From: Jeremiah Mahler <jmmahler@gmail.com>
To: Johan Hovold <johan@kernel.org>
Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org,
Jeremiah Mahler <jmmahler@gmail.com>
Subject: [PATCH v2b 1/2] usb: serial: handle -EPROTO quietly in generic_read_bulk
Date: Sat, 20 Dec 2014 08:17:35 -0800 [thread overview]
Message-ID: <1419092255-497-1-git-send-email-jmmahler@gmail.com> (raw)
In-Reply-To: <20141220125952.GA1424@newt.localdomain>
If a USB serial device is unplugged while there is an active program
using the device it will spam the logs with -EPROTO (71) messages as it
attempts to retry.
Most serial usb drivers (metro-usb, pl2303, mos7840, ...) only output
these messages for debugging. The generic driver treats these as
errors.
Change the default output for the generic serial driver from error to
debug.
Signed-off-by: Jeremiah Mahler <jmmahler@gmail.com>
---
Notes:
Minor change just fixes the wording in the log message.
drivers/usb/serial/generic.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c
index 1bd1922..2d7207b 100644
--- a/drivers/usb/serial/generic.c
+++ b/drivers/usb/serial/generic.c
@@ -373,7 +373,7 @@ void usb_serial_generic_read_bulk_callback(struct urb *urb)
__func__, urb->status);
return;
default:
- dev_err(&port->dev, "%s - nonzero urb status: %d\n",
+ dev_dbg(&port->dev, "%s - nonzero urb status: %d\n",
__func__, urb->status);
goto resubmit;
}
--
2.1.3
next prev parent reply other threads:[~2014-12-20 16:18 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-11 23:29 [PATCH 0/2] usb: serial: handle -ENODEV and -EPROTO quietly Jeremiah Mahler
2014-12-11 23:29 ` [PATCH 1/2] usb: serial: handle -EPROTO quietly in generic_read_bulk Jeremiah Mahler
2014-12-11 23:29 ` [PATCH 2/2] usb: serial: handle -ENODEV quietly in generic_submit_read_urb Jeremiah Mahler
2014-12-16 11:49 ` Johan Hovold
2014-12-15 10:23 ` [PATCH 0/2] usb: serial: handle -ENODEV and -EPROTO quietly Johan Hovold
2014-12-15 12:53 ` Jeremiah Mahler
2014-12-15 16:38 ` Greg Kroah-Hartman
2014-12-16 7:10 ` Jeremiah Mahler
2014-12-16 11:46 ` Johan Hovold
2014-12-16 11:42 ` Johan Hovold
2014-12-20 9:11 ` [PATCH v2 " Jeremiah Mahler
2014-12-20 9:11 ` [PATCH v2 1/2] usb: serial: handle -EPROTO quietly in generic_read_bulk Jeremiah Mahler
2014-12-20 12:32 ` Sergei Shtylyov
2014-12-20 12:59 ` Jeremiah Mahler
2014-12-20 16:17 ` Jeremiah Mahler [this message]
2014-12-20 9:11 ` [PATCH v2 2/2] usb: serial: handle -ENODEV quietly in generic_submit_read_urb Jeremiah Mahler
2015-01-11 0:44 ` [RESEND PATCH v2 0/2] usb: serial: handle -ENODEV and -EPROTO quietly Jeremiah Mahler
2015-01-11 0:44 ` [RESEND PATCH v2 1/2] usb: serial: handle -EPROTO quietly in generic_read_bulk Jeremiah Mahler
2015-01-11 11:36 ` Johan Hovold
2015-01-11 13:31 ` Jeremiah Mahler
2015-01-11 0:44 ` [RESEND PATCH v2 2/2] usb: serial: handle -ENODEV quietly in generic_submit_read_urb Jeremiah Mahler
2015-01-11 13:42 ` [PATCH v3 0/2] usb: serial: silence non-critical unplug read errors Jeremiah Mahler
2015-01-11 13:42 ` [PATCH v3 1/2] usb: serial: silence all non-critical " Jeremiah Mahler
2015-01-11 13:42 ` [PATCH v3 2/2] usb: serial: handle -ENODEV quietly in generic_submit_read_urb Jeremiah Mahler
2015-01-12 9:27 ` [PATCH v3 0/2] usb: serial: silence non-critical unplug read errors Johan Hovold
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