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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-01-13 12:11:40 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-01-13 12:11:40 +0100
commit845f081002eebd7a1216fc0a5ef2c862dc6d093e (patch)
tree41f5ee3829836aafc4d872edf2c2e22390ae6034 /include/net/sch_generic.h
parent585c91f40d201bc564d4e76b83c05b3b5363fe7e (diff)
parentb3a987b0264d3ddbb24293ebff10eddfc472f653 (diff)
Merge 5.5-rc6 into usb-next
We need the USB fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/net/sch_generic.h')
-rw-r--r--include/net/sch_generic.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index 144f264ea394..fceddf89592a 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -308,6 +308,7 @@ struct tcf_proto_ops {
int (*delete)(struct tcf_proto *tp, void *arg,
bool *last, bool rtnl_held,
struct netlink_ext_ack *);
+ bool (*delete_empty)(struct tcf_proto *tp);
void (*walk)(struct tcf_proto *tp,
struct tcf_walker *arg, bool rtnl_held);
int (*reoffload)(struct tcf_proto *tp, bool add,
@@ -336,6 +337,10 @@ struct tcf_proto_ops {
int flags;
};
+/* Classifiers setting TCF_PROTO_OPS_DOIT_UNLOCKED in tcf_proto_ops->flags
+ * are expected to implement tcf_proto_ops->delete_empty(), otherwise race
+ * conditions can occur when filters are inserted/deleted simultaneously.
+ */
enum tcf_proto_ops_flags {
TCF_PROTO_OPS_DOIT_UNLOCKED = 1,
};