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| author | Ido Schimmel <idosch@nvidia.com> | 2022-04-07 10:35:31 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-04-08 13:45:43 +0100 |
| commit | c440615ffbcb9c06975103e5abbcb094589329d1 (patch) | |
| tree | f961fad2f539517950b67183d0cc36842ef474a4 /net/sched | |
| parent | f8fab3169464623b88d0f423f8de2b28809c2fcf (diff) | |
| download | linux-c440615ffbcb9c06975103e5abbcb094589329d1.tar.gz linux-c440615ffbcb9c06975103e5abbcb094589329d1.tar.bz2 linux-c440615ffbcb9c06975103e5abbcb094589329d1.zip | |
net/sched: cls_api: Add extack message for unsupported action offload
For better error reporting to user space, add an extack message when the
requested action does not support offload.
Example:
# echo 1 > /sys/kernel/tracing/events/netlink/netlink_extack/enable
# tc filter add dev dummy0 ingress pref 1 proto all matchall skip_sw action nat ingress 192.0.2.1 198.51.100.1
Error: cls_matchall: Failed to setup flow action.
We have an error talking to the kernel
# cat /sys/kernel/tracing/trace_pipe
tc-181 [000] b..1. 88.406093: netlink_extack: msg=Action does not support offload
tc-181 [000] ..... 88.406108: netlink_extack: msg=cls_matchall: Failed to setup flow action
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched')
| -rw-r--r-- | net/sched/cls_api.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c index dd711ae048ff..d8a22bedd026 100644 --- a/net/sched/cls_api.c +++ b/net/sched/cls_api.c @@ -3517,11 +3517,13 @@ static int tc_setup_offload_act(struct tc_action *act, struct netlink_ext_ack *extack) { #ifdef CONFIG_NET_CLS_ACT - if (act->ops->offload_act_setup) + if (act->ops->offload_act_setup) { return act->ops->offload_act_setup(act, entry, index_inc, true, extack); - else + } else { + NL_SET_ERR_MSG(extack, "Action does not support offload"); return -EOPNOTSUPP; + } #else return 0; #endif |