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authorBjorn Helgaas <bhelgaas@google.com>2022-05-24 16:42:21 -0500
committerBjorn Helgaas <bhelgaas@google.com>2022-05-24 16:42:21 -0500
commit55fd033bae79a2d51a1804f10dc54b1182a8aa32 (patch)
tree231f19292b0de4bcb2745569e26e1169df54a510 /drivers/pci
parentae0d0d18a8056b59a84384d617eeca3e6c43ccc4 (diff)
parent203926da2bff8e172200a2f11c758987af112d4a (diff)
downloadlinux-55fd033bae79a2d51a1804f10dc54b1182a8aa32.tar.gz
Merge branch 'pci/error'
- Clear AER "multiple errors" bits to avoid race that left them set forever
  (Kuppuswamy Sathyanarayanan)

* pci/error:
  PCI/AER: Clear MULTI_ERR_COR/UNCOR_RCV bits
Diffstat (limited to 'drivers/pci')
-rw-r--r--drivers/pci/pcie/aer.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/pci/pcie/aer.c b/drivers/pci/pcie/aer.c
index 9fa1f97e5b27..7952e5efd6cf 100644
--- a/drivers/pci/pcie/aer.c
+++ b/drivers/pci/pcie/aer.c
@@ -101,6 +101,11 @@ struct aer_stats {
 #define ERR_COR_ID(d)			(d & 0xffff)
 #define ERR_UNCOR_ID(d)			(d >> 16)
 
+#define AER_ERR_STATUS_MASK		(PCI_ERR_ROOT_UNCOR_RCV |	\
+					PCI_ERR_ROOT_COR_RCV |		\
+					PCI_ERR_ROOT_MULTI_COR_RCV |	\
+					PCI_ERR_ROOT_MULTI_UNCOR_RCV)
+
 static int pcie_aer_disable;
 static pci_ers_result_t aer_root_reset(struct pci_dev *dev);
 
@@ -1196,7 +1201,7 @@ static irqreturn_t aer_irq(int irq, void *context)
 	struct aer_err_source e_src = {};
 
 	pci_read_config_dword(rp, aer + PCI_ERR_ROOT_STATUS, &e_src.status);
-	if (!(e_src.status & (PCI_ERR_ROOT_UNCOR_RCV|PCI_ERR_ROOT_COR_RCV)))
+	if (!(e_src.status & AER_ERR_STATUS_MASK))
 		return IRQ_NONE;
 
 	pci_read_config_dword(rp, aer + PCI_ERR_ROOT_ERR_SRC, &e_src.id);