change system file

hc

2024-10-09 244b2c5ca8b14627e4a17755e5922221e121c771

 kernel/drivers/dma-buf/sync_debug.c
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@@ -1,23 +1,13 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * Sync File validation framework and debug information
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  *
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  * Copyright (C) 2012 Google, Inc.
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- *
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- * This software is licensed under the terms of the GNU General Public
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- * License version 2, as published by the Free Software Foundation, and
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- * may be copied, distributed, and modified under those terms.
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- *
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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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- * GNU General Public License for more details.
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- *
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  */
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 #include <linux/debugfs.h>
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 #include "sync_debug.h"
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-#ifdef CONFIG_DEBUG_FS
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 static struct dentry *dbgfs;
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 static LIST_HEAD(sync_timeline_list_head);
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@@ -148,7 +138,7 @@
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 	}
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 }
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-static int sync_debugfs_show(struct seq_file *s, void *unused)
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+static int sync_info_debugfs_show(struct seq_file *s, void *unused)
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 {
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 	struct list_head *pos;
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@@ -179,17 +169,7 @@
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 	return 0;
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 }
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-static int sync_info_debugfs_open(struct inode *inode, struct file *file)
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-{
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-	return single_open(file, sync_debugfs_show, inode->i_private);
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-}
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-
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-static const struct file_operations sync_info_debugfs_fops = {
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-	.open           = sync_info_debugfs_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(sync_info_debugfs);
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 static __init int sync_debugfs_init(void)
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 {
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@@ -208,30 +188,3 @@
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 	return 0;
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 }
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 late_initcall(sync_debugfs_init);
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-
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-#define DUMP_CHUNK 256
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-static char sync_dump_buf[64 * 1024];
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-void sync_dump(void)
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-{
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-	struct seq_file s = {
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-		.buf = sync_dump_buf,
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-		.size = sizeof(sync_dump_buf) - 1,
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-	};
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-	int i;
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-
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-	sync_debugfs_show(&s, NULL);
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-
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-	for (i = 0; i < s.count; i += DUMP_CHUNK) {
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-		if ((s.count - i) > DUMP_CHUNK) {
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-			char c = s.buf[i + DUMP_CHUNK];
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-
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-			s.buf[i + DUMP_CHUNK] = 0;
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-			pr_cont("%s", s.buf + i);
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-			s.buf[i + DUMP_CHUNK] = c;
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-		} else {
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-			s.buf[s.count] = 0;
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-			pr_cont("%s", s.buf + i);
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-		}
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-	}
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-}
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-#endif