netdev - Re: [PATCH bpf-next] samples/bpf: xdp1 and xdp2 reduce XDPBUFSIZE to 60

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Date: Wed, 31 May 2023 11:10:21 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Jesper Dangaard Brouer <brouer@...hat.com>
Cc: ttoukan.linux@...il.com, borkmann@...earbox.net, ast@...nel.org,
 andrii.nakryiko@...il.com, bpf@...r.kernel.org, tariqt@...dia.com,
 gal@...dia.com, lorenzo@...nel.org, netdev@...r.kernel.org,
 andrew.gospodarek@...adcom.com
Subject: Re: [PATCH bpf-next] samples/bpf: xdp1 and xdp2 reduce XDPBUFSIZE to 60

Hello:

This patch was applied to bpf/bpf-next.git (master)
by Daniel Borkmann <daniel@...earbox.net>:

On Tue, 30 May 2023 16:30:41 +0200 you wrote:
> Default samples/pktgen scripts send 60 byte packets as hardware
> adds 4-bytes FCS checksum, which fulfils minimum Ethernet 64 bytes
> frame size.
> 
> XDP layer will not necessary have access to the 4-bytes FCS checksum.
> 
> This leads to bpf_xdp_load_bytes() failing as it tries to copy
> 64-bytes from an XDP packet that only have 60-bytes available.
> 
> [...]

Here is the summary with links:
  - [bpf-next] samples/bpf: xdp1 and xdp2 reduce XDPBUFSIZE to 60
    https://git.kernel.org/bpf/bpf-next/c/60548b825b08

You are awesome, thank you!
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