[PATCH net-next v4 10/14] netkit: Document fast vs slowpath members via macros
From: Daniel Borkmann <daniel@iogearbox.net>
Date: 2025-10-31 21:21:36
Also in:
bpf
Subsystem:
bpf [netkit] (bpf-programmable network device), networking drivers, the rest · Maintainers:
Daniel Borkmann, Nikolay Aleksandrov, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Instead of a comment, just use two cachline groups to document the intent for members often accessed in fast or slow path. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Co-developed-by: David Wei <redacted> Signed-off-by: David Wei <redacted> Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org> --- drivers/net/netkit.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/net/netkit.c b/drivers/net/netkit.c
index e3a2445d83fc..96734828bfb8 100644
--- a/drivers/net/netkit.c
+++ b/drivers/net/netkit.c@@ -16,18 +16,20 @@ #define DRV_NAME "netkit" struct netkit { - /* Needed in fast-path */ + __cacheline_group_begin(netkit_fastpath); struct net_device __rcu *peer; struct bpf_mprog_entry __rcu *active; enum netkit_action policy; enum netkit_scrub scrub; struct bpf_mprog_bundle bundle; + __cacheline_group_end(netkit_fastpath); - /* Needed in slow-path */ + __cacheline_group_begin(netkit_slowpath); enum netkit_mode mode; enum netkit_pairing pair; bool primary; u32 headroom; + __cacheline_group_end(netkit_slowpath); }; struct netkit_link {
--
2.43.0