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net: sched: remove NET_CLS_IND config option

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This config option makes only couple of lines optional.
Two small helpers and an int in couple of cls structs.

Remove the config option and always compile this in.
This saves the user from unexpected surprises when he adds
a filter with ingress device match which is silently ignored
in case the config option is not set.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko 2019-06-15 11:03:49 +02:00 committed by David S. Miller
parent 9d9f3fba4c
commit a51486266c
22 changed files with 4 additions and 59 deletions
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1
arch/mips/configs/malta_defconfig
View File

@ -210,7 +210,6 @@ CONFIG_NET_ACT_NAT=m
CONFIG_NET_ACT_PEDIT=m
CONFIG_NET_ACT_SIMP=m
CONFIG_NET_ACT_SKBEDIT=m
CONFIG_NET_CLS_IND=y
CONFIG_CFG80211=m
CONFIG_MAC80211=m
CONFIG_MAC80211_MESH=y

1
arch/mips/configs/malta_kvm_defconfig
View File

@ -215,7 +215,6 @@ CONFIG_NET_ACT_NAT=m
CONFIG_NET_ACT_PEDIT=m
CONFIG_NET_ACT_SIMP=m
CONFIG_NET_ACT_SKBEDIT=m
CONFIG_NET_CLS_IND=y
CONFIG_CFG80211=m
CONFIG_MAC80211=m
CONFIG_MAC80211_MESH=y

1
arch/mips/configs/malta_kvm_guest_defconfig
View File

@ -212,7 +212,6 @@ CONFIG_NET_ACT_NAT=m
CONFIG_NET_ACT_PEDIT=m
CONFIG_NET_ACT_SIMP=m
CONFIG_NET_ACT_SKBEDIT=m
CONFIG_NET_CLS_IND=y
CONFIG_CFG80211=m
CONFIG_MAC80211=m
CONFIG_MAC80211_MESH=y

1
arch/mips/configs/malta_qemu_32r6_defconfig
View File

@ -74,7 +74,6 @@ CONFIG_NET_CLS_RSVP=m
CONFIG_NET_CLS_RSVP6=m
CONFIG_NET_CLS_ACT=y
CONFIG_NET_ACT_POLICE=y
CONFIG_NET_CLS_IND=y
# CONFIG_WIRELESS is not set
CONFIG_DEVTMPFS=y
CONFIG_BLK_DEV_LOOP=y

1
arch/mips/configs/maltaaprp_defconfig
View File

@ -76,7 +76,6 @@ CONFIG_NET_CLS_RSVP=m
CONFIG_NET_CLS_RSVP6=m
CONFIG_NET_CLS_ACT=y
CONFIG_NET_ACT_POLICE=y
CONFIG_NET_CLS_IND=y
# CONFIG_WIRELESS is not set
CONFIG_DEVTMPFS=y
CONFIG_BLK_DEV_LOOP=y

1
arch/mips/configs/maltasmvp_defconfig
View File

@ -77,7 +77,6 @@ CONFIG_NET_CLS_RSVP=m
CONFIG_NET_CLS_RSVP6=m
CONFIG_NET_CLS_ACT=y
CONFIG_NET_ACT_POLICE=y
CONFIG_NET_CLS_IND=y
# CONFIG_WIRELESS is not set
CONFIG_DEVTMPFS=y
CONFIG_BLK_DEV_LOOP=y

1
arch/mips/configs/maltasmvp_eva_defconfig
View File

@ -78,7 +78,6 @@ CONFIG_NET_CLS_RSVP=m
CONFIG_NET_CLS_RSVP6=m
CONFIG_NET_CLS_ACT=y
CONFIG_NET_ACT_POLICE=y
CONFIG_NET_CLS_IND=y
# CONFIG_WIRELESS is not set
CONFIG_DEVTMPFS=y
CONFIG_BLK_DEV_LOOP=y

1
arch/mips/configs/maltaup_defconfig
View File

@ -75,7 +75,6 @@ CONFIG_NET_CLS_RSVP=m
CONFIG_NET_CLS_RSVP6=m
CONFIG_NET_CLS_ACT=y
CONFIG_NET_ACT_POLICE=y
CONFIG_NET_CLS_IND=y
# CONFIG_WIRELESS is not set
CONFIG_DEVTMPFS=y
CONFIG_BLK_DEV_LOOP=y

