diff options
| author | Eric Chanudet <echanude@redhat.com> | 2022-10-03 20:08:49 +0300 |
|---|---|---|
| committer | Jassi Brar <jaswinder.singh@linaro.org> | 2022-10-06 05:51:58 +0300 |
| commit | b8ae88e1e75e5cb7a6df5298ab75334362ed631c (patch) | |
| tree | e50c1201e4a83a3d7e332ced1ba6ca7c2ee54c72 /drivers/mailbox/qcom-ipcc.c | |
| parent | 8ac1111055afc863c78e389b051d843babbf2ca9 (diff) | |
| download | linux-b8ae88e1e75e5cb7a6df5298ab75334362ed631c.tar.xz | |
mailbox: qcom-ipcc: flag IRQ NO_THREAD
PREEMPT_RT forces qcom-ipcc's handler to be threaded with interrupts
enabled, which triggers a warning in __handle_irq_event_percpu():
irq 173 handler irq_default_primary_handler+0x0/0x10 enabled interrupts
WARNING: CPU: 0 PID: 77 at kernel/irq/handle.c:161 __handle_irq_event_percpu+0x4c4/0x4d0
Mark it IRQF_NO_THREAD to avoid running the handler in a threaded
context with threadirqs or PREEMPT_RT enabled.
Signed-off-by: Eric Chanudet <echanude@redhat.com>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Diffstat (limited to 'drivers/mailbox/qcom-ipcc.c')
| -rw-r--r-- | drivers/mailbox/qcom-ipcc.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/mailbox/qcom-ipcc.c b/drivers/mailbox/qcom-ipcc.c index 31d58b7d55fe..7e27acf6c0cc 100644 --- a/drivers/mailbox/qcom-ipcc.c +++ b/drivers/mailbox/qcom-ipcc.c @@ -308,7 +308,8 @@ static int qcom_ipcc_probe(struct platform_device *pdev) goto err_mbox; ret = devm_request_irq(&pdev->dev, ipcc->irq, qcom_ipcc_irq_fn, - IRQF_TRIGGER_HIGH | IRQF_NO_SUSPEND, name, ipcc); + IRQF_TRIGGER_HIGH | IRQF_NO_SUSPEND | + IRQF_NO_THREAD, name, ipcc); if (ret < 0) { dev_err(&pdev->dev, "Failed to register the irq: %d\n", ret); goto err_req_irq; |