usb: typec: fusb302: Use usb_debug_root as root for our debugfs entry (b7cd6f64) · Commits · 戴 / test

Use usb_debug_root as root for our debugfs entry instead of creating our own subdirectory under the debugfs root. Reviewed-by:

drivers/usb/typec/tcpm/fusb302.c

+5 −8

Original line number	Diff line number	Diff line
		@@ -26,6 +26,7 @@
		#include <linux/spinlock.h>
		#include <linux/string.h>
		#include <linux/types.h>
		#include <linux/usb.h>
		#include <linux/usb/typec.h>
		#include <linux/usb/tcpm.h>
		#include <linux/usb/pd.h>
		@@ -206,23 +207,19 @@ static int fusb302_debug_show(struct seq_file s, void v)
		}
		DEFINE_SHOW_ATTRIBUTE(fusb302_debug);

		static struct dentry *rootdir;

		static void fusb302_debugfs_init(struct fusb302_chip *chip)
		{
		mutex_init(&chip->logbuffer_lock);
		if (!rootdir)
		rootdir = debugfs_create_dir("fusb302", NULL);
		char name[NAME_MAX];

		chip->dentry = debugfs_create_file(dev_name(chip->dev),
		S_IFREG \| 0444, rootdir,
		mutex_init(&chip->logbuffer_lock);
		snprintf(name, NAME_MAX, "fusb302-%s", dev_name(chip->dev));
		chip->dentry = debugfs_create_file(name, S_IFREG \| 0444, usb_debug_root,
		chip, &fusb302_debug_fops);
		}

		static void fusb302_debugfs_exit(struct fusb302_chip *chip)
		{
		debugfs_remove(chip->dentry);
		debugfs_remove(rootdir);
		}

		#else