* [PATCH iproute2-next] ll_map: add RTEXT_FILTER_SKIP_STATS to ll_init_map()
@ 2026-04-28 7:56 Eric Dumazet
2026-04-30 15:40 ` patchwork-bot+netdevbpf
0 siblings, 1 reply; 2+ messages 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
^ permalink raw reply related [flat|nested] 2+ messages in thread* Re: [PATCH iproute2-next] ll_map: add RTEXT_FILTER_SKIP_STATS to ll_init_map()
2026-04-28 7:56 [PATCH iproute2-next] ll_map: add RTEXT_FILTER_SKIP_STATS to ll_init_map() Eric Dumazet
@ 2026-04-30 15:40 ` patchwork-bot+netdevbpf
0 siblings, 0 replies; 2+ messages in thread
From: patchwork-bot+netdevbpf @ 2026-04-30 15:40 UTC (permalink / raw)
To: Eric Dumazet; +Cc: dsahern, stephen, davem, kuba, pabeni, netdev, eric.dumazet
Hello:
This patch was applied to iproute2/iproute2-next.git (main)
by David Ahern <dsahern@kernel.org>:
On Tue, 28 Apr 2026 07:56:47 +0000 you wrote:
> 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>
>
> [...]
Here is the summary with links:
- [iproute2-next] ll_map: add RTEXT_FILTER_SKIP_STATS to ll_init_map()
https://git.kernel.org/pub/scm/network/iproute2/iproute2-next.git/commit/?id=7bd7f33509d0
You are awesome, thank you!
--
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2026-04-28 7:56 [PATCH iproute2-next] ll_map: add RTEXT_FILTER_SKIP_STATS to ll_init_map() Eric Dumazet
2026-04-30 15:40 ` patchwork-bot+netdevbpf
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