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[5.12.227.87]) by smtp.gmail.com with ESMTPSA id z9sm2574898eju.123.2021.01.07.07.37.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 07 Jan 2021 07:37:44 -0800 (PST) From: Ioana Ciornei To: davem@davemloft.net, kuba@kernel.org, netdev@vger.kernel.org Cc: laurentiu.tudor@nxp.com, Ioana Ciornei Subject: [PATCH 4/6] dpaa2-eth: retry the probe when the MAC is not yet discovered on the bus Date: Thu, 7 Jan 2021 17:36:36 +0200 Message-Id: <20210107153638.753942-5-ciorneiioana@gmail.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210107153638.753942-1-ciorneiioana@gmail.com> References: <20210107153638.753942-1-ciorneiioana@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org From: Ioana Ciornei The fsl_mc_get_endpoint() function now returns -EPROBE_DEFER when the dpmac device was not yet discovered by the fsl-mc bus. When this happens, pass the error code up so that we can retry the probe at a later time. Signed-off-by: Ioana Ciornei --- drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c index f3f53e36aa00..3297e390476b 100644 --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c @@ -4042,6 +4042,10 @@ static int dpaa2_eth_connect_mac(struct dpaa2_eth_priv *priv) dpni_dev = to_fsl_mc_device(priv->net_dev->dev.parent); dpmac_dev = fsl_mc_get_endpoint(dpni_dev); + + if (PTR_ERR(dpmac_dev) == -EPROBE_DEFER) + return PTR_ERR(dpmac_dev); + if (IS_ERR_OR_NULL(dpmac_dev) || dpmac_dev->dev.type != &fsl_mc_bus_dpmac_type) return 0;