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PCI/AER: Clear only ERR_NONFATAL bits during non-fatal recovery

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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>
This commit is contained in:
Oza Pawandeep 2018-07-19 17:58:05 -05:00 committed by Bjorn Helgaas
parent 7ab92e89bf
commit e7b0b847de
1 changed files with 4 additions and 1 deletions
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5
drivers/pci/pcie/aer.c
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@ -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);