From: Steve Hodgson Date: Tue, 1 Jun 2010 11:17:24 +0000 (+0000) Subject: sfc: Reschedule any resets scheduled inside efx_pm_freeze() X-Git-Tag: v2.6.36-rc1~571^2~704 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=319ba649af30321ea221740833785b46e1fe6af3;p=platform%2Fkernel%2Flinux-stable.git 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 Signed-off-by: David S. Miller --- 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 @@ static void efx_reset_work(struct work_struct *data) { 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 @@ static int efx_pm_thaw(struct device *dev) efx->type->resume_wol(efx); + /* Reschedule any quenched resets scheduled during efx_pm_freeze() */ + queue_work(reset_workqueue, &efx->reset_work); + return 0; }