On Mon, 9 Nov 2026 17:47:30 +0200
Bing Zhao <[email protected]> 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 <[email protected]>
> ---
I liked the v1 better, looks simplest
