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

Signed-off-by: Tuan Phan <redacted>
Signed-off-by: Loc Ho <redacted>
---
 drivers/acpi/apei/ghes.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
index 3dd9c46..76146c8 100644
--- a/drivers/acpi/apei/ghes.c
+++ b/drivers/acpi/apei/ghes.c

@@ -1011,7 +1011,8 @@ 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);