linux-kernel - [PATCH v2 2/3] regmap: mmio: Use swabXX

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: <20220831212744.56435-2-andriy.shevchenko@linux.intel.com>
Date:   Thu,  1 Sep 2022 00:27:43 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Mark Brown <broonie@...nel.org>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Linus Walleij <linus.walleij@...aro.org>
Subject: [PATCH v2 2/3] regmap: mmio: Use swabXX_array() helpers

Since we have a few helpers to swab elements of a given size in an array
use them instead of open coded variants.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
v2: no changes
 drivers/base/regmap/regmap-mmio.c | 20 ++++----------------
 1 file changed, 4 insertions(+), 16 deletions(-)

diff --git a/drivers/base/regmap/regmap-mmio.c b/drivers/base/regmap/regmap-mmio.c
index e8d2675463ac..66f92caa2fa2 100644
--- a/drivers/base/regmap/regmap-mmio.c
+++ b/drivers/base/regmap/regmap-mmio.c
@@ -10,6 +10,7 @@
 #include <linux/module.h>
 #include <linux/regmap.h>
 #include <linux/slab.h>
+#include <linux/swab.h>
 
 #include "internal.h"
 
@@ -345,7 +346,6 @@ static int regmap_mmio_noinc_read(void *context, unsigned int reg,
 {
 	struct regmap_mmio_context *ctx = context;
 	int ret = 0;
-	int i;
 
 	if (!IS_ERR(ctx->clk)) {
 		ret = clk_enable(ctx->clk);
@@ -382,27 +382,15 @@ static int regmap_mmio_noinc_read(void *context, unsigned int reg,
 	if (ctx->big_endian && (ctx->val_bytes > 1)) {
 		switch (ctx->val_bytes) {
 		case 2:
-		{
-			u16 *valp = (u16 *)val;
-			for (i = 0; i < val_count; i++)
-				valp[i] = swab16(valp[i]);
+			swab16_array(val, val_count);
 			break;
-		}
 		case 4:
-		{
-			u32 *valp = (u32 *)val;
-			for (i = 0; i < val_count; i++)
-				valp[i] = swab32(valp[i]);
+			swab32_array(val, val_count);
 			break;
-		}
 #ifdef CONFIG_64BIT
 		case 8:
-		{
-			u64 *valp = (u64 *)val;
-			for (i = 0; i < val_count; i++)
-				valp[i] = swab64(valp[i]);
+			swab64_array(val, val_count);
 			break;
-		}
 #endif
 		default:
 			ret = -EINVAL;
-- 
2.35.1