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authorPedro Tammela <pctammela@mojatatu.com>2022-12-06 10:55:11 -0300
committerDavid S. Miller <davem@davemloft.net>2022-12-09 09:18:07 +0000
commit7f0e810220e2d985338ecdd907c1598404db251d (patch)
treef02d70b80dee3335c3672c3188a0ae9136c72e67 /net/sched
parent2a7d228f1ae78b6eabef5f18bd1a8d2280555628 (diff)
downloadlinux-7f0e810220e2d985338ecdd907c1598404db251d.tar.bz2
net/sched: add retpoline wrapper for tc
On kernels using retpoline as a spectrev2 mitigation, optimize actions and filters that are compiled as built-ins into a direct call. On subsequent patches we expose the classifiers and actions functions and wire up the wrapper into tc. Signed-off-by: Pedro Tammela <pctammela@mojatatu.com> Reviewed-by: Jamal Hadi Salim <jhs@mojatatu.com> Reviewed-by: Victor Nogueira <victor@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched')
-rw-r--r--net/sched/sch_api.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index 4a27dfb1ba0f..2317db02c764 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -31,6 +31,7 @@
#include <net/netlink.h>
#include <net/pkt_sched.h>
#include <net/pkt_cls.h>
+#include <net/tc_wrapper.h>
#include <trace/events/qdisc.h>
@@ -2273,6 +2274,8 @@ static struct pernet_operations psched_net_ops = {
.exit = psched_net_exit,
};
+DEFINE_STATIC_KEY_FALSE(tc_skip_wrapper);
+
static int __init pktsched_init(void)
{
int err;
@@ -2300,6 +2303,8 @@ static int __init pktsched_init(void)
rtnl_register(PF_UNSPEC, RTM_GETTCLASS, tc_ctl_tclass, tc_dump_tclass,
0);
+ tc_wrapper_init();
+
return 0;
}