From: Stephen Hemminger <stephen@networkplumber.org>
To: Bing Zhao <bingz@nvidia.com>
Cc: <dev@dpdk.org>, Frank Dressler <frank@dressler.pro>,
Thomas Monjalon <thomas@monjalon.net>,
David Marchand <david.marchand@redhat.com>,
Kevin Traynor <ktraynor@redhat.com>
Subject: Re: [PATCH v2] net/af_packet: fix build with old kernel headers
Date: Tue, 10 Nov 2026 08:51:32 -0800 [thread overview]
Message-ID: <20261110085132.67619c96@phoenix.local> (raw)
In-Reply-To: <20261109154730.146345-1-bingz@nvidia.com>
On Mon, 9 Nov 2026 17:47:30 +0200
Bing Zhao <bingz@nvidia.com> wrote:
> The PACKET_IGNORE_OUTGOING socket option is used unconditionally,
> but it was only added to the uapi headers in Linux 4.20. The build
> fails on distributions shipping older kernel headers, like RHEL 8
> (kernel-headers 4.18.0):
>
> rte_eth_af_packet.c:1057:41: error: 'PACKET_IGNORE_OUTGOING'
> undeclared (first use in this function)
>
> DPDK requires Linux 5.4, so the driver does not need to support older
> kernels. Check for the symbol at configure time and skip the driver
> when the headers lack it, instead of failing the whole build.
>
> Fixes: 3db7aa7868b2 ("net/af_packet: use kernel to filter single-queue Rx")
>
> Signed-off-by: Bing Zhao <bingz@nvidia.com>
> ---
I liked the v1 better, looks simplest
prev parent reply other threads:[~2026-11-10 16:51 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-06 14:27 [PATCH] net/af_packet: fix build with old kernel headers Bing Zhao
2026-11-06 14:46 ` Thomas Monjalon
2026-11-06 16:06 ` Frank Dressler
2026-11-07 11:11 ` Frank Dressler
2026-11-08 16:22 ` Stephen Hemminger
2026-11-08 18:51 ` Frank Dressler
2026-11-08 20:29 ` Stephen Hemminger
2026-11-09 15:47 ` [PATCH v2] " Bing Zhao
2026-11-09 17:47 ` Stephen Hemminger
2026-11-10 10:39 ` Thomas Monjalon
2026-11-10 12:52 ` Frank Dressler
2026-11-10 13:56 ` Thomas Monjalon
2026-11-10 14:23 ` Frank Dressler
2026-11-10 16:51 ` Stephen Hemminger [this message]
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