[PATCH] drm/amd/pm: convert sysfs snprintf to sysfs_emit

6 Apr 2021

From: Xuezhi Zhang zhangxuezhi1@yulong.com
Fix the following coccicheck warning:
drivers/gpu/drm/amd/pm//amdgpu_pm.c:1940:8-16: 
WARNING: use scnprintf or sprintf
drivers/gpu/drm/amd/pm//amdgpu_pm.c:1978:8-16: 
WARNING: use scnprintf or sprintf
drivers/gpu/drm/amd/pm//amdgpu_pm.c:2022:8-16: 
WARNING: use scnprintf or sprintf
drivers/gpu/drm/amd/pm//amdgpu_pm.c:294:8-16: 
WARNING: use scnprintf or sprintf
drivers/gpu/drm/amd/pm//amdgpu_pm.c:154:8-16: 
WARNING: use scnprintf or sprintf
drivers/gpu/drm/amd/pm//amdgpu_pm.c:496:8-16: 
WARNING: use scnprintf or sprintf
drivers/gpu/drm/amd/pm//amdgpu_pm.c:512:9-17: 
WARNING: use scnprintf or sprintf
drivers/gpu/drm/amd/pm//amdgpu_pm.c:1740:8-16: 
WARNING: use scnprintf or sprintf
drivers/gpu/drm/amd/pm//amdgpu_pm.c:1667:8-16: 
WARNING: use scnprintf or sprintf
drivers/gpu/drm/amd/pm//amdgpu_pm.c:2074:8-16: 
WARNING: use scnprintf or sprintf
drivers/gpu/drm/amd/pm//amdgpu_pm.c:2047:9-17: 
WARNING: use scnprintf or sprintf
drivers/gpu/drm/amd/pm//amdgpu_pm.c:2768:8-16: 
WARNING: use scnprintf or sprintf
drivers/gpu/drm/amd/pm//amdgpu_pm.c:2738:8-16: 
WARNING: use scnprintf or sprintf
drivers/gpu/drm/amd/pm//amdgpu_pm.c:2442:8-16: 
WARNING: use scnprintf or sprintf
drivers/gpu/drm/amd/pm//amdgpu_pm.c:3246:8-16: 
WARNING: use scnprintf or sprintf
drivers/gpu/drm/amd/pm//amdgpu_pm.c:3253:8-16: 
WARNING: use scnprintf or sprintf
drivers/gpu/drm/amd/pm//amdgpu_pm.c:2458:8-16: 
WARNING: use scnprintf or sprintf
drivers/gpu/drm/amd/pm//amdgpu_pm.c:3047:8-16: 
WARNING: use scnprintf or sprintf
drivers/gpu/drm/amd/pm//amdgpu_pm.c:3133:8-16: 
WARNING: use scnprintf or sprintf
drivers/gpu/drm/amd/pm//amdgpu_pm.c:3209:8-16: 
WARNING: use scnprintf or sprintf
drivers/gpu/drm/amd/pm//amdgpu_pm.c:3216:8-16: 
WARNING: use scnprintf or sprintf
drivers/gpu/drm/amd/pm//amdgpu_pm.c:2410:8-16: 
WARNING: use scnprintf or sprintf
drivers/gpu/drm/amd/pm//amdgpu_pm.c:2496:8-16: 
WARNING: use scnprintf or sprintf
drivers/gpu/drm/amd/pm//amdgpu_pm.c:2470:8-16: 
WARNING: use scnprintf or sprintf
drivers/gpu/drm/amd/pm//amdgpu_pm.c:2426:8-16: 
WARNING: use scnprintf or sprintf
drivers/gpu/drm/amd/pm//amdgpu_pm.c:2965:8-16: 
WARNING: use scnprintf or sprintf
drivers/gpu/drm/amd/pm//amdgpu_pm.c:2972:8-16: 
WARNING: use scnprintf or sprintf
drivers/gpu/drm/amd/pm//amdgpu_pm.c:3006:8-16: 
WARNING: use scnprintf or sprintf
drivers/gpu/drm/amd/pm//amdgpu_pm.c:3013:8-16: 
WARNING: use scnprintf or sprintf
Signed-off-by: Xuezhi Zhang zhangxuezhi1@yulong.com
---
 drivers/gpu/drm/amd/pm/amdgpu_pm.c | 58 +++++++++++++++---------------
 1 file changed, 29 insertions(+), 29 deletions(-)

diff --git a/drivers/gpu/drm/amd/pm/amdgpu_pm.c b/drivers/gpu/drm/amd/pm/amdgpu_pm.c
index 5fa65f191a37..2777966ec1ca 100644
--- a/drivers/gpu/drm/amd/pm/amdgpu_pm.c
