Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Date:   Thu, 7 Jul 2022 17:53:07 -0700
From:   Jakub Kicinski <kuba@kernel.org>
To:     Ratheesh Kannoth <rkannoth@marvell.com>
Cc:     <netdev@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        <sgoutham@marvell.com>, <davem@davemloft.net>,
        <edumazet@google.com>, <pabeni@redhat.com>
Subject: Re: [net-next PATCH V3 02/12] octeontx2-af: Exact match support
Message-ID: <20220707175307.4e83ad48@kernel.org>
In-Reply-To: <20220707073353.2752279-3-rkannoth@marvell.com>
References: <20220707073353.2752279-1-rkannoth@marvell.com>
        <20220707073353.2752279-3-rkannoth@marvell.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Precedence: bulk

On Thu, 7 Jul 2022 13:03:43 +0530 Ratheesh Kannoth wrote:
> CN10KB silicon has support for exact match table. This table
> can be used to match maimum 64 bit value of KPU parsed output.
> Hit/non hit in exact match table can be used as a KEX key to
> NPC mcam.
> 
> This patch makes use of Exact match table to increase number of
> DMAC filters supported. NPC  mcam is no more need for each of these
> DMAC entries as will be populated in Exact match table.
> 
> This patch implements following
> 
> 1. Initialization of exact match table only for CN10KB.
> 2. Add/del/update interface function for exact match table.
> 
> Signed-off-by: Ratheesh Kannoth <rkannoth@marvell.com>

Build with C=1 (i.e. with the sparse checker) we get:

drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_hash.c:558:21: warning: dubious: x & !y

could you figure out which one it is and if it can be muted?