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Sat, 14 Aug 2021 02:50:18 +0000 Received: from MWHPR1001MB2351.namprd10.prod.outlook.com ([fe80::e81f:cf8e:6ad6:d24d]) by MWHPR1001MB2351.namprd10.prod.outlook.com ([fe80::e81f:cf8e:6ad6:d24d%3]) with mapi id 15.20.4415.019; Sat, 14 Aug 2021 02:50:18 +0000 From: Colin Foster To: colin.foster@in-advantage.com, andrew@lunn.ch, vivien.didelot@gmail.com, f.fainelli@gmail.com, olteanv@gmail.com, davem@davemloft.net, kuba@kernel.org, robh+dt@kernel.org, claudiu.manoil@nxp.com, alexandre.belloni@bootlin.com, UNGLinuxDriver@microchip.com, hkallweit1@gmail.com, linux@armlinux.org.uk Cc: netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [RFC PATCH v3 net-next 04/10] net: dsa: ocelot: felix: Remove requirement for PCS in felix devices Date: Fri, 13 Aug 2021 19:49:57 -0700 Message-Id: <20210814025003.2449143-5-colin.foster@in-advantage.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210814025003.2449143-1-colin.foster@in-advantage.com> References: <20210814025003.2449143-1-colin.foster@in-advantage.com> X-ClientProxiedBy: MW4P221CA0007.NAMP221.PROD.OUTLOOK.COM (2603:10b6:303:8b::12) To MWHPR1001MB2351.namprd10.prod.outlook.com (2603:10b6:301:35::37) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from localhost.localdomain (67.185.175.147) by MW4P221CA0007.NAMP221.PROD.OUTLOOK.COM (2603:10b6:303:8b::12) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4415.14 via Frontend Transport; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 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 X-OriginatorOrg: in-advantage.com X-MS-Exchange-CrossTenant-Network-Message-Id: a012fac0-e8a5-4d7b-f83c-08d95ece3fed X-MS-Exchange-CrossTenant-AuthSource: MWHPR1001MB2351.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 14 Aug 2021 02:50:18.0538 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 48e842ca-fbd8-4633-a79d-0c955a7d3aae X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: 72xN17mfP/7jHXkiLMLbMeN39nB9id01Xxd9MfDIkqUFiEaF6cvwp+cqSVIpSl5GrqbHczsEGIPTv8BSluQyR3MNgEdGkcpfOIAa2+hF8+g= X-MS-Exchange-Transport-CrossTenantHeadersStamped: MWHPR10MB2030 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org X-Patchwork-State: RFC Existing felix devices all have an initialized pcs array. Future devices might not, so running a NULL check on the array before dereferencing it will allow those future drivers to not crash at this point Signed-off-by: Colin Foster --- drivers/net/dsa/ocelot/felix.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/dsa/ocelot/felix.c b/drivers/net/dsa/ocelot/felix.c index ce607fbaaa3a..74ae322b2126 100644 --- a/drivers/net/dsa/ocelot/felix.c +++ b/drivers/net/dsa/ocelot/felix.c @@ -852,7 +852,7 @@ static void felix_phylink_mac_config(struct dsa_switch *ds, int port, struct felix *felix = ocelot_to_felix(ocelot); struct dsa_port *dp = dsa_to_port(ds, port); - if (felix->pcs[port]) + if (felix->pcs && felix->pcs[port]) phylink_set_pcs(dp->pl, &felix->pcs[port]->pcs); }