1
arch/mips/configs/maltaup_xpa_defconfig
View File

@ -212,7 +212,6 @@ CONFIG_NET_ACT_NAT=m
CONFIG_NET_ACT_PEDIT=m
CONFIG_NET_ACT_SIMP=m
CONFIG_NET_ACT_SKBEDIT=m
CONFIG_NET_CLS_IND=y
CONFIG_CFG80211=m
CONFIG_MAC80211=m
CONFIG_MAC80211_MESH=y

1
arch/mips/configs/rb532_defconfig
View File

@ -103,7 +103,6 @@ CONFIG_GACT_PROB=y
CONFIG_NET_ACT_MIRRED=m
CONFIG_NET_ACT_IPT=m
CONFIG_NET_ACT_PEDIT=m
CONFIG_NET_CLS_IND=y
CONFIG_HAMRADIO=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y

1
arch/powerpc/configs/ppc6xx_defconfig
View File

@ -301,7 +301,6 @@ CONFIG_NET_ACT_NAT=m
CONFIG_NET_ACT_PEDIT=m
CONFIG_NET_ACT_SIMP=m
CONFIG_NET_ACT_SKBEDIT=m
CONFIG_NET_CLS_IND=y
CONFIG_IRDA=m
CONFIG_IRLAN=m
CONFIG_IRNET=m

1
arch/sh/configs/se7712_defconfig
View File

@ -63,7 +63,6 @@ CONFIG_NET_SCH_NETEM=y
CONFIG_NET_CLS_TCINDEX=y
CONFIG_NET_CLS_ROUTE4=y
CONFIG_NET_CLS_FW=y
CONFIG_NET_CLS_IND=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
CONFIG_MTD_BLOCK=y

1
arch/sh/configs/se7721_defconfig
View File

@ -62,7 +62,6 @@ CONFIG_NET_SCH_NETEM=y
CONFIG_NET_CLS_TCINDEX=y
CONFIG_NET_CLS_ROUTE4=y
CONFIG_NET_CLS_FW=y
CONFIG_NET_CLS_IND=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_MTD=y
CONFIG_MTD_BLOCK=y

1
arch/sh/configs/titan_defconfig
View File

@ -142,7 +142,6 @@ CONFIG_GACT_PROB=y
CONFIG_NET_ACT_MIRRED=m
CONFIG_NET_ACT_IPT=m
CONFIG_NET_ACT_PEDIT=m
CONFIG_NET_CLS_IND=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_FW_LOADER=m
CONFIG_CONNECTOR=m

5
include/net/pkt_cls.h
View File

@ -7,6 +7,7 @@
#include <net/sch_generic.h>
#include <net/act_api.h>
#include <net/flow_offload.h>
#include <net/net_namespace.h>
/* TC action not accessible from user space */
#define TC_ACT_REINSERT (TC_ACT_VALUE_MAX + 1)
@ -576,9 +577,6 @@ static inline int tcf_valid_offset(const struct sk_buff *skb,
(ptr <= (ptr + len)));
}
#ifdef CONFIG_NET_CLS_IND
#include <net/net_namespace.h>
static inline int
tcf_change_indev(struct net *net, struct nlattr *indev_tlv,
struct netlink_ext_ack *extack)
@ -605,7 +603,6 @@ tcf_match_indev(struct sk_buff *skb, int ifindex)
return false;
return ifindex == skb->skb_iif;
}
#endif /* CONFIG_NET_CLS_IND */
int tc_setup_flow_action(struct flow_action *flow_action,
const struct tcf_exts *exts);

2
include/uapi/linux/pkt_cls.h
View File

@ -295,7 +295,7 @@ enum {
TCA_FW_UNSPEC,
TCA_FW_CLASSID,
TCA_FW_POLICE,
TCA_FW_INDEV, /* used by CONFIG_NET_CLS_IND */
TCA_FW_INDEV,
TCA_FW_ACT, /* used by CONFIG_NET_CLS_ACT */
TCA_FW_MASK,
__TCA_FW_MAX

