On Sun, Oct 8, 2023 at 7:22 AM Akihiko Odaki akihiko.odaki@daynix.com wrote:
tun_vnet_hash can use this flag to indicate it stored virtio-net hash cache to cb.
Signed-off-by: Akihiko Odaki akihiko.odaki@daynix.com
include/linux/skbuff.h | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 4174c4b82d13..e638f157c13c 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -837,6 +837,7 @@ typedef unsigned char *sk_buff_data_t;
@truesize: Buffer size@users: User count - see {datagram,tcp}.c@extensions: allocated extensions, valid if active_extensions is nonzero
*/
@tun_vnet_hash: tun stored virtio-net hash cache to cbstruct sk_buff { @@ -989,6 +990,7 @@ struct sk_buff { #if IS_ENABLED(CONFIG_IP_SCTP) __u8 csum_not_inet:1; #endif
__u8 tun_vnet_hash:1;
sk_buff space is very limited.
No need to extend it, especially for code that stays within a single subsystem (tun).
To a lesser extent the same point applies to the qdisc_skb_cb.