linux-kernel - [PATCH 5.19 036/155] nfp: flower: fix ingress police using matchall filter

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Message-Id: <20220906132830.951055764@linuxfoundation.org>
Date:   Tue,  6 Sep 2022 15:29:44 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Tianyu Yuan <tianyu.yuan@...igine.com>,
        Baowen Zheng <baowen.zheng@...igine.com>,
        Louis Peens <louis.peens@...igine.com>,
        Simon Horman <simon.horman@...igine.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.19 036/155] nfp: flower: fix ingress police using matchall filter

From: Tianyu Yuan <tianyu.yuan@...igine.com>

[ Upstream commit ebe5555c2f34505cdb1ae5c3de8b24e33740b3e0 ]

Referenced commit introduced nfp_policer_validate in the progress
installing rate limiter. This validate check the action id and will
reject police with CONTINUE, which is required to support ingress
police offload.

Fix this issue by allowing FLOW_ACTION_CONTINUE as notexceed action
id in nfp_policer_validate

Fixes: d97b4b105ce7 ("flow_offload: reject offload for all drivers with invalid police parameters")
Signed-off-by: Tianyu Yuan <tianyu.yuan@...igine.com>
Reviewed-by: Baowen Zheng <baowen.zheng@...igine.com>
Reviewed-by: Louis Peens <louis.peens@...igine.com>
Signed-off-by: Simon Horman <simon.horman@...igine.com>
Link: https://lore.kernel.org/r/20220825080845.507534-1-simon.horman@corigine.com
Signed-off-by: Jakub Kicinski <kuba@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/net/ethernet/netronome/nfp/flower/qos_conf.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/netronome/nfp/flower/qos_conf.c b/drivers/net/ethernet/netronome/nfp/flower/qos_conf.c
index 3206ba83b1aaa..de2ef5bf8c694 100644
--- a/drivers/net/ethernet/netronome/nfp/flower/qos_conf.c
+++ b/drivers/net/ethernet/netronome/nfp/flower/qos_conf.c
@@ -127,10 +127,11 @@ static int nfp_policer_validate(const struct flow_action *action,
 		return -EOPNOTSUPP;
 	}
 
-	if (act->police.notexceed.act_id != FLOW_ACTION_PIPE &&
+	if (act->police.notexceed.act_id != FLOW_ACTION_CONTINUE &&
+	    act->police.notexceed.act_id != FLOW_ACTION_PIPE &&
 	    act->police.notexceed.act_id != FLOW_ACTION_ACCEPT) {
 		NL_SET_ERR_MSG_MOD(extack,
-				   "Offload not supported when conform action is not pipe or ok");
+				   "Offload not supported when conform action is not continue, pipe or ok");
 		return -EOPNOTSUPP;
 	}
 
-- 
2.35.1