linux-kernel - [PATCH net 1/8] net: microchip: vcap api: Erase VCAP cache before encoding rule

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Date:   Wed, 21 Dec 2022 14:25:10 +0100
From:   Steen Hegelund <steen.hegelund@...rochip.com>
To:     "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>
CC:     Steen Hegelund <steen.hegelund@...rochip.com>,
        <UNGLinuxDriver@...rochip.com>,
        Randy Dunlap <rdunlap@...radead.org>,
        "Casper Andersson" <casper.casan@...il.com>,
        Russell King <rmk+kernel@...linux.org.uk>,
        Wan Jiabing <wanjiabing@...o.com>,
        "Nathan Huckleberry" <nhuck@...gle.com>,
        <linux-kernel@...r.kernel.org>, <netdev@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        "Steen Hegelund" <Steen.Hegelund@...rochip.com>,
        Daniel Machon <daniel.machon@...rochip.com>,
        Horatiu Vultur <horatiu.vultur@...rochip.com>,
        Lars Povlsen <lars.povlsen@...rochip.com>,
        Dan Carpenter <error27@...il.com>
Subject: [PATCH net 1/8] net: microchip: vcap api: Erase VCAP cache before encoding rule

For consistency the VCAP cache area is erased just before the new rule is
being encoded.

Signed-off-by: Steen Hegelund <steen.hegelund@...rochip.com>
---
 drivers/net/ethernet/microchip/vcap/vcap_api.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/microchip/vcap/vcap_api.c b/drivers/net/ethernet/microchip/vcap/vcap_api.c
index 664aae3e2acd..b9b6432f4094 100644
--- a/drivers/net/ethernet/microchip/vcap/vcap_api.c
+++ b/drivers/net/ethernet/microchip/vcap/vcap_api.c
@@ -1823,6 +1823,7 @@ int vcap_add_rule(struct vcap_rule *rule)
 	}
 	if (move.count > 0)
 		vcap_move_rules(ri, &move);
+	vcap_erase_cache(ri);
 	ret = vcap_encode_rule(ri);
 	if (ret) {
 		pr_err("%s:%d: rule encoding error: %d\n", __func__, __LINE__, ret);
@@ -1885,7 +1886,6 @@ struct vcap_rule *vcap_alloc_rule(struct vcap_control *vctrl,
 	ri->vctrl = vctrl; /* refer to the client */
 	if (vcap_set_rule_id(ri) == 0)
 		goto out_free;
-	vcap_erase_cache(ri);
 	return (struct vcap_rule *)ri;
 
 out_free:
-- 
2.39.0