drm/amdgpu: Convert sysfs sprintf/snprintf family to sysfs_emit

Fix the following coccicheck warning:
drivers/gpu//drm/amd/amdgpu/amdgpu_ras.c:434:9-17: WARNING:
use scnprintf or sprintf
drivers/gpu//drm/amd/amdgpu/amdgpu_xgmi.c:220:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu//drm/amd/amdgpu/amdgpu_xgmi.c:249:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu//drm/amd/amdgpu/df_v3_6.c:208:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu//drm/amd/amdgpu/amdgpu_psp.c:2973:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu//drm/amd/amdgpu/amdgpu_vram_mgr.c:75:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu//drm/amd/amdgpu/amdgpu_vram_mgr.c:112:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu//drm/amd/amdgpu/amdgpu_vram_mgr.c:58:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu//drm/amd/amdgpu/amdgpu_vram_mgr.c:93:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu//drm/amd/amdgpu/amdgpu_vram_mgr.c:125:9-17: WARNING:
use scnprintf or sprintf
drivers/gpu//drm/amd/amdgpu/amdgpu_gtt_mgr.c:52:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu//drm/amd/amdgpu/amdgpu_gtt_mgr.c:71:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu//drm/amd/amdgpu/amdgpu_device.c:140:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu//drm/amd/amdgpu/amdgpu_device.c:164:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu//drm/amd/amdgpu/amdgpu_device.c:186:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu//drm/amd/amdgpu/amdgpu_device.c:208:8-16: WARNING:
use scnprintf or sprintf
drivers/gpu//drm/amd/amdgpu/amdgpu_atombios.c:1916:8-16: WARNING:
use scnprintf or sprintf
Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c

@@ -1913,7 +1913,7 @@ static ssize_t amdgpu_atombios_get_vbios_version(struct device *dev,
 	struct amdgpu_device *adev = drm_to_adev(ddev);
 	struct atom_context *ctx = adev->mode_info.atom_context;
 
-	return snprintf(buf, PAGE_SIZE, "%s\n", ctx->vbios_version);
+	return sysfs_emit(buf, "%s\n", ctx->vbios_version);
 }
 
 static DEVICE_ATTR(vbios_version, 0444, amdgpu_atombios_get_vbios_version,

drivers/gpu/drm/amd/amdgpu/amdgpu_device.c

@@ -137,7 +137,7 @@ static ssize_t amdgpu_device_get_pcie_replay_count(struct device *dev,
 	struct amdgpu_device *adev = drm_to_adev(ddev);
 	uint64_t cnt = amdgpu_asic_get_pcie_replay_count(adev);
 
-	return snprintf(buf, PAGE_SIZE, "%llu\n", cnt);
+	return sysfs_emit(buf, "%llu\n", cnt);
 }
 
 static DEVICE_ATTR(pcie_replay_count, S_IRUGO,
@@ -161,7 +161,7 @@ static ssize_t amdgpu_device_get_product_name(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\n", adev->product_name);
+	return sysfs_emit(buf, "%s\n", adev->product_name);
 }
 
 static DEVICE_ATTR(product_name, S_IRUGO,
@@ -183,7 +183,7 @@ static ssize_t amdgpu_device_get_product_number(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\n", adev->product_number);
+	return sysfs_emit(buf, "%s\n", adev->product_number);
 }
 
 static DEVICE_ATTR(product_number, S_IRUGO,
@@ -205,7 +205,7 @@ static ssize_t amdgpu_device_get_serial_number(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\n", adev->serial);
+	return sysfs_emit(buf, "%s\n", adev->serial);
 }
 
 static DEVICE_ATTR(serial_number, S_IRUGO,

drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c

@@ -49,8 +49,7 @@ static ssize_t amdgpu_mem_info_gtt_total_show(struct device *dev,
 	struct amdgpu_device *adev = drm_to_adev(ddev);
 	struct ttm_resource_manager *man = ttm_manager_type(&adev->mman.bdev, TTM_PL_TT);
 
-	return snprintf(buf, PAGE_SIZE, "%llu\n",
-			man->size * PAGE_SIZE);
+	return sysfs_emit(buf, "%llu\n", man->size * PAGE_SIZE);
 }
 
 /**
@@ -68,8 +67,7 @@ static ssize_t amdgpu_mem_info_gtt_used_show(struct device *dev,
 	struct amdgpu_device *adev = drm_to_adev(ddev);
 	struct ttm_resource_manager *man = ttm_manager_type(&adev->mman.bdev, TTM_PL_TT);
 
-	return snprintf(buf, PAGE_SIZE, "%llu\n",
-			amdgpu_gtt_mgr_usage(man));
+	return sysfs_emit(buf, "%llu\n", amdgpu_gtt_mgr_usage(man));
 }
 
 static DEVICE_ATTR(mem_info_gtt_total, S_IRUGO,

drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c

@@ -2993,7 +2993,7 @@ static ssize_t psp_usbc_pd_fw_sysfs_read(struct device *dev,
 		return ret;
 	}
 
-	return snprintf(buf, PAGE_SIZE, "%x\n", fw_ver);
+	return sysfs_emit(buf, "%x\n", fw_ver);
 }
 
 static ssize_t psp_usbc_pd_fw_sysfs_write(struct device *dev,

drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c

@@ -431,15 +431,13 @@ static ssize_t amdgpu_ras_sysfs_read(struct device *dev,
 	};
 
 	if (!amdgpu_ras_get_error_query_ready(obj->adev))
-		return snprintf(buf, PAGE_SIZE,
-				"Query currently inaccessible\n");
+		return sysfs_emit(buf, "Query currently inaccessible\n");
 
 	if (amdgpu_ras_query_error_status(obj->adev, &info))
 		return -EINVAL;
 