8
net/sched/Kconfig
View File

@ -941,14 +941,6 @@ config NET_IFE_SKBTCINDEX
tristate "Support to encoding decoding skb tcindex on IFE action"
depends on NET_ACT_IFE
config NET_CLS_IND
bool "Incoming device classification"
depends on NET_CLS_U32 || NET_CLS_FW
---help---
Say Y here to extend the u32 and fw classifier to support
classification based on the incoming device. This option is
likely to disappear in favour of the metadata ematch.
endif # NET_SCHED
config NET_SCH_FIFO

3
net/sched/cls_flower.c
View File

@ -1010,7 +1010,7 @@ static int fl_set_key(struct net *net, struct nlattr **tb,
{
__be16 ethertype;
int ret = 0;
#ifdef CONFIG_NET_CLS_IND
if (tb[TCA_FLOWER_INDEV]) {
int err = tcf_change_indev(net, tb[TCA_FLOWER_INDEV], extack);
if (err < 0)
@ -1018,7 +1018,6 @@ static int fl_set_key(struct net *net, struct nlattr **tb,
key->indev_ifindex = err;
mask->indev_ifindex = 0xffffffff;
}
#endif
fl_set_key_val(tb, key->eth.dst, TCA_FLOWER_KEY_ETH_DST,
mask->eth.dst, TCA_FLOWER_KEY_ETH_DST_MASK,

13
net/sched/cls_fw.c
View File

@ -8,9 +8,6 @@
* Karlis Peisenieks <karlis@mt.lv> : 990415 : fw_walk off by one
* Karlis Peisenieks <karlis@mt.lv> : 990415 : fw_delete killed all the filter (and kernel).
* Alex <alex@pilotsoft.com> : 2004xxyy: Added Action extension
*
* JHS: We should remove the CONFIG_NET_CLS_IND from here
* eventually when the meta match extension is made available
*/
#include <linux/module.h>
@ -37,9 +34,7 @@ struct fw_filter {
struct fw_filter __rcu *next;
u32 id;
struct tcf_result res;
#ifdef CONFIG_NET_CLS_IND
int ifindex;
#endif /* CONFIG_NET_CLS_IND */
struct tcf_exts exts;
struct tcf_proto *tp;
struct rcu_work rwork;
@ -67,10 +62,8 @@ static int fw_classify(struct sk_buff *skb, const struct tcf_proto *tp,
f = rcu_dereference_bh(f->next)) {
if (f->id == id) {
*res = f->res;
#ifdef CONFIG_NET_CLS_IND
if (!tcf_match_indev(skb, f->ifindex))
continue;
#endif /* CONFIG_NET_CLS_IND */
r = tcf_exts_exec(skb, &f->exts, res);
if (r < 0)
continue;
@ -222,7 +215,6 @@ static int fw_set_parms(struct net *net, struct tcf_proto *tp,
tcf_bind_filter(tp, &f->res, base);
}
#ifdef CONFIG_NET_CLS_IND
if (tb[TCA_FW_INDEV]) {
int ret;
ret = tcf_change_indev(net, tb[TCA_FW_INDEV], extack);
@ -230,7 +222,6 @@ static int fw_set_parms(struct net *net, struct tcf_proto *tp,
return ret;
f->ifindex = ret;
}
#endif /* CONFIG_NET_CLS_IND */
err = -EINVAL;
if (tb[TCA_FW_MASK]) {
@ -276,9 +267,7 @@ static int fw_change(struct net *net, struct sk_buff *in_skb,
fnew->id = f->id;
fnew->res = f->res;
#ifdef CONFIG_NET_CLS_IND
fnew->ifindex = f->ifindex;
#endif /* CONFIG_NET_CLS_IND */
fnew->tp = f->tp;
err = tcf_exts_init(&fnew->exts, net, TCA_FW_ACT,
@ -405,14 +394,12 @@ static int fw_dump(struct net *net, struct tcf_proto *tp, void *fh,
if (f->res.classid &&
nla_put_u32(skb, TCA_FW_CLASSID, f->res.classid))
goto nla_put_failure;
#ifdef CONFIG_NET_CLS_IND
if (f->ifindex) {
struct net_device *dev;
dev = __dev_get_by_index(net, f->ifindex);
if (dev && nla_put_string(skb, TCA_FW_INDEV, dev->name))
goto nla_put_failure;
}
#endif /* CONFIG_NET_CLS_IND */
if (head->mask != 0xFFFFFFFF &&
nla_put_u32(skb, TCA_FW_MASK, head->mask))
goto nla_put_failure;

