write in 30M

hc

2024-02-20 ea08eeccae9297f7aabd2ef7f0c2517ac4549acc

 kernel/drivers/acpi/bgrt.c
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@@ -1,12 +1,9 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * BGRT boot graphic support
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  * Authors: Matthew Garrett, Josh Triplett <josh@joshtriplett.org>
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  * Copyright 2012 Red Hat, Inc <mjg@redhat.com>
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  * Copyright 2012 Intel Corporation
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License version 2 as
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- * published by the Free Software Foundation.
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  */
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 #include <linux/kernel.h>
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@@ -18,40 +15,19 @@
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 static void *bgrt_image;
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 static struct kobject *bgrt_kobj;
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-static ssize_t show_version(struct device *dev,
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-			    struct device_attribute *attr, char *buf)
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-{
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-	return snprintf(buf, PAGE_SIZE, "%d\n", bgrt_tab.version);
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-}
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-static DEVICE_ATTR(version, S_IRUGO, show_version, NULL);
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+#define BGRT_SHOW(_name, _member) \
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+	static ssize_t _name##_show(struct kobject *kobj,			\
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+				    struct kobj_attribute *attr, char *buf)	\
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+	{									\
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+		return snprintf(buf, PAGE_SIZE, "%d\n", bgrt_tab._member);	\
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+	}									\
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+	struct kobj_attribute bgrt_attr_##_name = __ATTR_RO(_name)
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-static ssize_t show_status(struct device *dev,
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-			   struct device_attribute *attr, char *buf)
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-{
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-	return snprintf(buf, PAGE_SIZE, "%d\n", bgrt_tab.status);
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-}
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-static DEVICE_ATTR(status, S_IRUGO, show_status, NULL);
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-
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-static ssize_t show_type(struct device *dev,
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-			 struct device_attribute *attr, char *buf)
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-{
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-	return snprintf(buf, PAGE_SIZE, "%d\n", bgrt_tab.image_type);
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-}
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-static DEVICE_ATTR(type, S_IRUGO, show_type, NULL);
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-
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-static ssize_t show_xoffset(struct device *dev,
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-			    struct device_attribute *attr, char *buf)
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-{
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-	return snprintf(buf, PAGE_SIZE, "%d\n", bgrt_tab.image_offset_x);
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-}
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-static DEVICE_ATTR(xoffset, S_IRUGO, show_xoffset, NULL);
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-
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-static ssize_t show_yoffset(struct device *dev,
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-			    struct device_attribute *attr, char *buf)
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-{
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-	return snprintf(buf, PAGE_SIZE, "%d\n", bgrt_tab.image_offset_y);
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-}
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-static DEVICE_ATTR(yoffset, S_IRUGO, show_yoffset, NULL);
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+BGRT_SHOW(version, version);
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+BGRT_SHOW(status, status);
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+BGRT_SHOW(type, image_type);
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+BGRT_SHOW(xoffset, image_offset_x);
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+BGRT_SHOW(yoffset, image_offset_y);
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 static ssize_t image_read(struct file *file, struct kobject *kobj,
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 	       struct bin_attribute *attr, char *buf, loff_t off, size_t count)
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@@ -63,11 +39,11 @@
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 static BIN_ATTR_RO(image, 0);	/* size gets filled in later */
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 static struct attribute *bgrt_attributes[] = {
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-	&dev_attr_version.attr,
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-	&dev_attr_status.attr,
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-	&dev_attr_type.attr,
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-	&dev_attr_xoffset.attr,
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-	&dev_attr_yoffset.attr,
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+	&bgrt_attr_version.attr,
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+	&bgrt_attr_status.attr,
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+	&bgrt_attr_type.attr,
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+	&bgrt_attr_xoffset.attr,
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+	&bgrt_attr_yoffset.attr,
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 	NULL,
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 };
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