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Message-Id: <20230928084430.1882670-7-radu-nicolae.pirea@oss.nxp.com>
Date:   Thu, 28 Sep 2023 11:44:26 +0300
From:   "Radu Pirea (NXP OSS)" <radu-nicolae.pirea@....nxp.com>
To:     sgoutham@...vell.com, gakula@...vell.com, sbhatta@...vell.com,
        hkelam@...vell.com, davem@...emloft.net, edumazet@...gle.com,
        kuba@...nel.org, pabeni@...hat.com, borisp@...dia.com,
        saeedm@...dia.com, leon@...nel.org, sd@...asysnail.net,
        andrew@...n.ch, hkallweit1@...il.com, linux@...linux.org.uk,
        richardcochran@...il.com, sebastian.tobuschat@....nxp.com
Cc:     linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        linux-rdma@...r.kernel.org,
        "Radu Pirea (NXP OSS)" <radu-nicolae.pirea@....nxp.com>
Subject: [PATCH net-next v6 06/10] net: phy: mscc: macsec: reject PN update requests

Updating the PN is not supported.
Return -EINVAL if update_pn is true.

Signed-off-by: Radu Pirea (NXP OSS) <radu-nicolae.pirea@....nxp.com>
---
Changes in v6:
- patch added in v6

 drivers/net/phy/mscc/mscc_macsec.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/phy/mscc/mscc_macsec.c b/drivers/net/phy/mscc/mscc_macsec.c
index 018253a573b8..4f39ba63a9a9 100644
--- a/drivers/net/phy/mscc/mscc_macsec.c
+++ b/drivers/net/phy/mscc/mscc_macsec.c
@@ -849,6 +849,9 @@ static int vsc8584_macsec_upd_rxsa(struct macsec_context *ctx)
 	struct macsec_flow *flow;
 	int ret;
 
+	if (ctx->sa.update_pn)
+		return -EINVAL;
+
 	flow = vsc8584_macsec_find_flow(ctx, MACSEC_INGR);
 	if (IS_ERR(flow))
 		return PTR_ERR(flow);
@@ -900,6 +903,9 @@ static int vsc8584_macsec_upd_txsa(struct macsec_context *ctx)
 	struct macsec_flow *flow;
 	int ret;
 
+	if (ctx->sa.update_pn)
+		return -EINVAL;
+
 	flow = vsc8584_macsec_find_flow(ctx, MACSEC_EGR);
 	if (IS_ERR(flow))
 		return PTR_ERR(flow);
-- 
2.34.1

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