rtnetlink: Compute and store minimum ifinfo dump size
The message size allocated for rtnl ifinfo dumps was limited to
a single page. This is not enough for additional interface info
available with devices that support SR-IOV and caused a bug in
which VF info would not be displayed if more than approximately
40 VFs were created per interface.
Implement a new function pointer for the rtnl_register service that will
calculate the amount of data required for the ifinfo dump and allocate
enough data to satisfy the request.
Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
diff --git a/net/decnet/dn_route.c b/net/decnet/dn_route.c
index 74544bc..2949ca4 100644
--- a/net/decnet/dn_route.c
+++ b/net/decnet/dn_route.c
@@ -1841,10 +1841,11 @@
proc_net_fops_create(&init_net, "decnet_cache", S_IRUGO, &dn_rt_cache_seq_fops);
#ifdef CONFIG_DECNET_ROUTER
- rtnl_register(PF_DECnet, RTM_GETROUTE, dn_cache_getroute, dn_fib_dump);
+ rtnl_register(PF_DECnet, RTM_GETROUTE, dn_cache_getroute,
+ dn_fib_dump, NULL);
#else
rtnl_register(PF_DECnet, RTM_GETROUTE, dn_cache_getroute,
- dn_cache_dump);
+ dn_cache_dump, NULL);
#endif
}