Re: [PATCH v3 bpf] bpf, test_run: fix &xdp_frame misplacement for LIVE_FRAMES

[Martin KaFai Lau]

On 2/15/23 7:21 AM, Alexander Lobakin wrote:
>   /* The maximum permissible size is: PAGE_SIZE - sizeof(struct xdp_page_head) -
> - * sizeof(struct skb_shared_info) - XDP_PACKET_HEADROOM = 3368 bytes
> + * sizeof(struct skb_shared_info) - XDP_PACKET_HEADROOM = 3408 bytes
>    */
> -#define MAX_PKT_SIZE 3368
> +#define MAX_PKT_SIZE 3408

s390 has a different cache line size:

https://lore.kernel.org/all/20230128000650.1516334-11-iii@xxxxxxxxxxxxx/

The above s390 fix is in bpf-next. It is better to target this patch for 
bpf-next also such that the CI can test it in s390.