netdev - Re: [PATCH net] net: handle ARPHRD_PIMREG in dev_is_mac_header

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Date:   Tue, 15 Mar 2022 10:15:34 +0100
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Nicolas Dichtel <nicolas.dichtel@...nd.com>
Cc:     ast@...nel.org, daniel@...earbox.net, davem@...emloft.net,
        kuba@...nel.org, netdev@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCH net] net: handle ARPHRD_PIMREG in dev_is_mac_header_xmit()

On Tue, Mar 15, 2022 at 10:01:02AM +0100, Nicolas Dichtel wrote:
> This kind of interface doesn't have a mac header. This patch fixes
> bpf_redirect() to a PIM interface.
> 
> Fixes: 27b29f63058d ("bpf: add bpf_redirect() helper")
> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@...nd.com>
> ---
>  include/linux/if_arp.h | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/include/linux/if_arp.h b/include/linux/if_arp.h
> index b712217f7030..1ed52441972f 100644
> --- a/include/linux/if_arp.h
> +++ b/include/linux/if_arp.h
> @@ -52,6 +52,7 @@ static inline bool dev_is_mac_header_xmit(const struct net_device *dev)
>  	case ARPHRD_VOID:
>  	case ARPHRD_NONE:
>  	case ARPHRD_RAWIP:
> +	case ARPHRD_PIMREG:
>  		return false;
>  	default:
>  		return true;
> -- 
> 2.33.0
> 

<formletter>

This is not the correct way to submit patches for inclusion in the
stable kernel tree.  Please read:
    https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html
for how to do this properly.

</formletter>