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xfrm: extend add state callback to set failure reason

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Almost all validation logic is in the drivers, but they are
missing reliable way to convey failure reason to userspace
applications.

Let's use extack to return this information to users.

Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Leon Romanovsky
2023-01-24 13:54:59 +02:00
committed by Jakub Kicinski
parent 1bb70c5ab6
commit 7681a4f58f
12 changed files with 30 additions and 20 deletions
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include/linux/netdevice.h
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@@ -1035,7 +1035,7 @@ struct netdev_bpf {
#ifdef CONFIG_XFRM_OFFLOAD
struct xfrmdev_ops {
int (*xdo_dev_state_add) (struct xfrm_state *x);
int (*xdo_dev_state_add) (struct xfrm_state *x, struct netlink_ext_ack *extack);
void (*xdo_dev_state_delete) (struct xfrm_state *x);
void (*xdo_dev_state_free) (struct xfrm_state *x);
bool (*xdo_dev_offload_ok) (struct sk_buff *skb,