On Wed, Oct 15, 2014 at 09:57:18AM -0700, David Cohen wrote: > On Wed, Oct 15, 2014 at 12:00:22AM -0500, Felipe Balbi wrote: > > Hi, > > > > On Tue, Oct 14, 2014 at 01:15:05PM -0700, David Cohen wrote: > > > ERRATIC_ERROR interrupt is an event that needs more attention from > > > developers than currently implemented, since this indicates a serious > > > stability issue. The only way to get warned about it is by selecting the > > > maximum driver's verbosity. > > > > > > This patch increases a bit the error's verbosity. > > > > > > Signed-off-by: David Cohen <david.a.co...@linux.intel.com> > > > --- > > > drivers/usb/dwc3/gadget.c | 3 ++- > > > 1 file changed, 2 insertions(+), 1 deletion(-) > > > > > > diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c > > > index 3818b26bfc05..132e761d62e4 100644 > > > --- a/drivers/usb/dwc3/gadget.c > > > +++ b/drivers/usb/dwc3/gadget.c > > > @@ -2484,7 +2484,8 @@ static void dwc3_gadget_interrupt(struct dwc3 *dwc, > > > dev_vdbg(dwc->dev, "Start of Periodic Frame\n"); > > > break; > > > case DWC3_DEVICE_EVENT_ERRATIC_ERROR: > > > - dev_vdbg(dwc->dev, "Erratic Error\n"); > > > + WARN_ON_ONCE(1); > > > + dev_dbg(dwc->dev, "Erratic Error\n"); > > > > how about: > > WARN_ONCE(true, "Erratic Error\n"); > > > > instead ? > > When erratic error event happens, in my experience it is usually > followed but many of them in a row. It may end up too verbose.
Oops, sorry for my confusion. I read WARN(), not WARN_ONCE() when I read for the first time :) I let the dev_dbg() because it may be useful to get all the occurrences in case debug is enabled. But WARN_ONCE() is fine too if you prefer. Br, David > > Br, David > > > > > > break; > > > case DWC3_DEVICE_EVENT_CMD_CMPL: > > > dev_vdbg(dwc->dev, "Command Complete\n"); > > > -- > > > 2.1.0 > > > > > > > -- > > balbi > > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
