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Received: from AM9PR04MB8585.eurprd04.prod.outlook.com (2603:10a6:20b:438::13) by VI1PR04MB7182.eurprd04.prod.outlook.com (2603:10a6:800:121::7) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9870.20; Thu, 30 Apr 2026 11:07:25 +0000 Received: from AM9PR04MB8585.eurprd04.prod.outlook.com ([fe80::f010:fca8:7ef:62f4]) by AM9PR04MB8585.eurprd04.prod.outlook.com ([fe80::f010:fca8:7ef:62f4%4]) with mapi id 15.20.9846.025; Thu, 30 Apr 2026 11:07:25 +0000 From: Vladimir Oltean To: linux-phy@lists.infradead.org Cc: Vinod Koul , Neil Armstrong , dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, linux-can@vger.kernel.org, linux-gpio@vger.kernel.org, linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-pci@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-riscv@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-scsi@vger.kernel.org, linux-sunxi@lists.linux.dev, linux-tegra@vger.kernel.org, linux-usb@vger.kernel.org, netdev@vger.kernel.org, spacemit@lists.linux.dev, UNGLinuxDriver@microchip.com Subject: [PATCH v7 phy-next 16/27] phy: make phy_get_mode(), phy_(get|set)_bus_width() NULL tolerant Date: Thu, 30 Apr 2026 14:06:41 +0300 Message-Id: <20260430110652.558622-17-vladimir.oltean@nxp.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260430110652.558622-1-vladimir.oltean@nxp.com> References: <20260430110652.558622-1-vladimir.oltean@nxp.com> Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: AM8P251CA0030.EURP251.PROD.OUTLOOK.COM (2603:10a6:20b:21b::35) To AM9PR04MB8585.eurprd04.prod.outlook.com (2603:10a6:20b:438::13) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: AM9PR04MB8585:EE_|VI1PR04MB7182:EE_ X-MS-Office365-Filtering-Correlation-Id: ef78419a-82de-4b78-9d68-08dea6a8a8be X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|10070799003|7416014|376014|366016|19092799006|1800799024|18002099003|56012099003|22082099003; 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Most PHY functions do this, only the formerly static inline attribute dereferences did not. Signed-off-by: Vladimir Oltean --- v2->v7: none v1->v2: patch is new --- drivers/phy/phy-core.c | 9 ++++++++- include/linux/phy/phy.h | 2 ++ 2 files changed, 10 insertions(+), 1 deletion(-) diff --git a/drivers/phy/phy-core.c b/drivers/phy/phy-core.c index a1aff00fba7c..0d0be494cfd7 100644 --- a/drivers/phy/phy-core.c +++ b/drivers/phy/phy-core.c @@ -624,19 +624,26 @@ EXPORT_SYMBOL_GPL(phy_validate); enum phy_mode phy_get_mode(struct phy *phy) { + if (!phy) + return PHY_MODE_INVALID; + return phy->attrs.mode; } EXPORT_SYMBOL_GPL(phy_get_mode); int phy_get_bus_width(struct phy *phy) { + if (!phy) + return 0; + return phy->attrs.bus_width; } EXPORT_SYMBOL_GPL(phy_get_bus_width); void phy_set_bus_width(struct phy *phy, int bus_width) { - phy->attrs.bus_width = bus_width; + if (phy) + phy->attrs.bus_width = bus_width; } EXPORT_SYMBOL_GPL(phy_set_bus_width); diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h index f208edd25afe..a7e2432ca1ae 100644 --- a/include/linux/phy/phy.h +++ b/include/linux/phy/phy.h @@ -248,6 +248,8 @@ static inline int phy_notify_state(struct phy *phy, union phy_notify state) static inline int phy_get_bus_width(struct phy *phy) { + if (!phy) + return 0; return -ENOSYS; } -- 2.34.1