diff options
| author | Lukas Wunner <lukas@wunner.de> | 2026-07-24 17:24:04 +0200 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2026-07-24 17:34:31 -0500 |
| commit | a8bf2dd750de7d682fdaa2127f4e3217ce9c4a82 (patch) | |
| tree | 0c4fe42dfd26523e98b9df7464cd947e62b0bf1e | |
| parent | 8446e1147f65563d374ffa54dc3ba81adb1342c5 (diff) | |
| download | linux-next-a8bf2dd750de7d682fdaa2127f4e3217ce9c4a82.tar.gz linux-next-a8bf2dd750de7d682fdaa2127f4e3217ce9c4a82.zip | |
PCI/AER: Emit TLP Log only for unmasked errors
Per PCIe r7.0 sec 6.2.5, the prefix and header of an offending TLP is only
recorded for unmasked Uncorrectable Errors. Yet when the AER driver
determines whether a prefix and header has been logged, it does not take
the Uncorrectable Error Mask Register into account. Fix it.
Fixes: 6c2b374d7485 ("PCI-Express AER implemetation: AER core and aerdriver")
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: stable@vger.kernel.org # v2.6.19+
Link: https://patch.msgid.link/2e712b96ba5bfc729d78bfc23f7fb7d285aa3d6d.1784905909.git.lukas@wunner.de
| -rw-r--r-- | drivers/pci/pcie/aer.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/pci/pcie/aer.c b/drivers/pci/pcie/aer.c index c21139b9079b..4d1d99662086 100644 --- a/drivers/pci/pcie/aer.c +++ b/drivers/pci/pcie/aer.c @@ -954,7 +954,8 @@ void pci_print_aer(struct pci_dev *dev, int aer_severity, status = aer->uncor_status; mask = aer->uncor_mask; info.level = KERN_ERR; - tlp_header_valid = tlp_header_logged(status, aer->cap_control); + tlp_header_valid = tlp_header_logged(status & ~mask, + aer->cap_control); } info.status = status; @@ -1343,7 +1344,7 @@ int aer_get_device_error_info(struct aer_err_info *info, int i) pci_read_config_dword(dev, aer + PCI_ERR_CAP, &aercc); info->first_error = PCI_ERR_CAP_FEP(aercc); - if (tlp_header_logged(info->status, aercc)) { + if (tlp_header_logged(info->status & ~info->mask, aercc)) { info->tlp_header_valid = 1; pcie_read_tlp_log(dev, aer + PCI_ERR_HEADER_LOG, aer + PCI_ERR_PREFIX_LOG, |