From 95099d4622f8cb224d94e314c7a8e0df60b13f87 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Sat, 09 Dec 2023 08:38:01 +0000
Subject: [PATCH] enable docker ppp

---
 kernel/drivers/char/hw_random/st-rng.c |   16 +++++-----------
 1 files changed, 5 insertions(+), 11 deletions(-)

diff --git a/kernel/drivers/char/hw_random/st-rng.c b/kernel/drivers/char/hw_random/st-rng.c
index 938ec10..15ba1e6 100644
--- a/kernel/drivers/char/hw_random/st-rng.c
+++ b/kernel/drivers/char/hw_random/st-rng.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * ST Random Number Generator Driver ST's Platforms
  *
@@ -5,16 +6,13 @@
  *         Lee Jones <lee.jones@linaro.org>
  *
  * Copyright (C) 2015 STMicroelectronics (R&D) Limited
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/clk.h>
 #include <linux/delay.h>
 #include <linux/hw_random.h>
 #include <linux/io.h>
+#include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/of.h>
 #include <linux/platform_device.h>
@@ -75,7 +73,6 @@
 static int st_rng_probe(struct platform_device *pdev)
 {
 	struct st_rng_data *ddata;
-	struct resource *res;
 	struct clk *clk;
 	void __iomem *base;
 	int ret;
@@ -84,8 +81,7 @@
 	if (!ddata)
 		return -ENOMEM;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	base = devm_ioremap_resource(&pdev->dev, res);
+	base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(base))
 		return PTR_ERR(base);
 
@@ -105,7 +101,7 @@
 
 	dev_set_drvdata(&pdev->dev, ddata);
 
-	ret = hwrng_register(&ddata->ops);
+	ret = devm_hwrng_register(&pdev->dev, &ddata->ops);
 	if (ret) {
 		dev_err(&pdev->dev, "Failed to register HW RNG\n");
 		clk_disable_unprepare(clk);
@@ -121,14 +117,12 @@
 {
 	struct st_rng_data *ddata = dev_get_drvdata(&pdev->dev);
 
-	hwrng_unregister(&ddata->ops);
-
 	clk_disable_unprepare(ddata->clk);
 
 	return 0;
 }
 
-static const struct of_device_id st_rng_match[] = {
+static const struct of_device_id st_rng_match[] __maybe_unused = {
 	{ .compatible = "st,rng" },
 	{},
 };

--
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