linux-kernel - [PATCH 1/1] acpi: apei: Enable APEI multiple GHES source to share an single external IRQ

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Date:   Wed, 19 Jul 2017 13:24:27 -0400
From:   Mark Salter <msalter@...hat.com>
To:     "Rafael J . Wysocki" <rjw@...ysocki.net>
Cc:     Tyler Baicar <tbaicar@...eaurora.org>, linux-acpi@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 1/1] acpi: apei: Enable APEI multiple GHES source to share an single external IRQ

From: Loc Ho <lho@....com>

This patch allows APEI generic error source table with external
IRQ to share an single IRQ.

Signed-off-by: Tuan Phan <tphan@....com>
Signed-off-by: Loc Ho <lho@....com>
Signed-off-by: Mark Salter <msalter@...hat.com>
---
 drivers/acpi/apei/ghes.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
index d661d452b238..eed09fc664e8 100644
--- a/drivers/acpi/apei/ghes.c
+++ b/drivers/acpi/apei/ghes.c
@@ -1157,7 +1157,8 @@ static int ghes_probe(struct platform_device *ghes_dev)
 			       generic->header.source_id);
 			goto err_edac_unreg;
 		}
-		rc = request_irq(ghes->irq, ghes_irq_func, 0, "GHES IRQ", ghes);
+		rc = request_irq(ghes->irq, ghes_irq_func, IRQF_SHARED,
+				 "GHES IRQ", ghes);
 		if (rc) {
 			pr_err(GHES_PFX "Failed to register IRQ for generic hardware error source: %d\n",
 			       generic->header.source_id);
-- 
2.13.3