netdev - Re: [PATCH net-next v12 09/13] net: Add the possibility to support a selected hwtstamp in netdevice

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Message-ID: <20240501191016.52b5c92f@kernel.org>
Date: Wed, 1 May 2024 19:10:16 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: Kory Maincent <kory.maincent@...tlin.com>
Cc: Florian Fainelli <florian.fainelli@...adcom.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>, "David S. Miller" <davem@...emloft.net>, Eric
 Dumazet <edumazet@...gle.com>, Paolo Abeni <pabeni@...hat.com>, Richard
 Cochran <richardcochran@...il.com>, Radu Pirea
 <radu-nicolae.pirea@....nxp.com>, Jay Vosburgh <j.vosburgh@...il.com>, Andy
 Gospodarek <andy@...yhouse.net>, Nicolas Ferre
 <nicolas.ferre@...rochip.com>, Claudiu Beznea <claudiu.beznea@...on.dev>,
 Willem de Bruijn <willemdebruijn.kernel@...il.com>, Jonathan Corbet
 <corbet@....net>, Horatiu Vultur <horatiu.vultur@...rochip.com>,
 UNGLinuxDriver@...rochip.com, Simon Horman <horms@...nel.org>, Vladimir
 Oltean <vladimir.oltean@....com>, Thomas Petazzoni
 <thomas.petazzoni@...tlin.com>, netdev@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org, Maxime Chevallier
 <maxime.chevallier@...tlin.com>, Rahul Rameshbabu <rrameshbabu@...dia.com>
Subject: Re: [PATCH net-next v12 09/13] net: Add the possibility to support
 a selected hwtstamp in netdevice

On Tue, 30 Apr 2024 17:49:52 +0200 Kory Maincent wrote:
>  static inline void hwtstamp_config_to_kernel(struct kernel_hwtstamp_config *kernel_cfg,
> diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
> index f0e4572cdad5..f6333b8a630d 100644
> --- a/include/linux/netdevice.h
> +++ b/include/linux/netdevice.h
> @@ -46,6 +46,7 @@
>  #include <uapi/linux/if_bonding.h>
>  #include <uapi/linux/pkt_cls.h>
>  #include <uapi/linux/netdev.h>
> +#include <linux/net_tstamp.h>
>  #include <linux/hashtable.h>
>  #include <linux/rbtree.h>
>  #include <net/net_trackers.h>
> @@ -2026,6 +2027,8 @@ enum netdev_reg_state {
>   *	@dpll_pin: Pointer to the SyncE source pin of a DPLL subsystem,
>   *		   where the clock is recovered.
>   *
> + *	@hwtstamp: Tracks which PTP performs hardware packet time stamping.
> + *
>   *	FIXME: cleanup struct net_device such that network protocol info
>   *	moves out.
>   */
> @@ -2400,6 +2403,8 @@ struct net_device {
>  	/** @page_pools: page pools created for this netdevice */
>  	struct hlist_head	page_pools;
>  #endif
> +
> +	struct hwtstamp_provider	*hwtstamp;
>  };
>  #define to_net_dev(d) container_of(d, struct net_device, dev)

Please avoid adding includes to netdevice.h.
IDK if you have more dependencies in later patches but for a pointer
member you don't even need a forward declaration, let alone include.