netdev - Re: [PATCH net-next v5 12/16] net: Replace hwtstamp

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Message-ID: <09b7752f-1081-45c7-b19d-06d2196167de@broadcom.com>
Date: Mon, 9 Oct 2023 14:23:46 -0700
From: Florian Fainelli <florian.fainelli@...adcom.com>
To: Köry Maincent <kory.maincent@...tlin.com>,
 netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-doc@...r.kernel.org
Cc: Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
 "David S . Miller" <davem@...emloft.net>, Eric Dumazet
 <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>,
 Paolo Abeni <pabeni@...hat.com>, Jonathan Corbet <corbet@....net>,
 Jay Vosburgh <j.vosburgh@...il.com>, Andy Gospodarek <andy@...yhouse.net>,
 Nicolas Ferre <nicolas.ferre@...rochip.com>,
 Claudiu Beznea <claudiu.beznea@...on.dev>,
 Horatiu Vultur <horatiu.vultur@...rochip.com>, UNGLinuxDriver@...rochip.com,
 Broadcom internal kernel review list
 <bcm-kernel-feedback-list@...adcom.com>, Andrew Lunn <andrew@...n.ch>,
 Heiner Kallweit <hkallweit1@...il.com>, Russell King
 <linux@...linux.org.uk>, Richard Cochran <richardcochran@...il.com>,
 Radu Pirea <radu-nicolae.pirea@....nxp.com>,
 Willem de Bruijn <willemdebruijn.kernel@...il.com>,
 Vladimir Oltean <vladimir.oltean@....com>, Michael Walle <michael@...le.cc>,
 Jacob Keller <jacob.e.keller@...el.com>,
 Maxime Chevallier <maxime.chevallier@...tlin.com>
Subject: Re: [PATCH net-next v5 12/16] net: Replace hwtstamp_source by
 timestamping layer

On 10/9/23 08:51, Köry Maincent wrote:
> From: Kory Maincent <kory.maincent@...tlin.com>
> 
> Replace hwtstamp_source which is only used by the kernel_hwtstamp_config
> structure by the more widely use timestamp_layer structure. This is done
> to prepare the support of selectable timestamping source.
> 
> Signed-off-by: Kory Maincent <kory.maincent@...tlin.com>
> ---
[snip]
>    * Prefer using this structure for in-kernel processing of hardware
>    * timestamping configuration, over the inextensible struct hwtstamp_config
> @@ -33,7 +28,7 @@ struct kernel_hwtstamp_config {
>   	int rx_filter;
>   	struct ifreq *ifr;
>   	bool copied_to_user;
> -	enum hwtstamp_source source;

It would be kind of nice to keep using the enum internally such that we 
can catch unhandled values, which the compiler is usually quite good at 
figuring.
-- 
Florian

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