linux-kernel - [PATCH 59/61] watchdog: simplify getting .drvdata

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]

Date:   Thu, 19 Apr 2018 16:06:29 +0200
From:   Wolfram Sang <wsa+renesas@...g-engineering.com>
To:     linux-kernel@...r.kernel.org
Cc:     linux-renesas-soc@...r.kernel.org, kernel-janitors@...r.kernel.org,
        Wolfram Sang <wsa+renesas@...g-engineering.com>,
        Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Guenter Roeck <linux@...ck-us.net>,
        Michal Simek <michal.simek@...inx.com>,
        linux-watchdog@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: [PATCH 59/61] watchdog: simplify getting .drvdata

We should get drvdata 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. Please apply individually.

 drivers/watchdog/cadence_wdt.c   | 6 ++----
 drivers/watchdog/of_xilinx_wdt.c | 6 ++----
 drivers/watchdog/wdat_wdt.c      | 6 ++----
 3 files changed, 6 insertions(+), 12 deletions(-)

diff --git a/drivers/watchdog/cadence_wdt.c b/drivers/watchdog/cadence_wdt.c
index 3ec1f418837d..c3924356d173 100644
--- a/drivers/watchdog/cadence_wdt.c
+++ b/drivers/watchdog/cadence_wdt.c
@@ -418,8 +418,7 @@ static void cdns_wdt_shutdown(struct platform_device *pdev)
  */
 static int __maybe_unused cdns_wdt_suspend(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct cdns_wdt *wdt = platform_get_drvdata(pdev);
+	struct cdns_wdt *wdt = dev_get_drvdata(dev);
 
 	if (watchdog_active(&wdt->cdns_wdt_device)) {
 		cdns_wdt_stop(&wdt->cdns_wdt_device);
@@ -438,8 +437,7 @@ static int __maybe_unused cdns_wdt_suspend(struct device *dev)
 static int __maybe_unused cdns_wdt_resume(struct device *dev)
 {
 	int ret;
-	struct platform_device *pdev = to_platform_device(dev);
-	struct cdns_wdt *wdt = platform_get_drvdata(pdev);
+	struct cdns_wdt *wdt = dev_get_drvdata(dev);
 
 	if (watchdog_active(&wdt->cdns_wdt_device)) {
 		ret = clk_prepare_enable(wdt->clk);
diff --git a/drivers/watchdog/of_xilinx_wdt.c b/drivers/watchdog/of_xilinx_wdt.c
index 4acbe05e27bb..d3f7eb046678 100644
--- a/drivers/watchdog/of_xilinx_wdt.c
+++ b/drivers/watchdog/of_xilinx_wdt.c
@@ -268,8 +268,7 @@ static int xwdt_remove(struct platform_device *pdev)
  */
 static int __maybe_unused xwdt_suspend(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct xwdt_device *xdev = platform_get_drvdata(pdev);
+	struct xwdt_device *xdev = dev_get_drvdata(dev);
 
 	if (watchdog_active(&xdev->xilinx_wdt_wdd))
 		xilinx_wdt_stop(&xdev->xilinx_wdt_wdd);
@@ -285,8 +284,7 @@ static int __maybe_unused xwdt_suspend(struct device *dev)
  */
 static int __maybe_unused xwdt_resume(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct xwdt_device *xdev = platform_get_drvdata(pdev);
+	struct xwdt_device *xdev = dev_get_drvdata(dev);
 	int ret = 0;
 
 	if (watchdog_active(&xdev->xilinx_wdt_wdd))
diff --git a/drivers/watchdog/wdat_wdt.c b/drivers/watchdog/wdat_wdt.c
index 0da9943d405f..56ad19608a9b 100644
--- a/drivers/watchdog/wdat_wdt.c
+++ b/drivers/watchdog/wdat_wdt.c
@@ -447,8 +447,7 @@ static int wdat_wdt_probe(struct platform_device *pdev)
 #ifdef CONFIG_PM_SLEEP
 static int wdat_wdt_suspend_noirq(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct wdat_wdt *wdat = platform_get_drvdata(pdev);
+	struct wdat_wdt *wdat = dev_get_drvdata(dev);
 	int ret;
 
 	if (!watchdog_active(&wdat->wdd))
@@ -475,8 +474,7 @@ static int wdat_wdt_suspend_noirq(struct device *dev)
 
 static int wdat_wdt_resume_noirq(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct wdat_wdt *wdat = platform_get_drvdata(pdev);
+	struct wdat_wdt *wdat = dev_get_drvdata(dev);
 	int ret;
 
 	if (!watchdog_active(&wdat->wdd))
-- 
2.11.0