Merge branch 'pci/err'

- For drivers using PCI legacy suspend, save config state at suspend so
  that state (not any earlier state from enumeration, probe, or error
  recovery) will be restored when resuming (Lukas Wunner)

- For devices with no driver or a driver that lacks PM, save config state
  at hibernate so that state (not any earlier state from enumeration,
  probe, or error recovery) will be restored when resuming (Lukas Wunner)

- Save device config space on device addition, before driver binding, so
  error recovery works more reliably (Lukas Wunner)

- Drop pci_save_state() from several drivers that no longer need it since
  the PCI core always does it and pci_restore_state() no longer invalidates
  the saved state (Lukas Wunner)

- Document use of pci_save_state() by drivers to capture the state they
  want restored during error recovery (Lukas Wunner)

* pci/err:
  Documentation: PCI: Amend error recovery doc with pci_save_state() rules
  treewide: Drop pci_save_state() after pci_restore_state()
  PCI/ERR: Ensure error recoverability at all times
  PCI/PM: Stop needlessly clearing state_saved on enumeration and thaw
  PCI/PM: Reinstate clearing state_saved in legacy and !PM codepaths

35 files changed, 22 insertions, 64 deletions

diff --git a/Documentation/PCI/pci-error-recovery.rst b/Documentation/PCI/pci-error-recovery.rst
index 5df481ac6193..43bc4e3665b4 100644
--- a/Documentation/PCI/pci-error-recovery.rst
+++ b/Documentation/PCI/pci-error-recovery.rst
@@ -326,6 +326,21 @@ be recovered, there is nothing more that can be done;  the platform
 will typically report a "permanent failure" in such a case.  The
 device will be considered "dead" in this case.
 
+Drivers typically need to call pci_restore_state() after reset to
+re-initialize the device's config space registers and thereby
+bring it from D0\ :sub:`uninitialized` into D0\ :sub:`active` state
+(PCIe r7.0 sec 5.3.1.1).  The PCI core invokes pci_save_state()
+on enumeration after initializing config space to ensure that a
+saved state is available for subsequent error recovery.
+Drivers which modify config space on probe may need to invoke
+pci_save_state() afterwards to record those changes for later
+error recovery.  When going into system suspend, pci_save_state()
+is called for every PCI device and that state will be restored
+not only on resume, but also on any subsequent error recovery.
+In the unlikely event that the saved state recorded on suspend
+is unsuitable for error recovery, drivers should call
+pci_save_state() on resume.
+
 Drivers for multi-function cards will need to coordinate among
 themselves as to which driver instance will perform any "one-shot"
 or global device initialization. For example, the Symbios sym53cxx2
diff --git a/drivers/crypto/intel/qat/qat_common/adf_aer.c b/drivers/crypto/intel/qat/qat_common/adf_aer.c
index 35679b21ff63..9a5a4b35ce71 100644
--- a/drivers/crypto/intel/qat/qat_common/adf_aer.c
+++ b/drivers/crypto/intel/qat/qat_common/adf_aer.c
@@ -105,7 +105,6 @@ void adf_dev_restore(struct adf_accel_dev *accel_dev)
 			 accel_dev->accel_id);
 		hw_device->reset_device(accel_dev);
 		pci_restore_state(pdev);
-		pci_save_state(pdev);
 	}
 }
 
@@ -204,7 +203,6 @@ static pci_ers_result_t adf_slot_reset(struct pci_dev *pdev)
 	if (!pdev->is_busmaster)
 		pci_set_master(pdev);
 	pci_restore_state(pdev);
-	pci_save_state(pdev);
 	res = adf_dev_up(accel_dev, false);
 	if (res && res != -EALREADY)
 		return PCI_ERS_RESULT_DISCONNECT;
diff --git a/drivers/dma/ioat/init.c b/drivers/dma/ioat/init.c
index 02f68b328511..227398673b73 100644
--- a/drivers/dma/ioat/init.c
+++ b/drivers/dma/ioat/init.c
@@ -1286,7 +1286,6 @@ static pci_ers_result_t ioat_pcie_error_slot_reset(struct pci_dev *pdev)
 	} else {
 		pci_set_master(pdev);
 		pci_restore_state(pdev);
-		pci_save_state(pdev);
 		pci_wake_from_d3(pdev, false);
 	}
 
