[net-next 05/13] i40evf: add comment
From: Jeff Kirsher <hidden>
Date: 2017-02-19 06:34:12
Subsystem:
intel ethernet drivers, networking drivers, the rest · Maintainers:
Tony Nguyen, Przemek Kitszel, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Mitch Williams <redacted> Add a comment to reduce confusion. Change-ID: I3d5819c0f3f5174680442ae54398a073d4a61f4f Signed-off-by: Mitch Williams <redacted> Tested-by: Andrew Bowers <redacted> Signed-off-by: Jeff Kirsher <redacted> --- drivers/net/ethernet/intel/i40evf/i40evf_main.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_main.c b/drivers/net/ethernet/intel/i40evf/i40evf_main.c
index 5673dbd2cf7d..f35dcaac5bb7 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf_main.c
+++ b/drivers/net/ethernet/intel/i40evf/i40evf_main.c@@ -2153,6 +2153,11 @@ static int i40evf_close(struct net_device *netdev) adapter->state = __I40EVF_DOWN_PENDING; i40evf_free_traffic_irqs(adapter); + /* We explicitly don't free resources here because the hardware is + * still active and can DMA into memory. Resources are cleared in + * i40evf_virtchnl_completion() after we get confirmation from the PF + * driver that the rings have been stopped. + */ return 0; }
--
2.11.0