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From: Andrew Lunn <andrew@lunn.ch>
To: Horatiu Vultur <horatiu.vultur@microchip.com>
Cc: davem@davemloft.net, kuba@kernel.org, robh+dt@kernel.org,
	UNGLinuxDriver@microchip.com, p.zabel@pengutronix.de,
	linux@armlinux.org.uk, netdev@vger.kernel.org,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH net-next v2 3/6] net: lan966x: add port module support
Date: Thu, 25 Nov 2021 15:59:10 +0100	[thread overview]
Message-ID: <YZ+kvpCmWomKNr9l@lunn.ch> (raw)
In-Reply-To: <20211125092638.7b2u75zdv2ulekmo@soft-dev3-1.localhost>

> If I undestood you correctly I have tried to do the following:
> 
> struct lan966x_ifh {
>     __be32 timestamp;
>     __be32 bypass : 1;
>     __be32 port : 3;
>     ...
> };
> 
> But then I start to get errors from sparse:
> 
> error: invalid bitfield specifier for type restricted __be32.

Maybe look at struct iphdr. It has bitfields for the header length and
the IP version.

    Andrew

  reply	other threads:[~2021-11-25 15:01 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-23 13:55 [PATCH net-next v2 0/6] net: lan966x: Add lan966x switch driver Horatiu Vultur
2021-11-23 13:55 ` [PATCH net-next v2 1/6] dt-bindings: net: lan966x: Add lan966x-switch bindings Horatiu Vultur
2021-11-23 13:55 ` [PATCH net-next v2 2/6] net: lan966x: add the basic lan966x driver Horatiu Vultur
2021-11-23 15:31   ` Denis Kirjanov
2021-11-24  8:13     ` Horatiu Vultur
2021-11-24  3:30   ` Jakub Kicinski
2021-11-24  8:14     ` Horatiu Vultur
2021-11-23 13:55 ` [PATCH net-next v2 3/6] net: lan966x: add port module support Horatiu Vultur
2021-11-24 17:59   ` Andrew Lunn
2021-11-25  9:26     ` Horatiu Vultur
2021-11-25 14:59       ` Andrew Lunn [this message]
2021-11-26  9:12         ` Horatiu Vultur
2021-11-23 13:55 ` [PATCH net-next v2 4/6] net: lan966x: add mactable support Horatiu Vultur
2021-11-23 13:55 ` [PATCH net-next v2 5/6] net: lan966x: add ethtool configuration and statistics Horatiu Vultur
2021-11-23 13:55 ` [PATCH net-next v2 6/6] net: lan966x: Update MAINTAINERS to include lan966x driver Horatiu Vultur

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