diff --git a/drivers/net/ethernet/broadcom/bnx2.c b/drivers/net/ethernet/broadcom/bnx2.c
index cb1011f6fd30..805daae9dd36 100644
--- a/drivers/net/ethernet/broadcom/bnx2.c
+++ b/drivers/net/ethernet/broadcom/bnx2.c
@@ -6444,7 +6444,6 @@ bnx2_reset_task(struct work_struct *work)
 	if (!(pcicmd & PCI_COMMAND_MEMORY)) {
 		/* in case PCI block has reset */
 		pci_restore_state(bp->pdev);
-		pci_save_state(bp->pdev);
 	}
 	rc = bnx2_init_nic(bp, 1);
 	if (rc) {
@@ -8718,7 +8717,6 @@ static pci_ers_result_t bnx2_io_slot_reset(struct pci_dev *pdev)
 	} else {
 		pci_set_master(pdev);
 		pci_restore_state(pdev);
-		pci_save_state(pdev);
 
 		if (netif_running(dev))
 			err = bnx2_init_nic(bp, 1);
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index f0f05d7315ac..8e6eec828d48 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -14216,7 +14216,6 @@ static pci_ers_result_t bnx2x_io_slot_reset(struct pci_dev *pdev)
 
 	pci_set_master(pdev);
 	pci_restore_state(pdev);
-	pci_save_state(pdev);
 
 	if (netif_running(dev))
 		bnx2x_set_power_state(bp, PCI_D0);
diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 7f00ec7fd7b9..ecc12206a8e9 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -18352,7 +18352,6 @@ static pci_ers_result_t tg3_io_slot_reset(struct pci_dev *pdev)
 
 	pci_set_master(pdev);
 	pci_restore_state(pdev);
-	pci_save_state(pdev);
 
 	if (!netdev || !netif_running(netdev)) {
 		rc = PCI_ERS_RESULT_RECOVERED;
diff --git a/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c b/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c
index f92a3550e480..3b1321c8ed14 100644
--- a/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c
@@ -2933,7 +2933,6 @@ static int t3_reenable_adapter(struct adapter *adapter)
 	}
 	pci_set_master(adapter->pdev);
 	pci_restore_state(adapter->pdev);
-	pci_save_state(adapter->pdev);
 
 	/* Free sge resources */
 	t3_free_sge_resources(adapter);
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index 392723ef14e5..1ce2091cdc01 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -5456,7 +5456,6 @@ static pci_ers_result_t eeh_slot_reset(struct pci_dev *pdev)
 
 	if (!adap) {
 		pci_restore_state(pdev);
-		pci_save_state(pdev);
 		return PCI_ERS_RESULT_RECOVERED;
 	}
 
@@ -5471,7 +5470,6 @@ static pci_ers_result_t eeh_slot_reset(struct pci_dev *pdev)
 
 	pci_set_master(pdev);
 	pci_restore_state(pdev);
-	pci_save_state(pdev);
 
 	if (t4_wait_dev_ready(adap->regs) < 0)
 		return PCI_ERS_RESULT_DISCONNECT;
diff --git a/drivers/net/ethernet/hisilicon/hibmcge/hbg_err.c b/drivers/net/ethernet/hisilicon/hibmcge/hbg_err.c
index 83cf75bf7a17..2eb1e3d699d6 100644
--- a/drivers/net/ethernet/hisilicon/hibmcge/hbg_err.c
+++ b/drivers/net/ethernet/hisilicon/hibmcge/hbg_err.c
@@ -158,7 +158,6 @@ static pci_ers_result_t hbg_pci_err_slot_reset(struct pci_dev *pdev)
 
