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| author |  Bjorn Helgaas <bhelgaas@google.com>
| 2021-01-27 09:50:41 -0600 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com>
| 2021-01-27 10:12:43 -0600 |
| commit | 40fb68c7725aee024ed99ad38504f5d25820c6f0 (patch) | |
| tree | 453ed4eb6f525db9304b0f5f6eaa08b0bf77a26f /drivers/pci/pci.c | |
| parent | Linux 5.11-rc3 (diff) | |
| download | linux-40fb68c7725aee024ed99ad38504f5d25820c6f0.tar.gz linux-40fb68c7725aee024ed99ad38504f5d25820c6f0.tar.bz2 linux-40fb68c7725aee024ed99ad38504f5d25820c6f0.zip | |
Revert "PCI/ASPM: Save/restore L1SS Capability for suspend/resume"
This reverts commit 4257f7e008ea394fcecc050f1569c3503b8bcc15.
Kenneth reported that after 4257f7e008ea, he sees a torrent of disk I/O
errors on his NVMe device after suspend/resume until a reboot.
Link: https://lore.kernel.org/linux-pci/20201228040513.GA611645@bjorn-Precision-5520/
Reported-by: Kenneth R. Crudup <kenny@panix.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci/pci.c')
| -rw-r--r-- | drivers/pci/pci.c | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index b9fecc25d213..790393d1e318 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -1558,7 +1558,6 @@ int pci_save_state(struct pci_dev *dev) return i; pci_save_ltr_state(dev); - pci_save_aspm_l1ss_state(dev); pci_save_dpc_state(dev); pci_save_aer_state(dev); pci_save_ptm_state(dev); @@ -1665,7 +1664,6 @@ void pci_restore_state(struct pci_dev *dev) * LTR itself (in the PCIe capability). */ pci_restore_ltr_state(dev); - pci_restore_aspm_l1ss_state(dev); pci_restore_pcie_state(dev); pci_restore_pasid_state(dev); @@ -3353,11 +3351,6 @@ void pci_allocate_cap_save_buffers(struct pci_dev *dev) if (error) pci_err(dev, "unable to allocate suspend buffer for LTR\n"); - error = pci_add_ext_cap_save_buffer(dev, PCI_EXT_CAP_ID_L1SS, - 2 * sizeof(u32)); - if (error) - pci_err(dev, "unable to allocate suspend buffer for ASPM-L1SS\n"); - pci_allocate_vc_save_buffers(dev); } |