-	return snprintf(buf, PAGE_SIZE, "%s: %lu\n%s: %lu\n",
-			"ue", info.ue_count,
-			"ce", info.ce_count);
+	return sysfs_emit(buf, "%s: %lu\n%s: %lu\n", "ue", info.ue_count,
+			  "ce", info.ce_count);
 }
 
 /* obj begin */

drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c

@@ -52,7 +52,7 @@ static ssize_t amdgpu_mem_info_vram_total_show(struct device *dev,
 	struct drm_device *ddev = dev_get_drvdata(dev);
 	struct amdgpu_device *adev = drm_to_adev(ddev);
 
-	return snprintf(buf, PAGE_SIZE, "%llu\n", adev->gmc.real_vram_size);
+	return sysfs_emit(buf, "%llu\n", adev->gmc.real_vram_size);
 }
 
 /**
@@ -69,7 +69,7 @@ static ssize_t amdgpu_mem_info_vis_vram_total_show(struct device *dev,
 	struct drm_device *ddev = dev_get_drvdata(dev);
 	struct amdgpu_device *adev = drm_to_adev(ddev);
 
-	return snprintf(buf, PAGE_SIZE, "%llu\n", adev->gmc.visible_vram_size);
+	return sysfs_emit(buf, "%llu\n", adev->gmc.visible_vram_size);
 }
 
 /**
@@ -87,8 +87,7 @@ static ssize_t amdgpu_mem_info_vram_used_show(struct device *dev,
 	struct amdgpu_device *adev = drm_to_adev(ddev);
 	struct ttm_resource_manager *man = ttm_manager_type(&adev->mman.bdev, TTM_PL_VRAM);
 
-	return snprintf(buf, PAGE_SIZE, "%llu\n",
-			amdgpu_vram_mgr_usage(man));
+	return sysfs_emit(buf, "%llu\n", amdgpu_vram_mgr_usage(man));
 }
 
 /**
@@ -106,8 +105,7 @@ static ssize_t amdgpu_mem_info_vis_vram_used_show(struct device *dev,
 	struct amdgpu_device *adev = drm_to_adev(ddev);
 	struct ttm_resource_manager *man = ttm_manager_type(&adev->mman.bdev, TTM_PL_VRAM);
 
-	return snprintf(buf, PAGE_SIZE, "%llu\n",
-			amdgpu_vram_mgr_vis_usage(man));
+	return sysfs_emit(buf, "%llu\n", amdgpu_vram_mgr_vis_usage(man));
 }
 
 static ssize_t amdgpu_mem_info_vram_vendor(struct device *dev,
@@ -119,27 +117,27 @@ static ssize_t amdgpu_mem_info_vram_vendor(struct device *dev,
 
 	switch (adev->gmc.vram_vendor) {
 	case SAMSUNG:
-		return snprintf(buf, PAGE_SIZE, "samsung\n");
+		return sysfs_emit(buf, "samsung\n");
 	case INFINEON:
-		return snprintf(buf, PAGE_SIZE, "infineon\n");
+		return sysfs_emit(buf, "infineon\n");
 	case ELPIDA:
-		return snprintf(buf, PAGE_SIZE, "elpida\n");
+		return sysfs_emit(buf, "elpida\n");
 	case ETRON:
-		return snprintf(buf, PAGE_SIZE, "etron\n");
+		return sysfs_emit(buf, "etron\n");
 	case NANYA:
-		return snprintf(buf, PAGE_SIZE, "nanya\n");
+		return sysfs_emit(buf, "nanya\n");
 	case HYNIX:
-		return snprintf(buf, PAGE_SIZE, "hynix\n");
+		return sysfs_emit(buf, "hynix\n");
 	case MOSEL:
-		return snprintf(buf, PAGE_SIZE, "mosel\n");
+		return sysfs_emit(buf, "mosel\n");
 	case WINBOND:
-		return snprintf(buf, PAGE_SIZE, "winbond\n");
+		return sysfs_emit(buf, "winbond\n");
 	case ESMT:
-		return snprintf(buf, PAGE_SIZE, "esmt\n");
+		return sysfs_emit(buf, "esmt\n");
 	case MICRON:
-		return snprintf(buf, PAGE_SIZE, "micron\n");
+		return sysfs_emit(buf, "micron\n");
 	default:
-		return snprintf(buf, PAGE_SIZE, "unknown\n");
+		return sysfs_emit(buf, "unknown\n");
 	}
 }
 

drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c

@@ -216,7 +216,7 @@ static ssize_t amdgpu_xgmi_show_device_id(struct device *dev,
 	struct drm_device *ddev = dev_get_drvdata(dev);
 	struct amdgpu_device *adev = drm_to_adev(ddev);
 
-	return snprintf(buf, PAGE_SIZE, "%llu\n", adev->gmc.xgmi.node_id);
+	return sysfs_emit(buf, "%llu\n", adev->gmc.xgmi.node_id);
 
 }
 
@@ -245,7 +245,7 @@ static ssize_t amdgpu_xgmi_show_error(struct device *dev,
 
 	adev->df.funcs->set_fica(adev, ficaa_pie_status_in, 0, 0);
 
-	return snprintf(buf, PAGE_SIZE, "%u\n", error_count);
+	return sysfs_emit(buf, "%u\n", error_count);
 }
 
 

drivers/gpu/drm/amd/amdgpu/df_v3_6.c

@@ -205,7 +205,7 @@ static ssize_t df_v3_6_get_df_cntr_avail(struct device *dev,
 			count++;
 	}
 
-	return snprintf(buf, PAGE_SIZE,	"%i\n", count);
+	return sysfs_emit(buf, "%i\n", count);
 }
 
 /* device attr for available perfmon counters */