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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman , Russell King , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Frank Wunderlich , Chad Monroe , Cezary Wilmanski , Liang Xu , "Benny (Ying-Tsan) Weng" , Jose Maria Verdu Munoz , Avinash Jayaraman , John Crispin Subject: Re: [PATCH net-next v6 1/4] net: dsa: add driver-private pointer to struct dsa_bridge Message-ID: <20260323161242.52u35huiot3khq5w@skbuf> References: <4ff5b936b1f4ad31ffe132aaef798d247a8ac812.1774136876.git.daniel@makrotopia.org> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4ff5b936b1f4ad31ffe132aaef798d247a8ac812.1774136876.git.daniel@makrotopia.org> On Sun, Mar 22, 2026 at 12:18:58AM +0000, Daniel Golle wrote: > When a DSA driver offloads a bridge to firmware, it typically receives a > firmware-assigned bridge identifier (e.g. a FID) that must be stored and > retrieved by subsequent operations. Without a place to store this in the > DSA core's bridge structure, drivers must maintain a parallel list of > bridge objects and search it on every join, leave, and FDB operation. Why list? What's wrong with a driver-level array for lookup? The bridge.num is guaranteed to be between 1 and ds->max_num_bridges.