diff mbox

HID: rmi: change logging level of log messages related to unexpected reports

Message ID 1405114551-24354-2-git-send-email-aduggan@synaptics.com (mailing list archive)
State New, archived
Delegated to: Jiri Kosina
Headers show

Commit Message

Andrew Duggan July 11, 2014, 9:35 p.m. UTC
Userspace tools may use hidraw to perform operations on the device from userspace while
hid-rmi is bound to the device. This can cause hid-rmi to print error messages when its
->raw_event() callback gets called as the reports pass through the HID stack. In this case
receiving responses which were not initiated by hid-rmi is not actually an error so the resulting
error messages are incorrect and misleading. This patch changes the log messages to debug so
that the messages can be turned on in the event that there is a problem and there is not
a userspace tool running.

Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
---
 drivers/hid/hid-rmi.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

Benjamin Tissoires July 15, 2014, 7:07 p.m. UTC | #1
On Jul 11 2014 or thereabouts, Andrew Duggan wrote:
> Userspace tools may use hidraw to perform operations on the device from userspace while
> hid-rmi is bound to the device. This can cause hid-rmi to print error messages when its
> ->raw_event() callback gets called as the reports pass through the HID stack. In this case
> receiving responses which were not initiated by hid-rmi is not actually an error so the resulting
> error messages are incorrect and misleading. This patch changes the log messages to debug so
> that the messages can be turned on in the event that there is a problem and there is not
> a userspace tool running.
> 
> Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
> ---

Fair enough

Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>

Cheers,
Benjamin

>  drivers/hid/hid-rmi.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/hid/hid-rmi.c b/drivers/hid/hid-rmi.c
> index 578bbe6..25f571a 100644
> --- a/drivers/hid/hid-rmi.c
> +++ b/drivers/hid/hid-rmi.c
> @@ -377,7 +377,7 @@ static int rmi_input_event(struct hid_device *hdev, u8 *data, int size)
>  	irq_mask |= hdata->f30.irq_mask;
>  
>  	if (data[1] & ~irq_mask)
> -		hid_warn(hdev, "unknown intr source:%02lx %s:%d\n",
> +		hid_dbg(hdev, "unknown intr source:%02lx %s:%d\n",
>  			data[1] & ~irq_mask, __FILE__, __LINE__);
>  
>  	if (hdata->f11.interrupt_base < hdata->f30.interrupt_base) {
> @@ -400,7 +400,7 @@ static int rmi_read_data_event(struct hid_device *hdev, u8 *data, int size)
>  	struct rmi_data *hdata = hid_get_drvdata(hdev);
>  
>  	if (!test_bit(RMI_READ_REQUEST_PENDING, &hdata->flags)) {
> -		hid_err(hdev, "no read request pending\n");
> +		hid_dbg(hdev, "no read request pending\n");
>  		return 0;
>  	}
>  
> -- 
> 1.9.1
> 
--
To unsubscribe from this list: send the line "unsubscribe linux-input" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Jiri Kosina July 29, 2014, 9:10 a.m. UTC | #2
On Tue, 15 Jul 2014, Benjamin Tissoires   wrote:

> On Jul 11 2014 or thereabouts, Andrew Duggan wrote:
> > Userspace tools may use hidraw to perform operations on the device from userspace while
> > hid-rmi is bound to the device. This can cause hid-rmi to print error messages when its
> > ->raw_event() callback gets called as the reports pass through the HID stack. In this case
> > receiving responses which were not initiated by hid-rmi is not actually an error so the resulting
> > error messages are incorrect and misleading. This patch changes the log messages to debug so
> > that the messages can be turned on in the event that there is a problem and there is not
> > a userspace tool running.
> > 
> > Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
> > ---
> 
> Fair enough
> 
> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>

[ sorry for late response, I am just re-appearing from vacation-land ]

Applied, thanks.
diff mbox

Patch

diff --git a/drivers/hid/hid-rmi.c b/drivers/hid/hid-rmi.c
index 578bbe6..25f571a 100644
--- a/drivers/hid/hid-rmi.c
+++ b/drivers/hid/hid-rmi.c
@@ -377,7 +377,7 @@  static int rmi_input_event(struct hid_device *hdev, u8 *data, int size)
 	irq_mask |= hdata->f30.irq_mask;
 
 	if (data[1] & ~irq_mask)
-		hid_warn(hdev, "unknown intr source:%02lx %s:%d\n",
+		hid_dbg(hdev, "unknown intr source:%02lx %s:%d\n",
 			data[1] & ~irq_mask, __FILE__, __LINE__);
 
 	if (hdata->f11.interrupt_base < hdata->f30.interrupt_base) {
@@ -400,7 +400,7 @@  static int rmi_read_data_event(struct hid_device *hdev, u8 *data, int size)
 	struct rmi_data *hdata = hid_get_drvdata(hdev);
 
 	if (!test_bit(RMI_READ_REQUEST_PENDING, &hdata->flags)) {
-		hid_err(hdev, "no read request pending\n");
+		hid_dbg(hdev, "no read request pending\n");
 		return 0;
 	}