sfc: Reschedule any resets scheduled inside efx_pm_freeze()
efx_pm_freeze() sets efx->state = STATE_FINI, which means
efx_reset_work() will abort any scheduled resets.
efx_pm_thaw() should reschedule efx_reset_work() again,
since a freeze/thaw will not have reset the hardware.
This bug was spotted by inspection - there is no real world example of
this happening.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c
index 1564605..0319000 100644
--- a/drivers/net/sfc/efx.c
+++ b/drivers/net/sfc/efx.c
@@ -1886,6 +1886,9 @@
{
struct efx_nic *efx = container_of(data, struct efx_nic, reset_work);
+ if (efx->reset_pending == RESET_TYPE_NONE)
+ return;
+
/* If we're not RUNNING then don't reset. Leave the reset_pending
* flag set so that efx_pci_probe_main will be retried */
if (efx->state != STATE_RUNNING) {
@@ -2332,6 +2335,9 @@
efx->type->resume_wol(efx);
+ /* Reschedule any quenched resets scheduled during efx_pm_freeze() */
+ queue_work(reset_workqueue, &efx->reset_work);
+
return 0;
}