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From: Jakub Kicinski <kuba@kernel.org>
To: Daniel Jurgens <danielj@nvidia.com>
Cc: <netdev@vger.kernel.org>, <mst@redhat.com>, <jasowang@redhat.com>,
	<alex.williamson@redhat.com>, <pabeni@redhat.com>,
	<virtualization@lists.linux.dev>, <parav@nvidia.com>,
	<shshitrit@nvidia.com>, <yohadt@nvidia.com>,
	<xuanzhuo@linux.alibaba.com>, <eperezma@redhat.com>,
	<shameerali.kolothum.thodi@huawei.com>, <jgg@ziepe.ca>,
	<kevin.tian@intel.com>, <andrew+netdev@lunn.ch>,
	<edumazet@google.com>
Subject: Re: [PATCH net-next v5 05/12] virtio_net: Query and set flow filter caps
Date: Mon, 20 Oct 2025 16:59:57 -0700	[thread overview]
Message-ID: <20251020165957.62a127eb@kernel.org> (raw)
In-Reply-To: <20251016050055.2301-6-danielj@nvidia.com>

On Thu, 16 Oct 2025 00:00:48 -0500 Daniel Jurgens wrote:
> +struct virtio_net_ff_selector {
> +	__u8 type;
> +	__u8 flags;
> +	__u8 reserved[2];
> +	__u8 length;
> +	__u8 reserved1[3];
> +	__u8 mask[];
> +};

> +/**
> + * struct virtio_net_ff_cap_mask_data - Supported selector mask formats
> + * @count: number of entries in @selectors
> + * @reserved: must be set to 0 by the driver and ignored by the device
> + * @selectors: array of supported selector descriptors
> + */
> +struct virtio_net_ff_cap_mask_data {
> +	__u8 count;
> +	__u8 reserved[7];
> +	struct virtio_net_ff_selector selectors[];
> +};

sparse complains:

  include/uapi/linux/virtio_net_ff.h:73:48: warning: array of flexible structures

which seems legit. Since only element 0 can reasonably be accessed
perhaps make selectors

	__u8 selectors[]; /* struct virtio_net_ff_selector */

?
-- 
pw-bot: cr

  reply	other threads:[~2025-10-20 23:59 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-10-16  5:00 [PATCH net-next v5 00/12] virtio_net: Add ethtool flow rules support Daniel Jurgens
2025-10-16  5:00 ` [PATCH net-next v5 01/12] virtio_pci: Remove supported_cap size build assert Daniel Jurgens
2025-10-16  5:00 ` [PATCH net-next v5 02/12] virtio: Add config_op for admin commands Daniel Jurgens
2025-10-16  5:00 ` [PATCH net-next v5 03/12] virtio: Expose generic device capability operations Daniel Jurgens
2025-10-16  5:00 ` [PATCH net-next v5 04/12] virtio: Expose object create and destroy API Daniel Jurgens
2025-10-16  5:00 ` [PATCH net-next v5 05/12] virtio_net: Query and set flow filter caps Daniel Jurgens
2025-10-20 23:59   ` Jakub Kicinski [this message]
2025-10-21 13:26     ` Dan Jurgens
2025-10-21 13:18   ` Michael S. Tsirkin
2025-10-21 13:38     ` Dan Jurgens
2025-10-16  5:00 ` [PATCH net-next v5 06/12] virtio_net: Create a FF group for ethtool steering Daniel Jurgens
2025-10-16  5:00 ` [PATCH net-next v5 07/12] virtio_net: Implement layer 2 ethtool flow rules Daniel Jurgens
2025-10-16  5:00 ` [PATCH net-next v5 08/12] virtio_net: Use existing classifier if possible Daniel Jurgens
2025-10-16  5:00 ` [PATCH net-next v5 09/12] virtio_net: Implement IPv4 ethtool flow rules Daniel Jurgens
2025-10-16  5:00 ` [PATCH net-next v5 10/12] virtio_net: Add support for IPv6 ethtool steering Daniel Jurgens
2025-10-16  5:00 ` [PATCH net-next v5 11/12] virtio_net: Add support for TCP and UDP ethtool rules Daniel Jurgens
2025-10-16  5:00 ` [PATCH net-next v5 12/12] virtio_net: Add get ethtool flow rules ops Daniel Jurgens

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