[PATCH v9 bpf-next 01/14] net: skbuff: add data_len field to skb_shared_info

Lorenzo Bianconi
2021-06-14T12:50:40Z

data_len field will be used for paged frame len for xdp_buff/xdp_frame.
This is a preliminary patch to properly support xdp-multibuff

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
include/linux/skbuff.h | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index dbf820a50a39..332ec56c200d 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -522,7 +522,10 @@ struct skb_shared_info {
struct sk_buff *frag_list;
struct skb_shared_hwtstamps hwtstamps;
unsigned int gso_type;
- u32 tskey;
+ union {
+ u32 tskey;
+ u32 data_len;
+ };

/*
* Warning : all fields before dataref are cleared in __alloc_skb()
--
2.31.1