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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , linux-arm-kernel@lists.infradead.org (moderated list:ARM/CAVIUM THUNDER NETWORK DRIVER), linux-kernel@vger.kernel.org (open list) Subject: [PATCHv2 net-next 1/2] net: thunder_bgx: check for MAC probe defer Date: Thu, 4 Sep 2025 14:32:27 -0700 Message-ID: <20250904213228.8866-2-rosenp@gmail.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20250904213228.8866-1-rosenp@gmail.com> References: <20250904213228.8866-1-rosenp@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" of_get_mac_address supports NVMEM, which can load after the driver. Check for it and defer in such a case. Signed-off-by: Rosen Penev Reviewed-by: Andrew Lunn --- drivers/net/ethernet/cavium/thunder/thunder_bgx.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c b/drivers/ne= t/ethernet/cavium/thunder/thunder_bgx.c index 9efb60842ad1..a68dccb7c2da 100644 --- a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c +++ b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c @@ -1471,6 +1471,7 @@ static int bgx_init_of_phy(struct bgx *bgx) struct fwnode_handle *fwn; struct device_node *node =3D NULL; u8 lmac =3D 0; + int err; =20 device_for_each_child_node(&bgx->pdev->dev, fwn) { struct phy_device *pd; @@ -1483,7 +1484,9 @@ static int bgx_init_of_phy(struct bgx *bgx) if (!node) break; =20 - of_get_mac_address(node, bgx->lmac[lmac].mac); + err =3D of_get_mac_address(node, bgx->lmac[lmac].mac); + if (err =3D=3D -EPROBE_DEFER) + goto defer; =20 SET_NETDEV_DEV(bgx->lmac[lmac].netdev, &bgx->pdev->dev); bgx->lmac[lmac].lmacid =3D lmac; --=20 2.51.0