ACT_SHOT:
diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c
index f1acb0f60dc3..32c1f081bed9 100644
--- a/net/sched/sch_htb.c
+++ b/net/sched/sch_htb.c
@@ -232,7 +232,6 @@ static struct htb_class *htb_classify(struct sk_buff *skb, struct Qdisc *sch,
while (tcf && (result = tc_classify(skb, tcf, &res)) >= 0) {
#ifdef CONFIG_NET_CLS_ACT
switch (result) {
- case TC_ACT_QUEUED:
case TC_ACT_STOLEN:
*qerr = NET_XMIT_SUCCESS | __NET_XMIT_STOLEN;
case TC_ACT_SHOT:
diff --git a/net/sched/sch_ingress.c b/net/sched/sch_ingress.c
index e68f4a5dbeba..63cbd1e066bd 100644
--- a/net/sched/sch_ingress.c
+++ b/net/sched/sch_ingress.c
@@ -69,7 +69,6 @@ static int ingress_enqueue(struct sk_buff *skb, struct Qdisc *sch)
case TC_ACT_SHOT:
qdisc_qstats_drop(sch);
case TC_ACT_STOLEN:
- case TC_ACT_QUEUED:
result = NET_XMIT_DROP;
kfree_skb(skb);
break;
diff --git a/net/sched/sch_multiq.c b/net/sched/sch_multiq.c
index 42dd218871e0..dc2a708a772c 100644
--- a/net/sched/sch_multiq.c
+++ b/net/sched/sch_multiq.c
@@ -50,7 +50,6 @@ multiq_classify(struct sk_buff *skb, struct Qdisc *sch, int *qerr)
#ifdef CONFIG_NET_CLS_ACT
switch (err) {
case TC_ACT_STOLEN:
- case TC_ACT_QUEUED:
*qerr = NET_XMIT_SUCCESS | __NET_XMIT_STOLEN;
case TC_ACT_SHOT:
return NULL;
diff --git a/net/sched/sch_prio.c b/net/sched/sch_prio.c
index 8e5cd34aaa74..de4825a9d0aa 100644
--- a/net/sched/sch_prio.c
+++ b/net/sched/sch_prio.c
@@ -46,7 +46,6 @@ prio_classify(struct sk_buff *skb, struct Qdisc *sch, int *qerr)
#ifdef CONFIG_NET_CLS_ACT
switch (err) {
case TC_ACT_STOLEN:
- case TC_ACT_QUEUED:
*qerr = NET_XMIT_SUCCESS | __NET_XMIT_STOLEN;
case TC_ACT_SHOT:
return NULL;
diff --git a/net/sched/sch_qfq.c b/net/sched/sch_qfq.c
index 3ec7e88a43ca..9d1e43ea0ccb 100644
--- a/net/sched/sch_qfq.c
+++ b/net/sched/sch_qfq.c
@@ -723,7 +723,6 @@ static struct qfq_class *qfq_classify(struct sk_buff *skb, struct Qdisc *sch,
if (result >= 0) {
#ifdef CONFIG_NET_CLS_ACT
switch (result) {
- case TC_ACT_QUEUED:
case TC_ACT_STOLEN:
*qerr = NET_XMIT_SUCCESS | __NET_XMIT_STOLEN;
case TC_ACT_SHOT:
diff --git a/net/sched/sch_sfb.c b/net/sched/sch_sfb.c
index 5819dd82630d..61e18108d0d3 100644
--- a/net/sched/sch_sfb.c
+++ b/net/sched/sch_sfb.c
@@ -264,7 +264,6 @@ static bool sfb_classify(struct sk_buff *skb, struct tcf_proto *fl,
#ifdef CONFIG_NET_CLS_ACT
switch (result) {
case TC_ACT_STOLEN:
- case TC_ACT_QUEUED:
*qerr = NET_XMIT_SUCCESS | __NET_XMIT_STOLEN;
case TC_ACT_SHOT:
return false;
diff --git a/net/sched/sch_sfq.c b/net/sched/sch_sfq.c
index b877140beda5..b508ff655da3 100644
--- a/net/sched/sch_sfq.c
+++ b/net/sched/sch_sfq.c
@@ -207,7 +207,6 @@ static unsigned int sfq_classify(struct sk_buff *skb, struct Qdisc *sch,
#ifdef CONFIG_NET_CLS_ACT
switch (result) {
case TC_ACT_STOLEN:
- case TC_ACT_QUEUED:
*qerr = NET_XMIT_SUCCESS | __NET_XMIT_STOLEN;
case TC_ACT_SHOT:
return 0;
--
1.7.9.5
--
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