linux-kernel - [PATCH 3/6 v6] acpi/ghes: Make GHES select ACPI_APEI

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Message-ID: <20251023122612.1326748-4-fabio.m.de.francesco@linux.intel.com>
Date: Thu, 23 Oct 2025 14:25:38 +0200
From: "Fabio M. De Francesco" <fabio.m.de.francesco@...ux.intel.com>
To: linux-cxl@...r.kernel.org
Cc: "Rafael J . Wysocki" <rafael@...nel.org>,
	Len Brown <lenb@...nel.org>,
	Tony Luck <tony.luck@...el.com>,
	Borislav Petkov <bp@...en8.de>,
	Hanjun Guo <guohanjun@...wei.com>,
	Mauro Carvalho Chehab <mchehab@...nel.org>,
	Shuai Xue <xueshuai@...ux.alibaba.com>,
	Davidlohr Bueso <dave@...olabs.net>,
	Jonathan Cameron <jonathan.cameron@...wei.com>,
	Dave Jiang <dave.jiang@...el.com>,
	Alison Schofield <alison.schofield@...el.com>,
	Vishal Verma <vishal.l.verma@...el.com>,
	Ira Weiny <ira.weiny@...el.com>,
	Dan Williams <dan.j.williams@...el.com>,
	Mahesh J Salgaonkar <mahesh@...ux.ibm.com>,
	Oliver O'Halloran <oohall@...il.com>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Sunil V L <sunilvl@...tanamicro.com>,
	Xiaofei Tan <tanxiaofei@...wei.com>,
	Mario Limonciello <mario.limonciello@....com>,
	Huacai Chen <chenhuacai@...nel.org>,
	Heinrich Schuchardt <heinrich.schuchardt@...onical.com>,
	Arnd Bergmann <arnd@...db.de>,
	"Fabio M . De Francesco" <fabio.m.de.francesco@...ux.intel.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...nel.org>,
	Guo Weikang <guoweikang.kernel@...il.com>,
	Xin Li <xin@...or.com>,
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	Li Ming <ming.li@...omail.com>,
	Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
	Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@...ux.intel.com>,
	Karolina Stolarek <karolina.stolarek@...cle.com>,
	Jon Pan-Doh <pandoh@...gle.com>,
	Lukas Wunner <lukas@...ner.de>,
	Shiju Jose <shiju.jose@...wei.com>,
	linux-kernel@...r.kernel.org,
	linux-acpi@...r.kernel.org,
	linuxppc-dev@...ts.ozlabs.org,
	linux-pci@...r.kernel.org
Subject: [PATCH 3/6 v6] acpi/ghes: Make GHES select ACPI_APEI_PCIEAER

GHES handles the PCI Express Error Section and also the Compute Express
Link (CXL) Protocol Error Section. Two of its functions depend on the
APEI PCIe AER logging/recovering support (ACPI_APEI_PCIEAER).

Make GHES select ACPI_APEI_PCIEAER and remove the conditional
compilation from the body of two static functions that handle the CPER
Error Sections mentioned above.

Signed-off-by: Fabio M. De Francesco <fabio.m.de.francesco@...ux.intel.com>
---
 drivers/acpi/apei/Kconfig | 1 +
 drivers/acpi/apei/ghes.c  | 4 ----
 2 files changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/acpi/apei/Kconfig b/drivers/acpi/apei/Kconfig
index 070c07d68dfb..c265b54d810d 100644
--- a/drivers/acpi/apei/Kconfig
+++ b/drivers/acpi/apei/Kconfig
@@ -23,6 +23,7 @@ config ACPI_APEI_GHES
 	select ACPI_HED
 	select IRQ_WORK
 	select GENERIC_ALLOCATOR
+	select ACPI_APEI_PCIEAER
 	select ARM_SDE_INTERFACE if ARM64
 	help
 	  Generic Hardware Error Source provides a way to report
diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
index 97ee19f2cae0..d6fe5f020e96 100644
--- a/drivers/acpi/apei/ghes.c
+++ b/drivers/acpi/apei/ghes.c
@@ -613,7 +613,6 @@ static bool ghes_handle_arm_hw_error(struct acpi_hest_generic_data *gdata,
  */
 static void ghes_handle_aer(struct acpi_hest_generic_data *gdata)
 {
-#ifdef CONFIG_ACPI_APEI_PCIEAER
 	struct cper_sec_pcie *pcie_err = acpi_hest_get_payload(gdata);
 
 	if (pcie_err->validation_bits & CPER_PCIE_VALID_DEVICE_ID &&
@@ -646,7 +645,6 @@ static void ghes_handle_aer(struct acpi_hest_generic_data *gdata)
 				  (struct aer_capability_regs *)
 				  aer_info);
 	}
-#endif
 }
 
 static BLOCKING_NOTIFIER_HEAD(vendor_record_notify_list);
@@ -711,7 +709,6 @@ struct work_struct *cxl_cper_prot_err_work;
 static void cxl_cper_post_prot_err(struct cxl_cper_sec_prot_err *prot_err,
 				   int severity)
 {
-#ifdef CONFIG_ACPI_APEI_PCIEAER
 	struct cxl_cper_prot_err_work_data wd;
 	u8 *dvsec_start, *cap_start;
 
@@ -767,7 +764,6 @@ static void cxl_cper_post_prot_err(struct cxl_cper_sec_prot_err *prot_err,
 	}
 
 	schedule_work(cxl_cper_prot_err_work);
-#endif
 }
 
 int cxl_cper_register_prot_err_work(struct work_struct *work)
-- 
2.51.0