 	pci_set_master(pdev);
 	pci_restore_state(pdev);
-	pci_save_state(pdev);
 
 	hbg_err_reset(priv);
 	return PCI_ERS_RESULT_RECOVERED;
diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
index 201322dac233..75896602e732 100644
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -7195,7 +7195,6 @@ static pci_ers_result_t e1000_io_slot_reset(struct pci_dev *pdev)
 			"Cannot re-enable PCI device after reset.\n");
 		result = PCI_ERS_RESULT_DISCONNECT;
 	} else {
-		pdev->state_saved = true;
 		pci_restore_state(pdev);
 		pci_set_master(pdev);
 
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_pci.c b/drivers/net/ethernet/intel/fm10k/fm10k_pci.c
index ae5fe34659cf..d75b8a50413d 100644
--- a/drivers/net/ethernet/intel/fm10k/fm10k_pci.c
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_pci.c
@@ -2423,12 +2423,6 @@ static pci_ers_result_t fm10k_io_slot_reset(struct pci_dev *pdev)
 	} else {
 		pci_set_master(pdev);
 		pci_restore_state(pdev);
-
-		/* After second error pci->state_saved is false, this
-		 * resets it so EEH doesn't break.
-		 */
-		pci_save_state(pdev);
-
 		pci_wake_from_d3(pdev, false);
 
 		result = PCI_ERS_RESULT_RECOVERED;
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 50be0a60ae13..d8192aa23254 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -16455,7 +16455,6 @@ static pci_ers_result_t i40e_pci_error_slot_reset(struct pci_dev *pdev)
 	} else {
 		pci_set_master(pdev);
 		pci_restore_state(pdev);
-		pci_save_state(pdev);
 		pci_wake_from_d3(pdev, false);
 
 		reg = rd32(&pf->hw, I40E_GLGEN_RTRIG);
diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
index 86f5859e88ef..6c7dcca7bc44 100644
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -5663,7 +5663,6 @@ static int ice_resume(struct device *dev)
 
 	pci_set_power_state(pdev, PCI_D0);
 	pci_restore_state(pdev);
-	pci_save_state(pdev);
 
 	if (!pci_device_is_present(pdev))
 		return -ENODEV;
@@ -5763,7 +5762,6 @@ static pci_ers_result_t ice_pci_err_slot_reset(struct pci_dev *pdev)
 	} else {
 		pci_set_master(pdev);
 		pci_restore_state(pdev);
-		pci_save_state(pdev);
 		pci_wake_from_d3(pdev, false);
 
 		/* Check for life */
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index 85f9589cc568..dbea37269d2c 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -9599,7 +9599,6 @@ static int __igb_resume(struct device *dev, bool rpm)
 
 	pci_set_power_state(pdev, PCI_D0);
 	pci_restore_state(pdev);
-	pci_save_state(pdev);
 
 	if (!pci_device_is_present(pdev))
 		return -ENODEV;
@@ -9754,7 +9753,6 @@ static pci_ers_result_t igb_io_slot_reset(struct pci_dev *pdev)
 	} else {
 		pci_set_master(pdev);
 		pci_restore_state(pdev);
-		pci_save_state(pdev);
 
 		pci_enable_wake(pdev, PCI_D3hot, 0);
 		pci_enable_wake(pdev, PCI_D3cold, 0);
diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c
index 728d7ca5338b..7aafa60ba0c8 100644
--- a/drivers/net/ethernet/intel/igc/igc_main.c
+++ b/drivers/net/ethernet/intel/igc/igc_main.c
@@ -7530,7 +7530,6 @@ static int __igc_resume(struct device *dev, bool rpm)
 
 	pci_set_power_state(pdev, PCI_D0);
 	pci_restore_state(pdev);
-	pci_save_state(pdev);
 
