Re: [PATCH net-next v2 1/1] ppp: Fix KMSAN warning by initializing 2-byte header

[Jakub Kicinski]

On Tue, 25 Feb 2025 07:20:08 +0800 Jiayuan Chen wrote:
> I apologize for the mistake, I've investigated the original maintainer's
> user-space PPP implementation and libpcap's behavior, and found that
> initializing the first byte to 0 or 1 is necessary, it indicates
> direction, which is used in libpcap to distinguish between inbound and
> outbound traffic.
> For more details, please refer to the cover letter of my v3 patch.
> 
> https://lore.kernel.org/linux-ppp/20250222092556.274267-1-jiayuan.chen@xxxxxxxxx/T/#t

You can still use the htons() there, it's cleaner.