The IRQF_DISABLED flag is a NOOP and scheduled to be removed.  According
to commit e58aa3d2d0cc ("genirq: Run irq handlers with interrupts
disabled") running IRQ handlers with interrupts enabled can cause stack
overflows when the interrupt line of the issuing device is still active.

Signed-off-by: Valentin Rothberg <[email protected]>
---
 drivers/bus/omap_l3_noc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/bus/omap_l3_noc.c b/drivers/bus/omap_l3_noc.c
index 029bc73..11f7982 100644
--- a/drivers/bus/omap_l3_noc.c
+++ b/drivers/bus/omap_l3_noc.c
@@ -284,7 +284,7 @@ static int omap_l3_probe(struct platform_device *pdev)
         */
        l3->debug_irq = platform_get_irq(pdev, 0);
        ret = devm_request_irq(l3->dev, l3->debug_irq, l3_interrupt_handler,
-                              IRQF_DISABLED, "l3-dbg-irq", l3);
+                              0x0, "l3-dbg-irq", l3);
        if (ret) {
                dev_err(l3->dev, "request_irq failed for %d\n",
                        l3->debug_irq);
@@ -293,7 +293,7 @@ static int omap_l3_probe(struct platform_device *pdev)
 
        l3->app_irq = platform_get_irq(pdev, 1);
        ret = devm_request_irq(l3->dev, l3->app_irq, l3_interrupt_handler,
-                              IRQF_DISABLED, "l3-app-irq", l3);
+                              0x0, "l3-app-irq", l3);
        if (ret)
                dev_err(l3->dev, "request_irq failed for %d\n", l3->app_irq);
 
-- 
1.9.1

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to