1 files changed, 13 insertions, 1 deletions

diff --git a/net/sctp/sysctl.c b/net/sctp/sysctl.c
index d50a042f9552..419e1e962c55 100644
--- a/net/sctp/sysctl.c
+++ b/net/sctp/sysctl.c
@@ -52,6 +52,7 @@ static int int_max = INT_MAX;
 static int sack_timer_min = 1;
 static int sack_timer_max = 500;
 static int addr_scope_max = 3; /* check sctp_scope_policy_t in include/net/sctp/constants.h for max entries */
+static int rwnd_scale_max = 16;
 
 extern int sysctl_sctp_mem[3];
 extern int sysctl_sctp_rmem[3];
@@ -241,7 +242,18 @@ static ctl_table sctp_table[] = {
                 .extra1         = &zero,
                 .extra2         = &addr_scope_max,
         },
-        { }
+        {
+                .procname       = "rwnd_update_shift",
+                .data           = &sctp_rwnd_upd_shift,
+                .maxlen         = sizeof(int),
+                .mode           = 0644,
+                .proc_handler   = &proc_dointvec_minmax,
+                .strategy       = &sysctl_intvec,
+                .extra1         = &one,
+                .extra2         = &rwnd_scale_max,
+        },
+
+        { /* sentinel */ }
 };
 
 static struct ctl_path sctp_path[] = {