netdev - Re: [PATCH v2 1/2] nfp: flower: Fix a potential leak in nfp_tunnel_add_shared

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Message-ID: <20220211165356.1927a81b@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com>
Date:   Fri, 11 Feb 2022 16:53:56 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     Christophe JAILLET <christophe.jaillet@...adoo.fr>
Cc:     Simon Horman <simon.horman@...igine.com>,
        "David S. Miller" <davem@...emloft.net>,
        John Hurley <john.hurley@...ronome.com>,
        linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
        oss-drivers@...igine.com, netdev@...r.kernel.org
Subject: Re: [PATCH v2 1/2] nfp: flower: Fix a potential leak in
 nfp_tunnel_add_shared_mac()

On Thu, 10 Feb 2022 23:34:52 +0100 Christophe JAILLET wrote:
> ida_simple_get() returns an id between min (0) and max (NFP_MAX_MAC_INDEX)
> inclusive.
> So NFP_MAX_MAC_INDEX (0xff) is a valid id.
> 
> In order for the error handling path to work correctly, the 'invalid'
> value for 'ida_idx' should not be in the 0..NFP_MAX_MAC_INDEX range,
> inclusive.
> 
> So set it to -1.
> 
> Fixes: 20cce8865098 ("nfp: flower: enable MAC address sharing for offloadable devs")
> Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>

This patch is a fix and the other one is refactoring. They can't be
in the same series because they need to go to different trees. Please
repost the former with [PATCH net] and ~one week later the latter with
[PATCH net-next].