From 059ff69b5fa136a23a2d71df6d9814e86485e8b9 Mon Sep 17 00:00:00 2001 From: Greg Rose Date: Mon, 16 May 2016 10:26:38 -0700 Subject: [PATCH] i40e: Save PCI state before suspend The i40e_suspend() function was failing to save PCI state and this would result in a kernel stack trace from a WARN_ONCE in the pci_legacy_suspend() function. Add a call to pci_save_state() to fix that problem. Change-ID: I4736e62bb660966bd208cc8af617a14cb07fc4bd Signed-off-by: Greg Rose Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/i40e/i40e_main.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index e071c227c684..52d9d28d677d 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -11441,6 +11441,7 @@ static int i40e_suspend(struct pci_dev *pdev, pm_message_t state) { struct i40e_pf *pf = pci_get_drvdata(pdev); struct i40e_hw *hw = &pf->hw; + int retval = 0; set_bit(__I40E_SUSPENDED, &pf->state); set_bit(__I40E_DOWN, &pf->state); @@ -11454,10 +11455,14 @@ static int i40e_suspend(struct pci_dev *pdev, pm_message_t state) i40e_stop_misc_vector(pf); + retval = pci_save_state(pdev); + if (retval) + return retval; + pci_wake_from_d3(pdev, pf->wol_en); pci_set_power_state(pdev, PCI_D3hot); - return 0; + return retval; } /** -- 2.20.1