Thread (2 messages) flat view 2 messages, 2 authors, 2021-09-23
STALE1786d

[PATCH net 1/1] atlantic: Fix issue in the pm resume flow.

From: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Date: 2021-09-23 10:16:39
Subsystem: aquantia ethernet driver (atlantic), networking drivers, the rest · Maintainers: Sukhdeep Singh, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds

After fixing hibernation resume flow, another usecase was found which
should be explicitly handled - resume when device is in "down" state.
Invoke aq_nic_init jointly with aq_nic_start only if ndev was already
up during suspend/hibernate. We still need to perform nic_deinit() if
caller requests for it, to handle the freeze/resume scenarios.

Fixes: 57f780f1c433 ("atlantic: Fix driver resume flow.")
Signed-off-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: Igor Russkikh <redacted>
---
 drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c b/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c
index dee9ff74d6d6..d4b1976ee69b 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c
@@ -413,13 +413,13 @@ static int atl_resume_common(struct device *dev, bool deep)
 	if (deep) {
 		/* Reinitialize Nic/Vecs objects */
 		aq_nic_deinit(nic, !nic->aq_hw->aq_nic_cfg->wol);
+	}
 
+	if (netif_running(nic->ndev)) {
 		ret = aq_nic_init(nic);
 		if (ret)
 			goto err_exit;
-	}
 
-	if (netif_running(nic->ndev)) {
 		ret = aq_nic_start(nic);
 		if (ret)
 			goto err_exit;
-- 
2.27.0
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