* [PATCH iproute2-next] ll_map: add RTEXT_FILTER_SKIP_STATS to ll_init_map()
@ 2026-04-28 7:56 Eric Dumazet
0 siblings, 0 replies; only message in thread
From: Eric Dumazet @ 2026-04-28 7:56 UTC (permalink / raw)
To: David Ahern, Stephen Hemminger
Cc: David S . Miller, Jakub Kicinski, Paolo Abeni, netdev,
eric.dumazet, Eric Dumazet
ll_init_map() only cares about names and ifindex.
We can save ~300 bytes per device if we ask the kernel to skip stats,
not counting many cpu cycles if per-cpu stats are involved.
Signed-off-by: Eric Dumazet <edumazet@google.com>
---
lib/ll_map.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/lib/ll_map.c b/lib/ll_map.c
index 8970c20f3cddedcdd1a6f522858fa350d2df8e5b..07937e27d4f6fb5506a3da6e9318270635224364 100644
--- a/lib/ll_map.c
+++ b/lib/ll_map.c
@@ -391,7 +391,9 @@ void ll_init_map(struct rtnl_handle *rth)
if (initialized)
return;
- if (rtnl_linkdump_req(rth, AF_UNSPEC) < 0) {
+ if (rtnl_linkdump_req_filter(rth, AF_UNSPEC,
+ RTEXT_FILTER_VF |
+ RTEXT_FILTER_SKIP_STATS) < 0) {
perror("Cannot send dump request");
exit(1);
}
--
2.54.0.545.g6539524ca2-goog
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