+++ b/drivers/gpu/drm/amd/pm/amdgpu_pm.c
@@ -151,7 +151,7 @@ static ssize_t amdgpu_get_power_dpm_state(struct device *dev,
    pm_runtime_mark_last_busy(ddev->dev);
    pm_runtime_put_autosuspend(ddev->dev);
-	return snprintf(buf, PAGE_SIZE, "%s\n",
+	return sysfs_emit(buf, "%s\n",
    		(pm == POWER_STATE_TYPE_BATTERY) ? "battery" :
    		(pm == POWER_STATE_TYPE_BALANCED) ? "balanced" : "performance");
 }
@@ -291,7 +291,7 @@ static ssize_t amdgpu_get_power_dpm_force_performance_level(struct device *dev,
    pm_runtime_mark_last_busy(ddev->dev);
    pm_runtime_put_autosuspend(ddev->dev);
-	return snprintf(buf, PAGE_SIZE, "%s\n",
+	return sysfs_emit(buf, "%s\n",
    		(level == AMD_DPM_FORCED_LEVEL_AUTO) ? "auto" :
    		(level == AMD_DPM_FORCED_LEVEL_LOW) ? "low" :
    		(level == AMD_DPM_FORCED_LEVEL_HIGH) ? "high" :
@@ -493,7 +493,7 @@ static ssize_t amdgpu_get_pp_cur_state(struct device *dev,
    if (i == data.nums)
    	i = -EINVAL;
-	return snprintf(buf, PAGE_SIZE, "%d\n", i);
+	return sysfs_emit(buf, "%d\n", i);
 }
static ssize_t amdgpu_get_pp_force_state(struct device *dev,
@@ -509,7 +509,7 @@ static ssize_t amdgpu_get_pp_force_state(struct device *dev,
    if (adev->pp_force_state_enabled)
    	return amdgpu_get_pp_cur_state(dev, attr, buf);
    else
-		return snprintf(buf, PAGE_SIZE, "\n");
+		return sysfs_emit(buf, "\n");
 }
static ssize_t amdgpu_set_pp_force_state(struct device *dev,
@@ -1664,7 +1664,7 @@ static ssize_t amdgpu_get_pp_sclk_od(struct device *dev,
    pm_runtime_mark_last_busy(ddev->dev);
    pm_runtime_put_autosuspend(ddev->dev);
-	return snprintf(buf, PAGE_SIZE, "%d\n", value);
+	return sysfs_emit(buf, "%d\n", value);
 }
static ssize_t amdgpu_set_pp_sclk_od(struct device *dev,
@@ -1737,7 +1737,7 @@ static ssize_t amdgpu_get_pp_mclk_od(struct device *dev,
    pm_runtime_mark_last_busy(ddev->dev);
    pm_runtime_put_autosuspend(ddev->dev);
-	return snprintf(buf, PAGE_SIZE, "%d\n", value);
+	return sysfs_emit(buf, "%d\n", value);
 }
static ssize_t amdgpu_set_pp_mclk_od(struct device *dev,
@@ -1937,7 +1937,7 @@ static ssize_t amdgpu_get_gpu_busy_percent(struct device *dev,
    if (r)
    	return r;
-	return snprintf(buf, PAGE_SIZE, "%d\n", value);
+	return sysfs_emit(buf, "%d\n", value);
 }
/**
@@ -1975,7 +1975,7 @@ static ssize_t amdgpu_get_mem_busy_percent(struct device *dev,
    if (r)
    	return r;
-	return snprintf(buf, PAGE_SIZE, "%d\n", value);
+	return sysfs_emit(buf, "%d\n", value);
 }
/**
@@ -2019,7 +2019,7 @@ static ssize_t amdgpu_get_pcie_bw(struct device *dev,
    pm_runtime_mark_last_busy(ddev->dev);
    pm_runtime_put_autosuspend(ddev->dev);
-	return snprintf(buf, PAGE_SIZE,	"%llu %llu %i\n",
+	return sysfs_emit(buf,	"%llu %llu %i\n",
    		count0, count1, pcie_get_mps(adev->pdev));
 }
@@ -2044,7 +2044,7 @@ static ssize_t amdgpu_get_unique_id(struct device *dev,