 	if (!pci_device_is_present(pdev))
 		return -ENODEV;
@@ -7667,7 +7666,6 @@ static pci_ers_result_t igc_io_slot_reset(struct pci_dev *pdev)
 	} else {
 		pci_set_master(pdev);
 		pci_restore_state(pdev);
-		pci_save_state(pdev);
 
 		pci_enable_wake(pdev, PCI_D3hot, 0);
 		pci_enable_wake(pdev, PCI_D3cold, 0);
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 90d4e57b1c93..d65d691ac961 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -12297,7 +12297,6 @@ static pci_ers_result_t ixgbe_io_slot_reset(struct pci_dev *pdev)
 		adapter->hw.hw_addr = adapter->io_addr;
 		pci_set_master(pdev);
 		pci_restore_state(pdev);
-		pci_save_state(pdev);
 
 		pci_wake_from_d3(pdev, false);
 
diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c
index 03d2fc7d9b09..d1fbf37bdaf7 100644
--- a/drivers/net/ethernet/mellanox/mlx4/main.c
+++ b/drivers/net/ethernet/mellanox/mlx4/main.c
@@ -4366,7 +4366,6 @@ static pci_ers_result_t mlx4_pci_slot_reset(struct pci_dev *pdev)
 
 	pci_set_master(pdev);
 	pci_restore_state(pdev);
-	pci_save_state(pdev);
 	return PCI_ERS_RESULT_RECOVERED;
 }
 
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c
index df93625c9dfa..08f777836a8b 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c
@@ -2095,7 +2095,6 @@ static pci_ers_result_t mlx5_pci_slot_reset(struct pci_dev *pdev)
 
 	pci_set_master(pdev);
 	pci_restore_state(pdev);
-	pci_save_state(pdev);
 
 	err = wait_vital(pdev);
 	if (err) {
diff --git a/drivers/net/ethernet/meta/fbnic/fbnic_pci.c b/drivers/net/ethernet/meta/fbnic/fbnic_pci.c
index a7a6b4db8016..0fa90baad5f8 100644
--- a/drivers/net/ethernet/meta/fbnic/fbnic_pci.c
+++ b/drivers/net/ethernet/meta/fbnic/fbnic_pci.c
@@ -574,7 +574,6 @@ static pci_ers_result_t fbnic_err_slot_reset(struct pci_dev *pdev)
 
 	pci_set_power_state(pdev, PCI_D0);
 	pci_restore_state(pdev);
-	pci_save_state(pdev);
 
 	if (pci_enable_device_mem(pdev)) {
 		dev_err(&pdev->dev,
diff --git a/drivers/net/ethernet/microchip/lan743x_main.c b/drivers/net/ethernet/microchip/lan743x_main.c
index 9d70b51ca91d..e4c542fc6c2b 100644
--- a/drivers/net/ethernet/microchip/lan743x_main.c
+++ b/drivers/net/ethernet/microchip/lan743x_main.c
@@ -3915,7 +3915,6 @@ static int lan743x_pm_resume(struct device *dev)
 
 	pci_set_power_state(pdev, PCI_D0);
 	pci_restore_state(pdev);
-	pci_save_state(pdev);
 
 	/* Restore HW_CFG that was saved during pm suspend */
 	if (adapter->is_pci11x1x)
diff --git a/drivers/net/ethernet/myricom/myri10ge/myri10ge.c b/drivers/net/ethernet/myricom/myri10ge/myri10ge.c
index e611ff7fa3fa..7be30a8df268 100644
--- a/drivers/net/ethernet/myricom/myri10ge/myri10ge.c
+++ b/drivers/net/ethernet/myricom/myri10ge/myri10ge.c
@@ -3416,10 +3416,6 @@ static void myri10ge_watchdog(struct work_struct *work)
 		 * nic was resumed from power saving mode.
 		 */
 		pci_restore_state(mgp->pdev);
-
-		/* save state again for accounting reasons */
-		pci_save_state(mgp->pdev);
-
 	} else {
 		/* if we get back -1's from our slot, perhaps somebody
 		 * powered off our card.  Don't try to reset it in
diff --git a/drivers/net/ethernet/neterion/s2io.c b/drivers/net/ethernet/neterion/s2io.c
index 5026b0263d43..1e55ccb4822b 100644
--- a/drivers/net/ethernet/neterion/s2io.c
+++ b/drivers/net/ethernet/neterion/s2io.c
@@ -3425,7 +3425,6 @@ static void s2io_reset(struct s2io_nic *sp)
 
