Re: [PATCH v4 1/8] PCI/AER: Remove ID from aer_agent_string[]
From: Bjorn Helgaas <helgaas@kernel.org>
Date: 2021-10-21 01:28:31
Also in:
linux-kernel-mentees, linux-pci, lkml
On Tue, Oct 05, 2021 at 10:48:08PM +0530, Naveen Naidu wrote:
Currently, we do not print the "id" field in the AER error logs. Yet the aer_agent_string[] has the word "id" in it. The AER error log looks like: pcieport 0000:00:03.0: PCIe Bus Error: severity=Corrected, type=Data Link Layer, (Receiver ID) Without the "id" field in the error log, The aer_agent_string[] (eg: "Receiver ID") does not make sense. A user reading the aer_agent_string[] in the log, might inadvertently look for an "id" field and not finding it might lead to confusion. Remove the "ID" from the aer_agent_string[]. The following are sample dummy errors inject via aer-inject.
I like this, and the problem it fixes was my fault because these "ID" strings should have been removed by 010caed4ccb6. If it's straightforward enough, it would be nice to have the aer-inject command line here in the commit log to make it easier for people to play with this.
quoted hunk ↗ jump to hunk
Before ======= In 010caed4ccb6 ("PCI/AER: Decode Error Source Requester ID"), the "id" field was removed from the AER error logs, so currently AER logs look like: pcieport 0000:00:03.0: AER: Corrected error received: 0000:00:03:0 pcieport 0000:00:03.0: PCIe Bus Error: severity=Corrected, type=Data Link Layer, (Receiver ID) <--- no id field pcieport 0000:00:03.0: device [1b36:000c] error status/mask=00000040/0000e000 pcieport 0000:00:03.0: [ 6] BadTLP After ====== pcieport 0000:00:03.0: AER: Corrected error received: 0000:00:03.0 pcieport 0000:00:03.0: PCIe Bus Error: severity=Corrected, type=Data Link Layer, (Receiver) pcieport 0000:00:03.0: device [1b36:000c] error status/mask=00000040/0000e000 pcieport 0000:00:03.0: [ 6] BadTLP Signed-off-by: Naveen Naidu <redacted> --- drivers/pci/pcie/aer.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-)diff --git a/drivers/pci/pcie/aer.c b/drivers/pci/pcie/aer.c index 9784fdcf3006..241ff361b43c 100644 --- a/drivers/pci/pcie/aer.c +++ b/drivers/pci/pcie/aer.c@@ -516,10 +516,10 @@ static const char *aer_uncorrectable_error_string[] = { }; static const char *aer_agent_string[] = { - "Receiver ID", - "Requester ID", - "Completer ID", - "Transmitter ID" + "Receiver", + "Requester", + "Completer", + "Transmitter" }; #define aer_stats_dev_attr(name, stats_array, strings_array, \@@ -703,7 +703,7 @@ void aer_print_error(struct pci_dev *dev, struct aer_err_info *info) const char *level; if (!info->status) { - pci_err(dev, "PCIe Bus Error: severity=%s, type=Inaccessible, (Unregistered Agent ID)\n", + pci_err(dev, "PCIe Bus Error: severity=%s, type=Inaccessible, (Unregistered Agent)\n", aer_error_severity_string[info->severity]); goto out; }-- 2.25.1 _______________________________________________ Linux-kernel-mentees mailing list Linux-kernel-mentees@lists.linuxfoundation.org https://lists.linuxfoundation.org/mailman/listinfo/linux-kernel-mentees