linux-kernel - [PATCH] bus: imx-weim: Remove open coded "ranges" parsing

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-next>] [day] [month] [year] [list]

Message-Id: <20230201215854.245717-1-robh@kernel.org>
Date:   Wed,  1 Feb 2023 15:58:54 -0600
From:   Rob Herring <robh@...nel.org>
To:     Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH] bus: imx-weim: Remove open coded "ranges" parsing

"ranges" is a standard property and we have common helper functions for
parsing it, so let's use them.

Signed-off-by: Rob Herring <robh@...nel.org>
---
Compile tested only!
---
 drivers/bus/imx-weim.c | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

diff --git a/drivers/bus/imx-weim.c b/drivers/bus/imx-weim.c
index 828c66bbaa67..bb9d1f5ed73b 100644
--- a/drivers/bus/imx-weim.c
+++ b/drivers/bus/imx-weim.c
@@ -10,6 +10,7 @@
 #include <linux/module.h>
 #include <linux/clk.h>
 #include <linux/io.h>
+#include <linux/of_address.h>
 #include <linux/of_device.h>
 #include <linux/mfd/syscon.h>
 #include <linux/mfd/syscon/imx6q-iomuxc-gpr.h>
@@ -86,8 +87,8 @@ MODULE_DEVICE_TABLE(of, weim_id_table);
 static int imx_weim_gpr_setup(struct platform_device *pdev)
 {
 	struct device_node *np = pdev->dev.of_node;
-	struct property *prop;
-	const __be32 *p;
+	struct of_range_parser parser;
+	struct of_range range;
 	struct regmap *gpr;
 	u32 gprvals[4] = {
 		05,	/* CS0(128M) CS1(0M)  CS2(0M)  CS3(0M)  */
@@ -106,13 +107,13 @@ static int imx_weim_gpr_setup(struct platform_device *pdev)
 		return 0;
 	}
 
-	of_property_for_each_u32(np, "ranges", prop, p, val) {
-		if (i % 4 == 0) {
-			cs = val;
-		} else if (i % 4 == 3 && val) {
-			val = (val / SZ_32M) | 1;
-			gprval |= val << cs * 3;
-		}
+	if (of_range_parser_init(&parser, np))
+		goto err;
+
+	for_each_of_range(&parser, &range) {
+		cs = range.bus_addr >> 32;
+		val = (range.size / SZ_32M) | 1;
+		gprval |= val << cs * 3;
 		i++;
 	}
 
-- 
2.39.0