[PATCH] platform/x86: use sysfs_emit() to instead of scnprintf()

From: ye.xingchen
Date: Fri Dec 02 2022 - 04:05:37 EST


From: ye xingchen <ye.xingchen@xxxxxxxxxx>

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@xxxxxxxxxx>
---
drivers/platform/x86/uv_sysfs.c | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/platform/x86/uv_sysfs.c b/drivers/platform/x86/uv_sysfs.c
index 625b0b79d185..73fc38ee7430 100644
--- 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 =
--
2.25.1