Re: [PATCH 0/6] PCI/AER: Support Advisory Non-Fatal Errors

[Bjorn Helgaas <helgaas@kernel.org>]

On Fri, Jul 24, 2026 at 05:24:00PM +0200, Lukas Wunner wrote:
> PCIe r7.0 sec 6.2.4.3 specifies that certain Non-Fatal Errors may be
> signaled with ERR_COR instead of ERR_NONFATAL.  These so-called Advisory
> Non-Fatal Errors are masked by default and hence not reported by Linux.
> 
> This series seeks to change that.  The meat of it is in patch [6/6].
> There have been several previous attempts to support Advisory Non-Fatal
> Errors which are all linked in the patch.
> 
> The preceding patches contain prep work.  In particular, they ensure that
> the detecting agent and layer is reported correctly for each error (patch
> [1/6] and [2/6]), simplify logging of the error source (patch [3/6]),
> fix reporting of the TLP Prefix/Header Log (patch [4/6]) and move code
> around (patch [5/6]).
> 
> The patches have been tested internally, but further testing would be
> appreciated to raise the confidence.  Thanks!
> 
> Lukas Wunner (6):
>   PCI/AER: Fix mapping of errors to agent & layer
>   PCI/AER: Log agent & layer for each individual error
>   PCI/AER: Deduplicate logging of Error Source Identification
>   PCI/AER: Emit TLP Log only for unmasked errors
>   PCI/AER: Move retrieval of FEP and TLP Log into helper
>   PCI/AER: Support Advisory Non-Fatal Errors
> 
>  drivers/pci/pci.h      |   4 +
>  drivers/pci/pcie/aer.c | 250 ++++++++++++++++++++++++++++++++---------
>  2 files changed, 200 insertions(+), 54 deletions(-)

Applied to pci/aer with the intention of v7.3, thank you!

I noticed a sashiko comment on 6/6 but haven't had time to look at it
yet.  I left the series on pci/aer for build testing in the meantime.