linux-kernel - [v7 PATCH 4/6] ACPI / APEI: Add callback for ARM HW errors to the GHES notifier

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Date:   Tue, 7 Apr 2020 13:00:43 +0100
From:   Shiju Jose <shiju.jose@...wei.com>
To:     <linux-acpi@...r.kernel.org>, <linux-pci@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <rjw@...ysocki.net>,
        <bp@...en8.de>, <james.morse@....com>, <helgaas@...nel.org>,
        <lenb@...nel.org>, <tony.luck@...el.com>,
        <dan.carpenter@...cle.com>, <gregkh@...uxfoundation.org>,
        <zhangliguang@...ux.alibaba.com>, <tglx@...utronix.de>
CC:     <linuxarm@...wei.com>, <jonathan.cameron@...wei.com>,
        <tanxiaofei@...wei.com>, <yangyicong@...ilicon.com>,
        Shiju Jose <shiju.jose@...wei.com>
Subject: [v7 PATCH 4/6] ACPI / APEI: Add callback for ARM HW errors to the GHES notifier

Add callback function for handling the ARM HW errors to the GHES notifier.

Signed-off-by: Shiju Jose <shiju.jose@...wei.com>
---
 drivers/acpi/apei/ghes.c | 29 +++++++++++++++++++++++------
 1 file changed, 23 insertions(+), 6 deletions(-)

diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
index 67ef1742fc93..3b89c7621a0d 100644
--- a/drivers/acpi/apei/ghes.c
+++ b/drivers/acpi/apei/ghes.c
@@ -564,6 +564,20 @@ static int ghes_handle_aer(struct notifier_block *nb, unsigned long event,
 	return NOTIFY_STOP;
 }
 
+static int ghes_handle_arm_hw_error(struct notifier_block *nb,
+				    unsigned long event, void *data)
+{
+	struct acpi_hest_generic_data *gdata = data;
+	struct cper_sec_proc_arm *err = acpi_hest_get_payload(gdata);
+
+	if (!guid_equal((guid_t *)gdata->section_type, &CPER_SEC_PROC_ARM))
+		return NOTIFY_DONE;
+
+	log_arm_hw_error(err);
+
+	return NOTIFY_STOP;
+}
+
 static struct notifier_block ghes_notifier_mem_error = {
 	.notifier_call = ghes_handle_memory_failure,
 };
@@ -572,6 +586,10 @@ static struct notifier_block ghes_notifier_aer = {
 	.notifier_call = ghes_handle_aer,
 };
 
+static struct notifier_block ghes_notifier_arm_hw_error = {
+	.notifier_call = ghes_handle_arm_hw_error,
+};
+
 struct ghes_error_handler_list {
 	const char *name;
 	struct notifier_block *nb;
@@ -586,6 +604,10 @@ static const struct ghes_error_handler_list ghes_error_handler_list[] = {
 		.name = "ghes_notifier_aer",
 		.nb = &ghes_notifier_aer,
 	},
+	{
+		.name = "ghes_notifier_arm_hw_error",
+		.nb = &ghes_notifier_arm_hw_error,
+	},
 };
 
 static BLOCKING_NOTIFIER_HEAD(ghes_event_notify_list);
@@ -670,12 +692,7 @@ static void ghes_do_proc(struct ghes *ghes,
 			pr_warn(GHES_PFX "ghes event queue full\n");
 			break;
 		}
-
-		if (guid_equal(sec_type, &CPER_SEC_PROC_ARM)) {
-			struct cper_sec_proc_arm *err = acpi_hest_get_payload(gdata);
-
-			log_arm_hw_error(err);
-		} else {
+		{
 			void *err = acpi_hest_get_payload(gdata);
 
 			log_non_standard_event(sec_type, fru_id, fru_text,
-- 
2.17.1