diff mbox series

[5/6] USB: typec: fusb302: create debugfs subdir for the driver

Message ID 20210216144645.3813043-5-gregkh@linuxfoundation.org (mailing list archive)
State Accepted
Commit b43fba1b7b4c6e0500dd61d5a28bf32b5de1537a
Headers show
Series [1/6] USB: host: isp116x: remove dentry pointer for debugfs | expand

Commit Message

Greg KH Feb. 16, 2021, 2:46 p.m. UTC
The single debugfs file for this driver really is a log file, so make a
subdir and call it "log" to make it obvious this is what it is for.
This makes cleanup simpler as we just remove the whole directory, no
need to handle individual files anymore.

Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Cc: linux-usb@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/typec/tcpm/fusb302.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

Comments

Guenter Roeck Feb. 16, 2021, 3:24 p.m. UTC | #1
On 2/16/21 6:46 AM, Greg Kroah-Hartman wrote:
> The single debugfs file for this driver really is a log file, so make a
> subdir and call it "log" to make it obvious this is what it is for.
> This makes cleanup simpler as we just remove the whole directory, no
> need to handle individual files anymore.
> 
> Cc: Guenter Roeck <linux@roeck-us.net>
> Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>
> Cc: linux-usb@vger.kernel.org
> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Reviewed-by: Guenter Roeck <linux@roeck-us.net>

I'd probably have explored the possibility to group files like this
under the newly created tcpm debugfs directory, but that is really
a nitpick.

Guenter

> ---
>  drivers/usb/typec/tcpm/fusb302.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/usb/typec/tcpm/fusb302.c b/drivers/usb/typec/tcpm/fusb302.c
> index ebc46b9f776c..7a2a17866a82 100644
> --- a/drivers/usb/typec/tcpm/fusb302.c
> +++ b/drivers/usb/typec/tcpm/fusb302.c
> @@ -213,8 +213,9 @@ static void fusb302_debugfs_init(struct fusb302_chip *chip)
>  
>  	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);
> +	chip->dentry = debugfs_create_dir(name, usb_debug_root);
> +	debugfs_create_file("log", S_IFREG | 0444, chip->dentry, chip,
> +			    &fusb302_debug_fops);
>  }
>  
>  static void fusb302_debugfs_exit(struct fusb302_chip *chip)
>
Heikki Krogerus March 1, 2021, 3:15 p.m. UTC | #2
On Tue, Feb 16, 2021 at 03:46:44PM +0100, Greg Kroah-Hartman wrote:
> The single debugfs file for this driver really is a log file, so make a
> subdir and call it "log" to make it obvious this is what it is for.
> This makes cleanup simpler as we just remove the whole directory, no
> need to handle individual files anymore.
> 
> Cc: Guenter Roeck <linux@roeck-us.net>
> Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>
> Cc: linux-usb@vger.kernel.org
> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>

> ---
>  drivers/usb/typec/tcpm/fusb302.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/usb/typec/tcpm/fusb302.c b/drivers/usb/typec/tcpm/fusb302.c
> index ebc46b9f776c..7a2a17866a82 100644
> --- a/drivers/usb/typec/tcpm/fusb302.c
> +++ b/drivers/usb/typec/tcpm/fusb302.c
> @@ -213,8 +213,9 @@ static void fusb302_debugfs_init(struct fusb302_chip *chip)
>  
>  	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);
> +	chip->dentry = debugfs_create_dir(name, usb_debug_root);
> +	debugfs_create_file("log", S_IFREG | 0444, chip->dentry, chip,
> +			    &fusb302_debug_fops);
>  }
>  
>  static void fusb302_debugfs_exit(struct fusb302_chip *chip)
> -- 
> 2.30.1
Greg KH March 2, 2021, 7:32 a.m. UTC | #3
On Tue, Feb 16, 2021 at 07:24:14AM -0800, Guenter Roeck wrote:
> On 2/16/21 6:46 AM, Greg Kroah-Hartman wrote:
> > The single debugfs file for this driver really is a log file, so make a
> > subdir and call it "log" to make it obvious this is what it is for.
> > This makes cleanup simpler as we just remove the whole directory, no
> > need to handle individual files anymore.
> > 
> > Cc: Guenter Roeck <linux@roeck-us.net>
> > Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>
> > Cc: linux-usb@vger.kernel.org
> > Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> 
> Reviewed-by: Guenter Roeck <linux@roeck-us.net>
> 
> I'd probably have explored the possibility to group files like this
> under the newly created tcpm debugfs directory, but that is really
> a nitpick.

Good idea, I'll look into doing that next...

thanks,

greg k-h
diff mbox series

Patch

diff --git a/drivers/usb/typec/tcpm/fusb302.c b/drivers/usb/typec/tcpm/fusb302.c
index ebc46b9f776c..7a2a17866a82 100644
--- a/drivers/usb/typec/tcpm/fusb302.c
+++ b/drivers/usb/typec/tcpm/fusb302.c
@@ -213,8 +213,9 @@  static void fusb302_debugfs_init(struct fusb302_chip *chip)
 
 	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);
+	chip->dentry = debugfs_create_dir(name, usb_debug_root);
+	debugfs_create_file("log", S_IFREG | 0444, chip->dentry, chip,
+			    &fusb302_debug_fops);
 }
 
 static void fusb302_debugfs_exit(struct fusb302_chip *chip)