 		/* Restore the PCI state saved during initialization. */
 		pci_restore_state(sp->pdev);
-		pci_save_state(sp->pdev);
 		pci_read_config_word(sp->pdev, 0x2, &val16);
 		if (check_pci_device_id(val16) != (u16)PCI_ANY_ID)
 			break;
diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c
index f26aec6ff588..9daf13ed3714 100644
--- a/drivers/pci/bus.c
+++ b/drivers/pci/bus.c
@@ -357,6 +357,9 @@ void pci_bus_add_device(struct pci_dev *dev)
 	pci_proc_attach_device(dev);
 	pci_bridge_d3_update(dev);
 
+	/* Save config space for error recoverability */
+	pci_save_state(dev);
+
 	/*
 	 * If the PCI device is associated with a pwrctrl device with a
 	 * power supply, create a device link between the PCI device and
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index 302d61783f6c..7c2d9d596258 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -629,6 +629,8 @@ static int pci_legacy_suspend(struct device *dev, pm_message_t state)
 	struct pci_dev *pci_dev = to_pci_dev(dev);
 	struct pci_driver *drv = pci_dev->driver;
 
+	pci_dev->state_saved = false;
+
 	if (drv && drv->suspend) {
 		pci_power_t prev = pci_dev->current_state;
 		int error;
@@ -1036,6 +1038,8 @@ static int pci_pm_freeze(struct device *dev)
 
 	if (!pm) {
 		pci_pm_default_suspend(pci_dev);
+		if (!pm_runtime_suspended(dev))
+			pci_dev->state_saved = false;
 		return 0;
 	}
 
@@ -1129,8 +1133,6 @@ static int pci_pm_thaw(struct device *dev)
 		pci_pm_reenable_device(pci_dev);
 	}
 
-	pci_dev->state_saved = false;
-
 	return error;
 }
 
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index f4ccb948e59d..2856808ca2e1 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -1855,9 +1855,6 @@ static void pci_restore_rebar_state(struct pci_dev *pdev)
  */
 void pci_restore_state(struct pci_dev *dev)
 {
-	if (!dev->state_saved)
-		return;
-
 	pci_restore_pcie_state(dev);
 	pci_restore_pasid_state(dev);
 	pci_restore_pri_state(dev);
diff --git a/drivers/pci/pcie/portdrv.c b/drivers/pci/pcie/portdrv.c
index d1b68c18444f..38a41ccf79b9 100644
--- a/drivers/pci/pcie/portdrv.c
+++ b/drivers/pci/pcie/portdrv.c
@@ -760,7 +760,6 @@ static pci_ers_result_t pcie_portdrv_slot_reset(struct pci_dev *dev)
 	device_for_each_child(&dev->dev, &off, pcie_port_device_iter);
 
 	pci_restore_state(dev);
-	pci_save_state(dev);
 	return PCI_ERS_RESULT_RECOVERED;
 }
 
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index c3f6e2714440..7da9a431e1cc 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -2753,8 +2753,6 @@ void pci_device_add(struct pci_dev *dev, struct pci_bus *bus)
 
 	pci_reassigndev_resource_alignment(dev);
 
-	dev->state_saved = false;
-
 	pci_init_capabilities(dev);
 
