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2023-12-08 01573e231f18eb2d99162747186f59511f56b64d

 kernel/drivers/base/regmap/regcache-rbtree.c
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@@ -1,14 +1,10 @@
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-/*
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- * Register cache access API - rbtree caching support
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- *
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- * Copyright 2011 Wolfson Microelectronics plc
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- *
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- * Author: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
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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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+// SPDX-License-Identifier: GPL-2.0
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+//
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+// Register cache access API - rbtree caching support
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+//
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+// Copyright 2011 Wolfson Microelectronics plc
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+//
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+// Author: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
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 #include <linux/debugfs.h>
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 #include <linux/device.h>
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@@ -33,7 +29,7 @@
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 	unsigned int blklen;
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 	/* the actual rbtree node holding this block */
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 	struct rb_node node;
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-} __attribute__ ((packed));
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+};
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 struct regcache_rbtree_ctx {
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 	struct rb_root root;
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@@ -177,17 +173,7 @@
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 	return 0;
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 }
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-static int rbtree_open(struct inode *inode, struct file *file)
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-{
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-	return single_open(file, rbtree_show, inode->i_private);
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-}
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-
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-static const struct file_operations rbtree_fops = {
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-	.open		= rbtree_open,
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-	.read		= seq_read,
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-	.llseek		= seq_lseek,
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-	.release	= single_release,
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-};
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+DEFINE_SHOW_ATTRIBUTE(rbtree);
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 static void rbtree_debugfs_init(struct regmap *map)
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 {