platform/x86: uv_sysfs: Use sysfs_emit() instead of scnprintf()

Follow the advice of the Documentation/filesystems/sysfs.rst and show()
should only use sysfs_emit() or sysfs_emit_at() when formatting the
value to be returned to user space.

Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn>
Reviewed-by: Justin Ernst <justin.ernst@hpe.com>
Link: https://lore.kernel.org/r/202212021705128095546@zte.com.cn
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

diff --git a/drivers/platform/x86/uv_sysfs.c b/drivers/platform/x86/uv_sysfs.c
index 625b0b7..73fc38e 100644 (file)
--- a/drivers/platform/x86/uv_sysfs.c
+++ b/drivers/platform/x86/uv_sysfs.c
@@ -119,12 +119,12 @@ struct uv_hub {
 
 static ssize_t hub_name_show(struct uv_bios_hub_info *hub_info, char *buf)
 {
-       return scnprintf(buf, PAGE_SIZE, "%s\n", hub_info->name);
+       return sysfs_emit(buf, "%s\n", hub_info->name);
 }
 
 static ssize_t hub_location_show(struct uv_bios_hub_info *hub_info, char *buf)
 {
-       return scnprintf(buf, PAGE_SIZE, "%s\n", hub_info->location);
+       return sysfs_emit(buf, "%s\n", hub_info->location);
 }
 
 static ssize_t hub_partition_show(struct uv_bios_hub_info *hub_info, char *buf)
@@ -460,12 +460,12 @@ struct uv_pci_top_obj {
 
 static ssize_t uv_pci_type_show(struct uv_pci_top_obj *top_obj, char *buf)
 {
-       return scnprintf(buf, PAGE_SIZE, "%s\n", top_obj->type);
+       return sysfs_emit(buf, "%s\n", top_obj->type);
 }
 
 static ssize_t uv_pci_location_show(struct uv_pci_top_obj *top_obj, char *buf)
 {
-       return scnprintf(buf, PAGE_SIZE, "%s\n", top_obj->location);
+       return sysfs_emit(buf, "%s\n", top_obj->location);
 }
 
 static ssize_t uv_pci_iio_stack_show(struct uv_pci_top_obj *top_obj, char *buf)
@@ -475,7 +475,7 @@ static ssize_t uv_pci_iio_stack_show(struct uv_pci_top_obj *top_obj, char *buf)
 
 static ssize_t uv_pci_ppb_addr_show(struct uv_pci_top_obj *top_obj, char *buf)
 {
-       return scnprintf(buf, PAGE_SIZE, "%s\n", top_obj->ppb_addr);
+       return sysfs_emit(buf, "%s\n", top_obj->ppb_addr);
 }
 
 static ssize_t uv_pci_slot_show(struct uv_pci_top_obj *top_obj, char *buf)
@@ -737,7 +737,7 @@ static ssize_t coherence_id_show(struct kobject *kobj,
 static ssize_t uv_type_show(struct kobject *kobj,
                        struct kobj_attribute *attr, char *buf)
 {
-       return scnprintf(buf, PAGE_SIZE, "%s\n", uv_type_string());
+       return sysfs_emit(buf, "%s\n", uv_type_string());
 }
 
 static ssize_t uv_archtype_show(struct kobject *kobj,
@@ -749,13 +749,13 @@ static ssize_t uv_archtype_show(struct kobject *kobj,
 static ssize_t uv_hub_type_show(struct kobject *kobj,
                        struct kobj_attribute *attr, char *buf)
 {
-       return scnprintf(buf, PAGE_SIZE, "0x%x\n", uv_hub_type());
+       return sysfs_emit(buf, "0x%x\n", uv_hub_type());
 }
 
 static ssize_t uv_hubless_show(struct kobject *kobj,
                        struct kobj_attribute *attr, char *buf)
 {
-       return scnprintf(buf, PAGE_SIZE, "0x%x\n", uv_get_hubless_system());
+       return sysfs_emit(buf, "0x%x\n", uv_get_hubless_system());
 }
 
 static struct kobj_attribute partition_id_attr =