linux-kernel - Re: [PATCH iwl-next] igb: flower: validate control flags

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Message-ID: <20240418183821.GO3975545@kernel.org>
Date: Thu, 18 Apr 2024 19:38:21 +0100
From: Simon Horman <horms@...nel.org>
To: Asbjørn Sloth Tønnesen <ast@...erby.net>
Cc: intel-wired-lan@...ts.osuosl.org, 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>,
	Jesse Brandeburg <jesse.brandeburg@...el.com>,
	Tony Nguyen <anthony.l.nguyen@...el.com>
Subject: Re: [PATCH iwl-next] igb: flower: validate control flags

On Tue, Apr 16, 2024 at 02:43:35PM +0000, Asbjørn Sloth Tønnesen 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: Simon Horman <horms@...nel.org>