[02/15] ethernet/839: use new module_firmware_crashed()

Message ID 20200509043552.8745-3-mcgrof@kernel.org
State New
Headers show
Series
  • net: taint when the device driver firmware crashes
Related show

Commit Message

Luis Chamberlain May 9, 2020, 4:35 a.m.
This makes use of the new module_firmware_crashed() to help
annotate when firmware for device drivers crash. When firmware
crashes devices can sometimes become unresponsive, and recovery
sometimes requires a driver unload / reload and in the worst cases
a reboot.

Using a taint flag allows us to annotate when this happens clearly.

Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Shannon Nelson <snelson@pensando.io>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
---
 drivers/net/ethernet/8390/axnet_cs.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

Patch

diff --git a/drivers/net/ethernet/8390/axnet_cs.c b/drivers/net/ethernet/8390/axnet_cs.c
index aeae7966a082..8ad0200db8e9 100644
--- a/drivers/net/ethernet/8390/axnet_cs.c
+++ b/drivers/net/ethernet/8390/axnet_cs.c
@@ -1358,9 +1358,11 @@  static void ei_receive(struct net_device *dev)
 		 */
 		if ((netif_msg_rx_err(ei_local)) &&
 		    this_frame != ei_local->current_page &&
-		    (this_frame != 0x0 || rxing_page != 0xFF))
+		    (this_frame != 0x0 || rxing_page != 0xFF)) {
+			module_firmware_crashed();
 			netdev_err(dev, "mismatched read page pointers %2x vs %2x\n",
 				   this_frame, ei_local->current_page);
+		}
 		
 		if (this_frame == rxing_page)	/* Read all the frames? */
 			break;				/* Done for now */