    	return -EPERM;
if (adev->unique_id)
-		return snprintf(buf, PAGE_SIZE, "%016llx\n", adev->unique_id);
+		return sysfs_emit(buf, "%016llx\n", adev->unique_id);
return 0;
 }
@@ -2071,7 +2071,7 @@ static ssize_t amdgpu_get_thermal_throttling_logging(struct device *dev,
    struct drm_device *ddev = dev_get_drvdata(dev);
    struct amdgpu_device *adev = drm_to_adev(ddev);
-	return snprintf(buf, PAGE_SIZE, "%s: thermal throttling logging %s, with interval %d seconds\n",
+	return sysfs_emit(buf, "%s: thermal throttling logging %s, with interval %d seconds\n",
    		adev_to_drm(adev)->unique,
    		atomic_read(&adev->throttling_logging_enabled) ? "enabled" : "disabled",
    		adev->throttling_logging_rs.interval / HZ + 1);
@@ -2407,7 +2407,7 @@ static ssize_t amdgpu_hwmon_show_temp(struct device *dev,
    if (r)
    	return r;
-	return snprintf(buf, PAGE_SIZE, "%d\n", temp);
+	return sysfs_emit(buf, "%d\n", temp);
 }
static ssize_t amdgpu_hwmon_show_temp_thresh(struct device *dev,
@@ -2423,7 +2423,7 @@ static ssize_t amdgpu_hwmon_show_temp_thresh(struct device *dev,
    else
    	temp = adev->pm.dpm.thermal.max_temp;
-	return snprintf(buf, PAGE_SIZE, "%d\n", temp);
+	return sysfs_emit(buf, "%d\n", temp);
 }
static ssize_t amdgpu_hwmon_show_hotspot_temp_thresh(struct device *dev,
@@ -2439,7 +2439,7 @@ static ssize_t amdgpu_hwmon_show_hotspot_temp_thresh(struct device *dev,
    else
    	temp = adev->pm.dpm.thermal.max_hotspot_crit_temp;
-	return snprintf(buf, PAGE_SIZE, "%d\n", temp);
+	return sysfs_emit(buf, "%d\n", temp);
 }
static ssize_t amdgpu_hwmon_show_mem_temp_thresh(struct device *dev,
@@ -2455,7 +2455,7 @@ static ssize_t amdgpu_hwmon_show_mem_temp_thresh(struct device *dev,
    else
    	temp = adev->pm.dpm.thermal.max_mem_crit_temp;
-	return snprintf(buf, PAGE_SIZE, "%d\n", temp);
+	return sysfs_emit(buf, "%d\n", temp);
 }
static ssize_t amdgpu_hwmon_show_temp_label(struct device *dev,
@@ -2467,7 +2467,7 @@ static ssize_t amdgpu_hwmon_show_temp_label(struct device *dev,
    if (channel >= PP_TEMP_MAX)
    	return -EINVAL;
-	return snprintf(buf, PAGE_SIZE, "%s\n", temp_label[channel].label);
+	return sysfs_emit(buf, "%s\n", temp_label[channel].label);
 }
static ssize_t amdgpu_hwmon_show_temp_emergency(struct device *dev,
@@ -2493,7 +2493,7 @@ static ssize_t amdgpu_hwmon_show_temp_emergency(struct device *dev,
    	break;
    }
-	return snprintf(buf, PAGE_SIZE, "%d\n", temp);
+	return sysfs_emit(buf, "%d\n", temp);
 }
static ssize_t amdgpu_hwmon_get_pwm1_enable(struct device *dev,
@@ -2735,7 +2735,7 @@ static ssize_t amdgpu_hwmon_get_fan1_min(struct device *dev,
    if (r)
    	return r;
-	return snprintf(buf, PAGE_SIZE, "%d\n", min_rpm);
+	return sysfs_emit(buf, "%d\n", min_rpm);
 }
static ssize_t amdgpu_hwmon_get_fan1_max(struct device *dev,
@@ -2765,7 +2765,7 @@ static ssize_t amdgpu_hwmon_get_fan1_max(struct device *dev,
