Re: [PATCH v6 10/10] RAS: add firmware-first CPER provider

Julian Braha <[email protected]> Wed, 17 Jun 2026 18:40:05 +0100
Newsgroups dev.linux.lists.acpica-devel,org.kernel.vger.linux-acpi,org.kernel.vger.linux-cxl,org.kernel.vger.linux-devicetree,org.kernel.vger.linux-doc,org.kernel.vger.linux-edac,org.kernel.vger.linux-kernel
Message-ID <[email protected]>
Hi again Ahmed,

On 6/17/26 14:54, Ahmed Tiba wrote:
> +config RAS_CPER_ESOURCE
> +	bool "Firmware-first CPER error source block provider"
> +	select GHES_CPER_HELPERS
> +	help
> +	  Enable support for firmware-first Common Platform Error Record
> +	  (CPER) error source block providers. The current in-tree user is
> +	  described by the arm,ras-cper DeviceTree binding. The driver
> +	  reuses the existing GHES CPER helpers so the error processing
> +	  matches the ACPI code paths, but it can be built even when ACPI is
> +	  disabled.

Yep, sure enough, this patch causes a build error when you enable
RAS_CPER_ESOURCE without enabling ACPI:

drivers/firmware/efi/cper-x86.c: In function ‘cper_print_proc_ia’:
drivers/firmware/efi/cper-x86.c:352:21: error: implicit declaration of
function ‘arch_apei_report_x86_error’ [-Wimplicit-function-declaration]
  352 |                     arch_apei_report_x86_error(ctx_info,
proc->lapic_id)) {
      |                     ^~~~~~~~~~~~~~~~~~~~~~~~~~

- Julian Braha