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authorOza Pawandeep <poza@codeaurora.org>2018-07-19 17:58:05 -0500
committerBjorn Helgaas <bhelgaas@google.com>2018-07-20 15:27:08 -0500
commite7b0b847de6db161e3917732276e425bc92a2feb (patch)
tree5eb8faf9a1814f1b863ba66334cae54a5c78d212 /drivers/pci/pcie/aer.c
parent7ab92e89bf8b0a93f0d53b6d83270e4cd0f7c563 (diff)
PCI/AER: Clear only ERR_NONFATAL bits during non-fatal recovery
pci_cleanup_aer_uncorrect_error_status() is called by driver .slot_reset() methods when handling ERR_NONFATAL errors. Previously this cleared *all* the bits, including ERR_FATAL bits. Since we're only handling ERR_NONFATAL errors, clear only the ERR_NONFATAL error status bits. Signed-off-by: Oza Pawandeep <poza@codeaurora.org> [bhelgaas: split to separate patch] Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci/pcie/aer.c')
-rw-r--r--drivers/pci/pcie/aer.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/pci/pcie/aer.c b/drivers/pci/pcie/aer.c
index b776a768a434..f853e72524be 100644
--- a/drivers/pci/pcie/aer.c
+++ b/drivers/pci/pcie/aer.c
@@ -385,13 +385,16 @@ 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, sev;
pos = dev->aer_cap;
if (!pos)
return -EIO;
+ /* Clear status bits for ERR_NONFATAL errors only */
pci_read_config_dword(dev, pos + PCI_ERR_UNCOR_STATUS, &status);
+ pci_read_config_dword(dev, pos + PCI_ERR_UNCOR_SEVER, &sev);
+ status &= ~sev;
if (status)
pci_write_config_dword(dev, pos + PCI_ERR_UNCOR_STATUS, status);