    if (r)
    	return r;
-	return snprintf(buf, PAGE_SIZE, "%d\n", max_rpm);
+	return sysfs_emit(buf, "%d\n", max_rpm);
 }
static ssize_t amdgpu_hwmon_get_fan1_target(struct device *dev,
@@ -2962,14 +2962,14 @@ static ssize_t amdgpu_hwmon_show_vddgfx(struct device *dev,
    if (r)
    	return r;
-	return snprintf(buf, PAGE_SIZE, "%d\n", vddgfx);
+	return sysfs_emit(buf, "%d\n", vddgfx);
 }
static ssize_t amdgpu_hwmon_show_vddgfx_label(struct device *dev,
    				      struct device_attribute *attr,
    				      char *buf)
 {
-	return snprintf(buf, PAGE_SIZE, "vddgfx\n");
+	return sysfs_emit(buf, "vddgfx\n");
 }
static ssize_t amdgpu_hwmon_show_vddnb(struct device *dev,
@@ -3003,14 +3003,14 @@ static ssize_t amdgpu_hwmon_show_vddnb(struct device *dev,
    if (r)
    	return r;
-	return snprintf(buf, PAGE_SIZE, "%d\n", vddnb);
+	return sysfs_emit(buf, "%d\n", vddnb);
 }
static ssize_t amdgpu_hwmon_show_vddnb_label(struct device *dev,
    				      struct device_attribute *attr,
    				      char *buf)
 {
-	return snprintf(buf, PAGE_SIZE, "vddnb\n");
+	return sysfs_emit(buf, "vddnb\n");
 }
static ssize_t amdgpu_hwmon_show_power_avg(struct device *dev,
@@ -3044,7 +3044,7 @@ static ssize_t amdgpu_hwmon_show_power_avg(struct device *dev,
    /* convert to microwatts */
    uw = (query >> 8) * 1000000 + (query & 0xff) * 1000;
-	return snprintf(buf, PAGE_SIZE, "%u\n", uw);
+	return sysfs_emit(buf, "%u\n", uw);
 }
static ssize_t amdgpu_hwmon_show_power_cap_min(struct device *dev,
@@ -3130,7 +3130,7 @@ static ssize_t amdgpu_hwmon_show_power_label(struct device *dev,
 {
    int limit_type = to_sensor_dev_attr(attr)->index;
-	return snprintf(buf, PAGE_SIZE, "%s\n",
+	return sysfs_emit(buf, "%s\n",
    	limit_type == SMU_FAST_PPT_LIMIT ? "fastPPT" : "slowPPT");
 }
@@ -3206,14 +3206,14 @@ static ssize_t amdgpu_hwmon_show_sclk(struct device *dev,
    if (r)
    	return r;
-	return snprintf(buf, PAGE_SIZE, "%u\n", sclk * 10 * 1000);
+	return sysfs_emit(buf, "%u\n", sclk * 10 * 1000);
 }
static ssize_t amdgpu_hwmon_show_sclk_label(struct device *dev,
    				    struct device_attribute *attr,
    				    char *buf)
 {
-	return snprintf(buf, PAGE_SIZE, "sclk\n");
+	return sysfs_emit(buf, "sclk\n");
 }
static ssize_t amdgpu_hwmon_show_mclk(struct device *dev,
@@ -3243,14 +3243,14 @@ static ssize_t amdgpu_hwmon_show_mclk(struct device *dev,
    if (r)
    	return r;
-	return snprintf(buf, PAGE_SIZE, "%u\n", mclk * 10 * 1000);
+	return sysfs_emit(buf, "%u\n", mclk * 10 * 1000);
 }
static ssize_t amdgpu_hwmon_show_mclk_label(struct device *dev,
    				    struct device_attribute *attr,
    				    char *buf)
 {
-	return snprintf(buf, PAGE_SIZE, "mclk\n");
+	return sysfs_emit(buf, "mclk\n");
 }
/**
-- 
2.25.1



    

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

[PATCH] drm/amd/pm: convert sysfs snprintf to sysfs_emit