15
net/sched/cls_u32.c
View File

@ -20,9 +20,6 @@
* pure RSVP doesn't need such a general approach and can use
* much simpler (and faster) schemes, sort of cls_rsvp.c.
*
* JHS: We should remove the CONFIG_NET_CLS_IND from here
* eventually when the meta match extension is made available
*
* nfmark match added by Catalin(ux aka Dino) BOIE <catab at umbrella.ro>
*/
@ -48,9 +45,7 @@ struct tc_u_knode {
u32 handle;
struct tc_u_hnode __rcu *ht_up;
struct tcf_exts exts;
#ifdef CONFIG_NET_CLS_IND
int ifindex;
#endif
u8 fshift;
struct tcf_result res;
struct tc_u_hnode __rcu *ht_down;
@ -176,12 +171,10 @@ check_terminal:
if (n->sel.flags & TC_U32_TERMINAL) {
*res = n->res;
#ifdef CONFIG_NET_CLS_IND
if (!tcf_match_indev(skb, n->ifindex)) {
n = rcu_dereference_bh(n->next);
goto next_knode;
}
#endif
#ifdef CONFIG_CLS_U32_PERF
__this_cpu_inc(n->pf->rhit);
#endif
@ -761,7 +754,6 @@ static int u32_set_parms(struct net *net, struct tcf_proto *tp,
tcf_bind_filter(tp, &n->res, base);
}
#ifdef CONFIG_NET_CLS_IND
if (tb[TCA_U32_INDEV]) {
int ret;
ret = tcf_change_indev(net, tb[TCA_U32_INDEV], extack);
@ -769,7 +761,6 @@ static int u32_set_parms(struct net *net, struct tcf_proto *tp,
return -EINVAL;
n->ifindex = ret;
}
#endif
return 0;
}
@ -817,9 +808,7 @@ static struct tc_u_knode *u32_init_knode(struct net *net, struct tcf_proto *tp,
new->handle = n->handle;
RCU_INIT_POINTER(new->ht_up, n->ht_up);
#ifdef CONFIG_NET_CLS_IND
new->ifindex = n->ifindex;
#endif
new->fshift = n->fshift;
new->res = n->res;
new->flags = n->flags;
@ -1351,14 +1340,12 @@ static int u32_dump(struct net *net, struct tcf_proto *tp, void *fh,
if (tcf_exts_dump(skb, &n->exts) < 0)
goto nla_put_failure;
#ifdef CONFIG_NET_CLS_IND
if (n->ifindex) {
struct net_device *dev;
dev = __dev_get_by_index(net, n->ifindex);
if (dev && nla_put_string(skb, TCA_U32_INDEV, dev->name))
goto nla_put_failure;
}
#endif
#ifdef CONFIG_CLS_U32_PERF
gpf = kzalloc(sizeof(struct tc_u32_pcnt) +
n->sel.nkeys * sizeof(u64),
@ -1422,9 +1409,7 @@ static int __init init_u32(void)
#ifdef CONFIG_CLS_U32_PERF
pr_info(" Performance counters on\n");
#endif
#ifdef CONFIG_NET_CLS_IND
pr_info(" input device check on\n");
#endif
#ifdef CONFIG_NET_CLS_ACT
pr_info(" Actions configured\n");
#endif

2
tools/include/uapi/linux/pkt_cls.h
View File

@ -257,7 +257,7 @@ enum {
TCA_FW_UNSPEC,
TCA_FW_CLASSID,
TCA_FW_POLICE,
TCA_FW_INDEV, /* used by CONFIG_NET_CLS_IND */
TCA_FW_INDEV,
TCA_FW_ACT, /* used by CONFIG_NET_CLS_ACT */
TCA_FW_MASK,
__TCA_FW_MAX

1
tools/testing/selftests/tc-testing/config
View File

@ -45,5 +45,4 @@ CONFIG_NET_ACT_TUNNEL_KEY=m
CONFIG_NET_IFE_SKBMARK=m
CONFIG_NET_IFE_SKBPRIO=m
CONFIG_NET_IFE_SKBTCINDEX=m
CONFIG_NET_CLS_IND=y
CONFIG_NET_SCH_FIFO=y