linux-kernel - [PATCH 1/9] dmaengine: stm32-dmamux: simplify getting .driver

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20210920090522.23784-2-wsa+renesas@sang-engineering.com>
Date:   Mon, 20 Sep 2021 11:05:13 +0200
From:   Wolfram Sang <wsa+renesas@...g-engineering.com>
To:     linux-kernel@...r.kernel.org
Cc:     linux-renesas-soc@...r.kernel.org,
        Wolfram Sang <wsa+renesas@...g-engineering.com>,
        Vinod Koul <vkoul@...nel.org>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        dmaengine@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org
Subject: [PATCH 1/9] dmaengine: stm32-dmamux: simplify getting .driver_data

We should get 'driver_data' from 'struct device' directly. Going via
platform_device is an unneeded step back and forth.

Signed-off-by: Wolfram Sang <wsa+renesas@...g-engineering.com>
---

Build tested only. buildbot is happy.

 drivers/dma/stm32-dmamux.c | 14 +++++---------
 1 file changed, 5 insertions(+), 9 deletions(-)

diff --git a/drivers/dma/stm32-dmamux.c b/drivers/dma/stm32-dmamux.c
index a42164389ebc..175f06749df6 100644
--- a/drivers/dma/stm32-dmamux.c
+++ b/drivers/dma/stm32-dmamux.c
@@ -305,8 +305,7 @@ static int stm32_dmamux_probe(struct platform_device *pdev)
 #ifdef CONFIG_PM
 static int stm32_dmamux_runtime_suspend(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct stm32_dmamux_data *stm32_dmamux = platform_get_drvdata(pdev);
+	struct stm32_dmamux_data *stm32_dmamux = dev_get_drvdata(dev);
 
 	clk_disable_unprepare(stm32_dmamux->clk);
 
@@ -315,13 +314,12 @@ static int stm32_dmamux_runtime_suspend(struct device *dev)
 
 static int stm32_dmamux_runtime_resume(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct stm32_dmamux_data *stm32_dmamux = platform_get_drvdata(pdev);
+	struct stm32_dmamux_data *stm32_dmamux = dev_get_drvdata(dev);
 	int ret;
 
 	ret = clk_prepare_enable(stm32_dmamux->clk);
 	if (ret) {
-		dev_err(&pdev->dev, "failed to prepare_enable clock\n");
+		dev_err(dev, "failed to prepare_enable clock\n");
 		return ret;
 	}
 
@@ -332,8 +330,7 @@ static int stm32_dmamux_runtime_resume(struct device *dev)
 #ifdef CONFIG_PM_SLEEP
 static int stm32_dmamux_suspend(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct stm32_dmamux_data *stm32_dmamux = platform_get_drvdata(pdev);
+	struct stm32_dmamux_data *stm32_dmamux = dev_get_drvdata(dev);
 	int i, ret;
 
 	ret = pm_runtime_resume_and_get(dev);
@@ -353,8 +350,7 @@ static int stm32_dmamux_suspend(struct device *dev)
 
 static int stm32_dmamux_resume(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct stm32_dmamux_data *stm32_dmamux = platform_get_drvdata(pdev);
+	struct stm32_dmamux_data *stm32_dmamux = dev_get_drvdata(dev);
 	int i, ret;
 
 	ret = pm_runtime_force_resume(dev);
-- 
2.30.2