linux-kernel - [PATCH] drm/nouveau/hwmon: Use sysfs

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Message-ID: <Y6gRkFnEgPO4avrs@qemulion>
Date:   Sun, 25 Dec 2022 14:32:08 +0530
From:   Deepak R Varma <drv@...lo.com>
To:     Ben Skeggs <bskeggs@...hat.com>, Karol Herbst <kherbst@...hat.com>,
        Lyude Paul <lyude@...hat.com>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        dri-devel@...ts.freedesktop.org, nouveau@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org
Cc:     Saurabh Singh Sengar <ssengar@...rosoft.com>,
        Praveen Kumar <kumarpraveen@...ux.microsoft.com>,
        Deepak R Varma <drv@...lo.com>
Subject: [PATCH] drm/nouveau/hwmon: Use sysfs_emit in show function callsbacks

According to Documentation/filesystems/sysfs.rst, the show() callback
function of kobject attributes should strictly use sysfs_emit() instead
of sprintf() family functions. So, make this change.
Issue identified using the coccinelle device_attr_show.cocci script.

Signed-off-by: Deepak R Varma <drv@...lo.com>
---
 drivers/gpu/drm/nouveau/nouveau_hwmon.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_hwmon.c b/drivers/gpu/drm/nouveau/nouveau_hwmon.c
index a7db7c31064b..e844be49e11e 100644
--- a/drivers/gpu/drm/nouveau/nouveau_hwmon.c
+++ b/drivers/gpu/drm/nouveau/nouveau_hwmon.c
@@ -41,7 +41,7 @@ static ssize_t
 nouveau_hwmon_show_temp1_auto_point1_pwm(struct device *d,
 					 struct device_attribute *a, char *buf)
 {
-	return snprintf(buf, PAGE_SIZE, "%d\n", 100);
+	return sysfs_emit(buf, "%d\n", 100);
 }
 static SENSOR_DEVICE_ATTR(temp1_auto_point1_pwm, 0444,
 			  nouveau_hwmon_show_temp1_auto_point1_pwm, NULL, 0);
@@ -54,8 +54,8 @@ nouveau_hwmon_temp1_auto_point1_temp(struct device *d,
 	struct nouveau_drm *drm = nouveau_drm(dev);
 	struct nvkm_therm *therm = nvxx_therm(&drm->client.device);

-	return snprintf(buf, PAGE_SIZE, "%d\n",
-	      therm->attr_get(therm, NVKM_THERM_ATTR_THRS_FAN_BOOST) * 1000);
+	return sysfs_emit(buf, "%d\n",
+			  therm->attr_get(therm, NVKM_THERM_ATTR_THRS_FAN_BOOST) * 1000);
 }
 static ssize_t
 nouveau_hwmon_set_temp1_auto_point1_temp(struct device *d,
@@ -87,8 +87,8 @@ nouveau_hwmon_temp1_auto_point1_temp_hyst(struct device *d,
 	struct nouveau_drm *drm = nouveau_drm(dev);
 	struct nvkm_therm *therm = nvxx_therm(&drm->client.device);

-	return snprintf(buf, PAGE_SIZE, "%d\n",
-	 therm->attr_get(therm, NVKM_THERM_ATTR_THRS_FAN_BOOST_HYST) * 1000);
+	return sysfs_emit(buf, "%d\n",
+			  therm->attr_get(therm, NVKM_THERM_ATTR_THRS_FAN_BOOST_HYST) * 1000);
 }
 static ssize_t
 nouveau_hwmon_set_temp1_auto_point1_temp_hyst(struct device *d,
--
2.34.1