 	/*
diff --git a/drivers/scsi/bfa/bfad.c b/drivers/scsi/bfa/bfad.c
index ff9adfc0b332..bdfd06516671 100644
--- a/drivers/scsi/bfa/bfad.c
+++ b/drivers/scsi/bfa/bfad.c
@@ -1528,7 +1528,6 @@ bfad_pci_slot_reset(struct pci_dev *pdev)
 		goto out_disable_device;
 	}
 
-	pci_save_state(pdev);
 	pci_set_master(pdev);
 
 	rc = dma_set_mask_and_coherent(&bfad->pcidev->dev, DMA_BIT_MASK(64));
diff --git a/drivers/scsi/csiostor/csio_init.c b/drivers/scsi/csiostor/csio_init.c
index 79c8dafdd49e..db0c2174430a 100644
--- a/drivers/scsi/csiostor/csio_init.c
+++ b/drivers/scsi/csiostor/csio_init.c
@@ -1093,7 +1093,6 @@ csio_pci_slot_reset(struct pci_dev *pdev)
 
 	pci_set_master(pdev);
 	pci_restore_state(pdev);
-	pci_save_state(pdev);
 
 	/* Bring HW s/m to ready state.
 	 * but don't resume IOs.
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index 44214884deaf..95123689e9d1 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -7859,7 +7859,6 @@ static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
 	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
 
 	ENTER;
-	ioa_cfg->pdev->state_saved = true;
 	pci_restore_state(ioa_cfg->pdev);
 
 	if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index f206267d9ecd..065eb91de9c0 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -14434,12 +14434,6 @@ lpfc_io_slot_reset_s3(struct pci_dev *pdev)
 
 	pci_restore_state(pdev);
 
-	/*
-	 * As the new kernel behavior of pci_restore_state() API call clears
-	 * device saved_state flag, need to save the restored state again.
-	 */
-	pci_save_state(pdev);
-
 	if (pdev->is_busmaster)
 		pci_set_master(pdev);
 
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 5ffd94586652..9007533e36e0 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -7886,11 +7886,6 @@ qla2xxx_pci_slot_reset(struct pci_dev *pdev)
 
 	pci_restore_state(pdev);
 
-	/* pci_restore_state() clears the saved_state flag of the device
-	 * save restored state which resets saved_state flag
-	 */
-	pci_save_state(pdev);
-
 	if (ha->mem_only)
 		rc = pci_enable_device_mem(pdev);
 	else
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index a761c0aa5127..1f52379bc0b5 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -9796,11 +9796,6 @@ qla4xxx_pci_slot_reset(struct pci_dev *pdev)
 	 */
 	pci_restore_state(pdev);
 
-	/* pci_restore_state() clears the saved_state flag of the device
-	 * save restored state which resets saved_state flag
-	 */
-	pci_save_state(pdev);
-
 	/* Initialize device or resume if in suspended state */
 	rc = pci_enable_device(pdev);
 	if (rc) {
diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
index 152f914c599d..65bd370f282a 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -6178,7 +6178,6 @@ static pci_ers_result_t serial8250_io_slot_reset(struct pci_dev *dev)
 		return PCI_ERS_RESULT_DISCONNECT;
 
 	pci_restore_state(dev);
-	pci_save_state(dev);
 
 	return PCI_ERS_RESULT_RECOVERED;
 }
diff --git a/drivers/tty/serial/jsm/jsm_driver.c b/drivers/tty/serial/jsm/jsm_driver.c
index 417a5b6bffc3..8d21373cae57 100644
--- a/drivers/tty/serial/jsm/jsm_driver.c
+++ b/drivers/tty/serial/jsm/jsm_driver.c
@@ -355,7 +355,6 @@ static void jsm_io_resume(struct pci_dev *pdev)
 	struct jsm_board *brd = pci_get_drvdata(pdev);
 
 	pci_restore_state(pdev);
-	pci_save_state(pdev);
 
 	jsm_uart_port_init(brd);
 }