linux-kernel - Re: [PATCH net-next 06/15] net: macb: simplify macb_dma_desc_get

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <16907a1b-d5eb-4d2c-acea-195c2d1f7cc6@lunn.ch>
Date: Fri, 17 Oct 2025 19:57:05 +0200
From: Andrew Lunn <andrew@...n.ch>
To: Théo Lebrun <theo.lebrun@...tlin.com>
Cc: Andrew Lunn <andrew+netdev@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Nicolas Ferre <nicolas.ferre@...rochip.com>,
	Claudiu Beznea <claudiu.beznea@...on.dev>,
	Richard Cochran <richardcochran@...il.com>,
	Russell King <linux@...linux.org.uk>, netdev@...r.kernel.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	Vladimir Kondratiev <vladimir.kondratiev@...ileye.com>,
	Tawfik Bayouk <tawfik.bayouk@...ileye.com>,
	Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
	Grégory Clement <gregory.clement@...tlin.com>,
	Benoît Monin <benoit.monin@...tlin.com>,
	Maxime Chevallier <maxime.chevallier@...tlin.com>
Subject: Re: [PATCH net-next 06/15] net: macb: simplify
 macb_dma_desc_get_size()

On Tue, Oct 14, 2025 at 05:25:07PM +0200, Théo Lebrun wrote:
> macb_dma_desc_get_size() does a switch on bp->hw_dma_cap and covers all
> four cases: 0, 64B, PTP, 64B+PTP. It also covers the #ifndef
> MACB_EXT_DESC separately, making it four codepaths.
> 
> Instead, notice the descriptor size grows with enabled features and use
> plain if-statements on 64B and PTP flags.
> 
> Signed-off-by: Théo Lebrun <theo.lebrun@...tlin.com>

Reviewed-by: Andrew Lunn <andrew@...n.ch>

    Andrew