From: Thor Thayer <ttha...@opensource.altera.com> Add the IRQF_ONESHOT and IRQF_TRIGGER_HIGH flags to disable the IRQ while executing the IRQ handler. Remove the IRQF_SHARED because these are not shared IRQs in the domain. Exposed when flooding IRQs.
Signed-off-by: Thor Thayer <ttha...@opensource.altera.com> --- drivers/edac/altera_edac.c | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) diff --git a/drivers/edac/altera_edac.c b/drivers/edac/altera_edac.c index afe6305..58d3e2b 100644 --- a/drivers/edac/altera_edac.c +++ b/drivers/edac/altera_edac.c @@ -1445,7 +1445,8 @@ static int altr_portb_setup(struct altr_edac_device_dev *device) } rc = devm_request_irq(&altdev->ddev, altdev->sb_irq, prv->ecc_irq_handler, - IRQF_SHARED, ecc_name, altdev); + IRQF_ONESHOT | IRQF_TRIGGER_HIGH, + ecc_name, altdev); if (rc) { edac_printk(KERN_ERR, EDAC_DEVICE, "PortB SBERR IRQ error\n"); goto err_release_group_1; @@ -1459,7 +1460,8 @@ static int altr_portb_setup(struct altr_edac_device_dev *device) } rc = devm_request_irq(&altdev->ddev, altdev->db_irq, prv->ecc_irq_handler, - IRQF_SHARED, ecc_name, altdev); + IRQF_ONESHOT | IRQF_TRIGGER_HIGH, + ecc_name, altdev); if (rc) { edac_printk(KERN_ERR, EDAC_DEVICE, "PortB DBERR IRQ error\n"); goto err_release_group_1; @@ -1745,9 +1747,9 @@ static int altr_edac_a10_device_add(struct altr_arria10_edac *edac, rc = -ENODEV; goto err_release_group1; } - rc = devm_request_irq(edac->dev, altdev->sb_irq, - prv->ecc_irq_handler, - IRQF_SHARED, ecc_name, altdev); + rc = devm_request_irq(edac->dev, altdev->sb_irq, prv->ecc_irq_handler, + IRQF_ONESHOT | IRQF_TRIGGER_HIGH, + ecc_name, altdev); if (rc) { edac_printk(KERN_ERR, EDAC_DEVICE, "No SBERR IRQ resource\n"); goto err_release_group1; @@ -1759,9 +1761,9 @@ static int altr_edac_a10_device_add(struct altr_arria10_edac *edac, rc = -ENODEV; goto err_release_group1; } - rc = devm_request_irq(edac->dev, altdev->db_irq, - prv->ecc_irq_handler, - IRQF_SHARED, ecc_name, altdev); + rc = devm_request_irq(edac->dev, altdev->db_irq, prv->ecc_irq_handler, + IRQF_ONESHOT | IRQF_TRIGGER_HIGH, + ecc_name, altdev); if (rc) { edac_printk(KERN_ERR, EDAC_DEVICE, "No DBERR IRQ resource\n"); goto err_release_group1; -- 1.7.9.5