[PATCH] coccinelle: irqf_oneshot: reduce the severity due to false positives

From: Krzysztof Kozlowski
Date: Fri Apr 23 2021 - 06:00:46 EST


The IRQF_ONESHOT should be present for threaded IRQ using default
primary handler. However intetrupt of many child devices, e.g. children
of MFD, is nested thus the IRQF_ONESHOT is not needed. The coccinelle
message about error misleads submitters and reviewers about the severity
of the issue, so make it a warning and mention possible false positive.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxx>
---
scripts/coccinelle/misc/irqf_oneshot.cocci | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/scripts/coccinelle/misc/irqf_oneshot.cocci b/scripts/coccinelle/misc/irqf_oneshot.cocci
index 7b48287b3dc1..9b6f404d07f2 100644
--- a/scripts/coccinelle/misc/irqf_oneshot.cocci
+++ b/scripts/coccinelle/misc/irqf_oneshot.cocci
@@ -103,11 +103,11 @@ devm_request_threaded_irq@p(dev, irq, NULL, ...)
@script:python depends on org@
p << match.p;
@@
-msg = "ERROR: Threaded IRQ with no primary handler requested without IRQF_ONESHOT"
+msg = "WARNING: Threaded IRQ with no primary handler requested without IRQF_ONESHOT (unless it is nested IRQ)"
coccilib.org.print_todo(p[0],msg)

@script:python depends on report@
p << match.p;
@@
-msg = "ERROR: Threaded IRQ with no primary handler requested without IRQF_ONESHOT"
+msg = "WARNING: Threaded IRQ with no primary handler requested without IRQF_ONESHOT (unless it is nested IRQ)"
coccilib.report.print_report(p[0],msg)
--
2.25.1