linux-kernel - Re: [PATCH net-next] bnxt_en: flower: validate control flags

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Date: Tue, 23 Apr 2024 14:56:48 +0200
From: Jiri Pirko <jiri@...nulli.us>
To: Asbjørn Sloth Tønnesen <ast@...erby.net>
Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Michael Chan <michael.chan@...adcom.com>
Subject: Re: [PATCH net-next] bnxt_en: flower: validate control flags

Mon, Apr 22, 2024 at 05:26:23PM CEST, ast@...erby.net wrote:
>This driver currently doesn't support any control flags.
>
>Use flow_rule_match_has_control_flags() to check for control flags,
>such as can be set through `tc flower ... ip_flags frag`.
>
>In case any control flags are masked, flow_rule_match_has_control_flags()
>sets a NL extended error message, and we return -EOPNOTSUPP.
>
>Only compile-tested.
>
>Signed-off-by: Asbjørn Sloth Tønnesen <ast@...erby.net>

Reviewed-by: Jiri Pirko <jiri@...dia.com>