netdev - Re: [PATCH net] nfp: flower: fix port metadata conversion bug

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Date:   Sat, 28 Jul 2018 14:28:06 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     jakub.kicinski@...ronome.com
Cc:     oss-drivers@...ronome.com, netdev@...r.kernel.org,
        john.hurley@...ronome.com
Subject: Re: [PATCH net] nfp: flower: fix port metadata conversion bug

From: Jakub Kicinski <jakub.kicinski@...ronome.com>
Date: Fri, 27 Jul 2018 20:56:52 -0700

> From: John Hurley <john.hurley@...ronome.com>
> 
> Function nfp_flower_repr_get_type_and_port expects an enum nfp_repr_type
> return value but, if the repr type is unknown, returns a value of type
> enum nfp_flower_cmsg_port_type.  This means that if FW encodes the port
> ID in a way the driver does not understand instead of dropping the frame
> driver may attribute it to a physical port (uplink) provided the port
> number is less than physical port count.
> 
> Fix this and ensure a net_device of NULL is returned if the repr can not
> be determined.
> 
> Fixes: 1025351a88a4 ("nfp: add flower app")
> Signed-off-by: John Hurley <john.hurley@...ronome.com>
> Signed-off-by: Jakub Kicinski <jakub.kicinski@...ronome.com>
> ---
> This is low impact and unlikely, but also fix is trivial so either
> net or net-next works.

Applied to 'net', thanks.