From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org,
Jimmy Assarsson <jimmyassarsson@gmail.com>,
Marc Kleine-Budde <mkl@pengutronix.de>
Subject: [PATCH 4.4 16/20] can: kvaser_usb: Ignore CMD_FLUSH_QUEUE_REPLY messages
Date: Tue, 31 Oct 2017 10:55:32 +0100 [thread overview]
Message-ID: <20171031095511.074623357@linuxfoundation.org> (raw)
In-Reply-To: <20171031095510.079198256@linuxfoundation.org>
4.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jimmy Assarsson <jimmyassarsson@gmail.com>
commit e1d2d1329a5722dbecc9c278303fcc4aa01f8790 upstream.
To avoid kernel warning "Unhandled message (68)", ignore the
CMD_FLUSH_QUEUE_REPLY message for now.
As of Leaf v2 firmware version v4.1.844 (2017-02-15), flush tx queue is
synchronous. There is a capability bit indicating whether flushing tx
queue is synchronous or asynchronous.
A proper solution would be to query the device for capabilities. If the
synchronous tx flush capability bit is set, we should wait for
CMD_FLUSH_QUEUE_REPLY message, while flushing the tx queue.
Signed-off-by: Jimmy Assarsson <jimmyassarsson@gmail.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/can/usb/kvaser_usb.c | 6 ++++++
1 file changed, 6 insertions(+)
--- a/drivers/net/can/usb/kvaser_usb.c
+++ b/drivers/net/can/usb/kvaser_usb.c
@@ -134,6 +134,7 @@ static inline bool kvaser_is_usbcan(cons
#define CMD_RESET_ERROR_COUNTER 49
#define CMD_TX_ACKNOWLEDGE 50
#define CMD_CAN_ERROR_EVENT 51
+#define CMD_FLUSH_QUEUE_REPLY 68
#define CMD_LEAF_USB_THROTTLE 77
#define CMD_LEAF_LOG_MESSAGE 106
@@ -1297,6 +1298,11 @@ static void kvaser_usb_handle_message(co
goto warn;
break;
+ case CMD_FLUSH_QUEUE_REPLY:
+ if (dev->family != KVASER_LEAF)
+ goto warn;
+ break;
+
default:
warn: dev_warn(dev->udev->dev.parent,
"Unhandled message (%d)\n", msg->id);
next prev parent reply other threads:[~2017-10-31 9:55 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-31 9:55 [PATCH 4.4 00/20] 4.4.96-stable review Greg Kroah-Hartman
2017-10-31 9:55 ` [PATCH 4.4 01/20] workqueue: replace pool->manager_arb mutex with a flag Greg Kroah-Hartman
2017-10-31 9:55 ` [PATCH 4.4 02/20] ALSA: hda/realtek - Add support for ALC236/ALC3204 Greg Kroah-Hartman
2017-10-31 9:55 ` [PATCH 4.4 03/20] ALSA: hda - fix headset mic problem for Dell machines with alc236 Greg Kroah-Hartman
2017-10-31 9:55 ` [PATCH 4.4 04/20] ceph: unlock dangling spinlock in try_flush_caps() Greg Kroah-Hartman
2017-10-31 9:55 ` [PATCH 4.4 05/20] usb: xhci: Handle error condition in xhci_stop_device() Greg Kroah-Hartman
2017-10-31 9:55 ` [PATCH 4.4 06/20] spi: uapi: spidev: add missing ioctl header Greg Kroah-Hartman
2017-10-31 9:55 ` [PATCH 4.4 07/20] fuse: fix READDIRPLUS skipping an entry Greg Kroah-Hartman
2017-10-31 9:55 ` [PATCH 4.4 08/20] xen/gntdev: avoid out of bounds access in case of partial gntdev_mmap() Greg Kroah-Hartman
2017-10-31 9:55 ` [PATCH 4.4 09/20] Input: elan_i2c - add ELAN0611 to the ACPI table Greg Kroah-Hartman
2017-10-31 9:55 ` [PATCH 4.4 10/20] Input: gtco - fix potential out-of-bound access Greg Kroah-Hartman
2017-10-31 9:55 ` [PATCH 4.4 11/20] assoc_array: Fix a buggy node-splitting case Greg Kroah-Hartman
2017-10-31 9:55 ` [PATCH 4.4 12/20] scsi: zfcp: fix erp_action use-before-initialize in REC action trace Greg Kroah-Hartman
2017-10-31 9:55 ` [PATCH 4.4 13/20] scsi: sg: Re-fix off by one in sg_fill_request_table() Greg Kroah-Hartman
2017-10-31 9:55 ` [PATCH 4.4 14/20] can: sun4i: fix loopback mode Greg Kroah-Hartman
2017-10-31 9:55 ` [PATCH 4.4 15/20] can: kvaser_usb: Correct return value in printout Greg Kroah-Hartman
2017-10-31 9:55 ` Greg Kroah-Hartman [this message]
2017-10-31 9:55 ` [PATCH 4.4 17/20] regulator: fan53555: fix I2C device ids Greg Kroah-Hartman
2017-10-31 9:55 ` [PATCH 4.4 18/20] x86/microcode/intel: Disable late loading on model 79 Greg Kroah-Hartman
2017-10-31 9:55 ` [PATCH 4.4 19/20] ecryptfs: fix dereference of NULL user_key_payload Greg Kroah-Hartman
2017-10-31 9:55 ` [PATCH 4.4 20/20] [PATCH] Revert "drm: bridge: add DT bindings for TI ths8135" Greg Kroah-Hartman
2017-10-31 17:19 ` [PATCH 4.4 00/20] 4.4.96-stable review Guenter Roeck
2017-10-31 20:04 ` Shuah Khan
2017-10-31 21:33 ` Tom Gall
2017-11-01 15:22 ` Greg Kroah-Hartman
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20171031095511.074623357@linuxfoundation.org \
--to=gregkh@linuxfoundation.org \
--cc=jimmyassarsson@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mkl@pengutronix.de \
--cc=stable@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).