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From: Oza Pawandeep <poza@codeaurora.org>
To: Bjorn Helgaas <bhelgaas@google.com>,
	Philippe Ombredanne <pombredanne@nexb.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Kate Stewart <kstewart@linuxfoundation.org>,
	linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org,
	Dongdong Liu <liudongdong3@huawei.com>,
	Keith Busch <keith.busch@intel.com>, Wei Zhang <wzhang@fb.com>,
	Sinan Kaya <okaya@codeaurora.org>,
	Timur Tabi <timur@codeaurora.org>
Cc: Oza Pawandeep <poza@codeaurora.org>
Subject: [PATCH NEXT 1/6] PCI/AER: Take mask into account while clearing error bits
Date: Thu,  7 Jun 2018 02:00:29 -0400	[thread overview]
Message-ID: <1528351234-26914-1-git-send-email-poza@codeaurora.org> (raw)

PCIe ERR_NONFATAL and ERR_FATAL are uncorrectable errors, and clearing
uncorrectable error bits should take error mask into account.

Signed-off-by: Oza Pawandeep <poza@codeaurora.org>

diff --git a/drivers/pci/pcie/aer/aerdrv.c b/drivers/pci/pcie/aer/aerdrv.c
index 377e576..8cbc62b 100644
--- a/drivers/pci/pcie/aer/aerdrv.c
+++ b/drivers/pci/pcie/aer/aerdrv.c
@@ -341,8 +341,6 @@ static pci_ers_result_t aer_root_reset(struct pci_dev *dev)
  */
 static void aer_error_resume(struct pci_dev *dev)
 {
-	int pos;
-	u32 status, mask;
 	u16 reg16;
 
 	/* Clean up Root device status */
@@ -350,11 +348,7 @@ static void aer_error_resume(struct pci_dev *dev)
 	pcie_capability_write_word(dev, PCI_EXP_DEVSTA, reg16);
 
 	/* Clean AER Root Error Status */
-	pos = dev->aer_cap;
-	pci_read_config_dword(dev, pos + PCI_ERR_UNCOR_STATUS, &status);
-	pci_read_config_dword(dev, pos + PCI_ERR_UNCOR_SEVER, &mask);
-	status &= ~mask; /* Clear corresponding nonfatal bits */
-	pci_write_config_dword(dev, pos + PCI_ERR_UNCOR_STATUS, status);
+	pci_cleanup_aer_uncorrect_error_status(dev);
 }
 
 /**
diff --git a/drivers/pci/pcie/aer/aerdrv_core.c b/drivers/pci/pcie/aer/aerdrv_core.c
index 946f3f6..309f3f5 100644
--- a/drivers/pci/pcie/aer/aerdrv_core.c
+++ b/drivers/pci/pcie/aer/aerdrv_core.c
@@ -50,13 +50,17 @@ EXPORT_SYMBOL_GPL(pci_disable_pcie_error_reporting);
 int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev)
 {
 	int pos;
-	u32 status;
+	u32 status, mask;
 
 	pos = dev->aer_cap;
 	if (!pos)
 		return -EIO;
 
+	/* Clean AER Root Error Status */
+	pos = dev->aer_cap;
 	pci_read_config_dword(dev, pos + PCI_ERR_UNCOR_STATUS, &status);
+	pci_read_config_dword(dev, pos + PCI_ERR_UNCOR_SEVER, &mask);
+	status &= ~mask; /* Clear corresponding nonfatal bits */
 	if (status)
 		pci_write_config_dword(dev, pos + PCI_ERR_UNCOR_STATUS, status);
 
-- 
2.7.4

             reply	other threads:[~2018-06-07  6:00 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-06-07  6:00 Oza Pawandeep [this message]
2018-06-07  6:00 ` [PATCH NEXT 2/6] PCI/AER: Clear uncorrectable fatal error status bits Oza Pawandeep
2018-06-07  6:00 ` [PATCH NEXT 3/6] PCI/ERR: Cleanup ERR_FATAL of error broadcast Oza Pawandeep
2018-06-07  6:00 ` [PATCH NEXT 4/6] PCI/AER: Clear device status error bits during ERR_FATAL and ERR_NONFATAL Oza Pawandeep
2018-06-07  6:00 ` [PATCH NEXT 5/6] PCI/AER: Clear correctable status bits in device register Oza Pawandeep
2018-06-07  6:00 ` [PATCH NEXT 6/6] PCI/PORTDRV: Remove ERR_FATAL handling from pcie_portdrv_slot_reset() Oza Pawandeep
2018-06-07 13:48   ` poza
2018-06-07 21:34     ` Bjorn Helgaas
2018-06-08  4:47       ` poza
2018-06-08 22:43         ` Keith Busch
2018-06-08  4:57       ` poza
2018-06-08 10:41         ` okaya
2018-06-11 10:01       ` poza
2018-06-11 12:50         ` poza
2018-06-07 13:21 ` [PATCH NEXT 1/6] PCI/AER: Take mask into account while clearing error bits Bjorn Helgaas
2018-06-07 13:44   ` poza

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