From: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Date: Thu, 11 Apr 2024 10:52:56 +0000 (+0000)
Subject: net: prestera: flower: validate control flags
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=f8a5ea8c2a7f2ad65e0b3f4e5054b9ebfc87c25e;p=linux.git

net: prestera: flower: validate control flags

Add check for unsupported control flags.

Only compile-tested, no access to HW.

Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/ethernet/marvell/prestera/prestera_flower.c b/drivers/net/ethernet/marvell/prestera/prestera_flower.c
index 8b9455d8a4f7a..418101a931490 100644
--- a/drivers/net/ethernet/marvell/prestera/prestera_flower.c
+++ b/drivers/net/ethernet/marvell/prestera/prestera_flower.c
@@ -229,6 +229,10 @@ static int prestera_flower_parse(struct prestera_flow_block *block,
 
 		flow_rule_match_control(f_rule, &match);
 		addr_type = match.key->addr_type;
+
+		if (flow_rule_has_control_flags(match.mask->flags,
+						f->common.extack))
+			return -EOPNOTSUPP;
 	}
 
 	if (flow_rule_match_key(f_rule, FLOW_DISSECTOR_KEY_BASIC)) {