Hi Qing, On Tue, Oct 12, 2021 at 08:28:00PM -0700, Qing Wang wrote:

coccicheck complains about the use of snprintf() in sysfs show functions.

Fix the coccicheck warning: WARNING: use scnprintf or sprintf.

Use sysfs_emit instead of scnprintf or sprintf makes more sense.

Signed-off-by: Qing Wang wangqing@vivo.com

Thanks, applied to drm-misc-next.

As fbdev is in maintenance only I was about to skip them. But the changes was trivial so I took them anyway.

Sam

---

drivers/video/fbdev/core/fbsysfs.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/video/fbdev/core/fbsysfs.c b/drivers/video/fbdev/core/fbsysfs.c index 65dae05..2689294 100644 --- a/drivers/video/fbdev/core/fbsysfs.c +++ b/drivers/video/fbdev/core/fbsysfs.c @@ -230,7 +230,7 @@ static ssize_t show_bpp(struct device *device, struct device_attribute *attr, char *buf) { struct fb_info *fb_info = dev_get_drvdata(device);

• return snprintf(buf, PAGE_SIZE, "%d\n", fb_info->var.bits_per_pixel);

• return sysfs_emit(buf, "%d\n", fb_info->var.bits_per_pixel);

}

static ssize_t store_rotate(struct device *device, @@ -257,7 +257,7 @@ static ssize_t show_rotate(struct device *device, { struct fb_info *fb_info = dev_get_drvdata(device);

• return snprintf(buf, PAGE_SIZE, "%d\n", fb_info->var.rotate);

• return sysfs_emit(buf, "%d\n", fb_info->var.rotate);

}

static ssize_t store_virtual(struct device *device, @@ -285,7 +285,7 @@ static ssize_t show_virtual(struct device *device, struct device_attribute *attr, char *buf) { struct fb_info *fb_info = dev_get_drvdata(device);

• return snprintf(buf, PAGE_SIZE, "%d,%d\n", fb_info->var.xres_virtual,

• return sysfs_emit(buf, "%d,%d\n", fb_info->var.xres_virtual, fb_info->var.yres_virtual);

}

@@ -293,7 +293,7 @@ static ssize_t show_stride(struct device *device, struct device_attribute *attr, char *buf) { struct fb_info *fb_info = dev_get_drvdata(device);

• return snprintf(buf, PAGE_SIZE, "%d\n", fb_info->fix.line_length);

• return sysfs_emit(buf, "%d\n", fb_info->fix.line_length);

}

static ssize_t store_blank(struct device *device, @@ -381,7 +381,7 @@ static ssize_t show_pan(struct device *device, struct device_attribute *attr, char *buf) { struct fb_info *fb_info = dev_get_drvdata(device);

• return snprintf(buf, PAGE_SIZE, "%d,%d\n", fb_info->var.xoffset,

• return sysfs_emit(buf, "%d,%d\n", fb_info->var.xoffset, fb_info->var.yoffset);

}

@@ -390,7 +390,7 @@ static ssize_t show_name(struct device *device, { struct fb_info *fb_info = dev_get_drvdata(device);

• return snprintf(buf, PAGE_SIZE, "%s\n", fb_info->fix.id);

• return sysfs_emit(buf, "%s\n", fb_info->fix.id);

}

static ssize_t store_fbstate(struct device *device, @@ -418,7 +418,7 @@ static ssize_t show_fbstate(struct device *device, struct device_attribute *attr, char *buf) { struct fb_info *fb_info = dev_get_drvdata(device);

• return snprintf(buf, PAGE_SIZE, "%d\n", fb_info->state);

• return sysfs_emit(buf, "%d\n", fb_info->state);

}

#if IS_ENABLED(CONFIG_FB_BACKLIGHT)

2.7.4