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authorArun Easi <[email protected]>2021-04-09 14:51:53 -0700
committerBjorn Helgaas <[email protected]>2021-04-30 14:38:32 -0500
commite00dc69b5f17c444a38cd9745a0f76bc989b3af4 (patch)
tree825dc812aadce634fa77d6cb9a356456fb1bc3cb /drivers/pci/controller/dwc
parent5881b38912f3f48a4bd74a4eed58be12df012063 (diff)
PCI: Allow VPD access for QLogic ISP2722
0d5370d1d852 ("PCI: Prevent VPD access for QLogic ISP2722") disabled access to VPD of the ISP2722-based 16/32Gb Fibre Channel to PCIe Adapter because reading past the end of the VPD caused NMIs. 104daa71b396 ("PCI: Determine actual VPD size on first access") limits reads to the actual size of VPD, which should prevent these NMIs. 104daa71b396 was merged *before* 0d5370d1d852, but we think the testing that prompted 0d5370d1d852 ("PCI: Prevent VPD access for QLogic ISP2722") was done with a kernel that lacked 104daa71b396. See [1, 2]. Remove the quirk added by 0d5370d1d852 ("PCI: Prevent VPD access for QLogic ISP2722") so customers can read the HBA VPD. [1] https://lore.kernel.org/linux-pci/alpine.LRH.2.21.9999.2012161641230.28924@irv1user01.caveonetworks.com/ [2] https://lore.kernel.org/linux-pci/alpine.LRH.2.21.9999.2104071535110.13940@irv1user01.caveonetworks.com/ [bhelgaas: commit log] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arun Easi <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]> Cc: [email protected] # v4.6+
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