linux-kernel - [PATCH v3 4/4] pinctrl: st: Switch to use regmap_field_test

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: <180eef6617d.e8980cca60760.7125525107711306420@zohomail.com>
Date:   Sun, 22 May 2022 20:29:25 -0700
From:   Li Chen <lchen.firstlove@...omail.com>
To:     "Mark Brown" <broonie@...nel.org>,
        "linux-kernel" <linux-kernel@...r.kernel.org>,
        "Greg Kroah-Hartman" <gregkh@...uxfoundation.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        "linux-gpio" <linux-gpio@...r.kernel.org>,
        "Linus Walleij" <linus.walleij@...aro.org>,
        "linux-arm-kernel" <linux-arm-kernel@...ts.infradead.org>,
        "Patrice Chotard" <patrice.chotard@...s.st.com>,
        "linux-sunxi" <linux-sunxi@...ts.linux.dev>,
        "Liam Girdwood" <lgirdwood@...il.com>,
        "Jaroslav Kysela" <perex@...ex.cz>,
        "Takashi Iwai" <tiwai@...e.com>, "Chen-Yu Tsai" <wens@...e.org>,
        "Jernej Skrabec" <jernej.skrabec@...il.com>,
        "Samuel Holland" <samuel@...lland.org>,
        "Philipp Zabel" <p.zabel@...gutronix.de>
Subject: [PATCH v3 4/4] pinctrl: st: Switch to use regmap_field_test_bits

From: Li Chen <lchen@...arella.com>

Appropriately change calls to regmap_field_read() with
regmap_field_test_bits() for improved readability.

Reported-by: kernel test robot <lkp@...el.com>
Signed-off-by: Li Chen <lchen@...arella.com>
---
 drivers/pinctrl/pinctrl-st.c | 23 +++++++++--------------
 1 file changed, 9 insertions(+), 14 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-st.c b/drivers/pinctrl/pinctrl-st.c
index 0fea71fd9a00..198b4a9d263b 100644
--- a/drivers/pinctrl/pinctrl-st.c
+++ b/drivers/pinctrl/pinctrl-st.c
@@ -573,23 +573,18 @@ static void st_pinconf_set_retime_dedicated(struct st_pinctrl *info,
 static void st_pinconf_get_direction(struct st_pio_control *pc,
 	int pin, unsigned long *config)
 {
-	unsigned int oe_value, pu_value, od_value;
-
 	if (pc->oe) {
-		regmap_field_read(pc->oe, &oe_value);
-		if (oe_value & BIT(pin))
+		if (regmap_field_test_bits(pc->oe, BIT(pin)))
 			ST_PINCONF_PACK_OE(*config);
 	}
 
 	if (pc->pu) {
-		regmap_field_read(pc->pu, &pu_value);
-		if (pu_value & BIT(pin))
+		if (regmap_field_test_bits(pc->pu, BIT(pin)))
 			ST_PINCONF_PACK_PU(*config);
 	}
 
 	if (pc->od) {
-		regmap_field_read(pc->od, &od_value);
-		if (od_value & BIT(pin))
+		if (regmap_field_test_bits(pc->od, BIT(pin)))
 			ST_PINCONF_PACK_OD(*config);
 	}
 }
@@ -599,22 +594,22 @@ static int st_pinconf_get_retime_packed(struct st_pinctrl *info,
 {
 	const struct st_pctl_data *data = info->data;
 	struct st_retime_packed *rt_p = &pc->rt.rt_p;
-	unsigned int delay_bits, delay, delay0, delay1, val;
+	unsigned int delay_bits, delay, delay0, delay1;
 	int output = ST_PINCONF_UNPACK_OE(*config);
 
-	if (!regmap_field_read(rt_p->retime, &val) && (val & BIT(pin)))
+	if (!regmap_field_test_bits(rt_p->retime, BIT(pin)))
 		ST_PINCONF_PACK_RT(*config);
 
-	if (!regmap_field_read(rt_p->clk1notclk0, &val) && (val & BIT(pin)))
+	if (!regmap_field_test_bits(rt_p->clk1notclk0, BIT(pin)))
 		ST_PINCONF_PACK_RT_CLK(*config, 1);
 
-	if (!regmap_field_read(rt_p->clknotdata, &val) && (val & BIT(pin)))
+	if (!regmap_field_test_bits(rt_p->clknotdata, BIT(pin)))
 		ST_PINCONF_PACK_RT_CLKNOTDATA(*config);
 
-	if (!regmap_field_read(rt_p->double_edge, &val) && (val & BIT(pin)))
+	if (!regmap_field_test_bits(rt_p->double_edge, BIT(pin)))
 		ST_PINCONF_PACK_RT_DOUBLE_EDGE(*config);
 
-	if (!regmap_field_read(rt_p->invertclk, &val) && (val & BIT(pin)))
+	if (!regmap_field_test_bits(rt_p->invertclk, BIT(pin)))
 		ST_PINCONF_PACK_RT_INVERTCLK(*config);
 
 	regmap_field_read(rt_p->delay_0, &delay0);
-- 
2.36.1