Re: [PATCH v19 10/14] cxl: Update CXL Endpoint AER handler

Alison Schofield <[email protected]> Mon, 3 Aug 2026 19:17:39 -0700
Newsgroups org.kernel.vger.linux-cxl,org.kernel.vger.linux-acpi,org.kernel.vger.linux-doc,org.kernel.vger.linux-kernel,org.kernel.vger.linux-pci
Message-ID <[email protected]>
On Mon, Aug 03, 2026 at 05:18:06PM -0500, Terry Bowman wrote:
> Rename cxl_error_detected() to cxl_pci_error_detected() and rename
> the struct pci_error_handlers instance to cxl_pci_error_handlers to
> avoid shadowing the struct type tag.
> 
> Document the unconditional CXL RAS read policy: on a dead link,
> readl() returns 0xFFFFFFFF which is interpreted as UCE bits set and
> triggers a panic. If RAS registers are not mapped the read is
> skipped and the frozen/perm_failure switch cases defer to AER
> recovery for devices without active CXL.mem traffic.

Reviewed-by: Alison Schofield <[email protected]>