[NET_SCHED]: sch_api: introduce constant for rate table size

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 4 insertions, 1 deletions

diff --git a/include/linux/pkt_sched.h b/include/linux/pkt_sched.h
index 919af93b7059..32761352e858 100644
--- a/include/linux/pkt_sched.h
+++ b/include/linux/pkt_sched.h
@@ -83,6 +83,8 @@ struct tc_ratespec
         __u32           rate;
 };
 
+#define TC_RTAB_SIZE    1024
+
 /* FIFO section */
 
 struct tc_fifo_qopt
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index 8db554d54854..7e3c048ba9b1 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -244,7 +244,8 @@ struct qdisc_rate_table *qdisc_get_rtab(struct tc_ratespec *r, struct nlattr *ta
                 }
         }
 
-        if (tab == NULL || r->rate == 0 || r->cell_log == 0 || nla_len(tab) != 1024)
+        if (tab == NULL || r->rate == 0 || r->cell_log == 0 ||
+            nla_len(tab) != TC_RTAB_SIZE)
                 return NULL;
 
         rtab = kmalloc(sizeof(*rtab), GFP_KERNEL);