irqf_oneshot.cocci: add check of devm_request_threaded_irq()
Author: Valentin Rothberg <valentinrothberg@gmail.com>
Since commit 1c6c69525b40eb76de8adf039409722015927dc3 ("genirq: Reject
bogus threaded irq requests") threaded IRQs without a primary handler
need to be requested with IRQF_ONESHOT, otherwise the request will fail.
Until now, this coccinelle script only checked request_threaded_irq().
However, the counterpart devm function (see kernel/irq/devres.c) is also
affected by the missing flag which can be detected with this patch.
Signed-off-by: Valentin Rothberg
Signed-off-by: Peter Senna Tschudin
Acked-by: Julia Lawall
Signed-off-by: Michal Marek
---
scripts/coccinelle/misc/irqf_oneshot.cocci | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/scripts/coccinelle/misc/irqf_oneshot.cocci b/scripts/coccinelle/misc/irqf_oneshot.cocci
index 6cfde94..a24a754 100644
--- a/scripts/coccinelle/misc/irqf_oneshot.cocci
+++ b/scripts/coccinelle/misc/irqf_oneshot.cocci
@@ -12,11 +12,13 @@ virtual org
virtual report
@r1@
+expression dev;
expression irq;
expression thread_fn;
expression flags;
position p;
@@
+(
request_threaded_irq@p(irq, NULL, thread_fn,
(
flags | IRQF_ONESHOT
@@ -24,13 +26,24 @@ flags | IRQF_ONESHOT
IRQF_ONESHOT
)
, ...)
+|
+devm_request_threaded_irq@p(dev, irq, NULL, thread_fn,
+(
+flags | IRQF_ONESHOT
+|
+IRQF_ONESHOT
+)
+, ...)
+)
@depends on patch@
+expression dev;
expression irq;
expression thread_fn;
expression flags;
position p != r1.p;
@@
+(
request_threaded_irq@p(irq, NULL, thread_fn,
(
-0
@@ -40,6 +53,17 @@ request_threaded_irq@p(irq, NULL, thread_fn,
+flags | IRQF_ONESHOT
)
, ...)
+|
+devm_request_threaded_irq@p(dev, irq, NULL, thread_fn,
+(
+-0
++IRQF_ONESHOT
+|
+-flags
++flags | IRQF_ONESHOT
+)
+, ...)
+)
@depends on context@
position p != r1.p; |
---
scripts/coccinelle/misc/irqf_oneshot.cocci | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/scripts/coccinelle/misc/irqf_oneshot.cocci b/scripts/coccinelle/misc/irqf_oneshot.cocci
index 6cfde94..a24a754 100644
--- a/scripts/coccinelle/misc/irqf_oneshot.cocci
+++ b/scripts/coccinelle/misc/irqf_oneshot.cocci
@@ -12,11 +12,13 @@ virtual org
virtual report
@r1@
+expression dev;
expression irq;
expression thread_fn;
expression flags;
position p;
@@
+(
request_threaded_irq@p(irq, NULL, thread_fn,
(
flags | IRQF_ONESHOT
@@ -24,13 +26,24 @@ flags | IRQF_ONESHOT
IRQF_ONESHOT
)
, ...)
+|
+devm_request_threaded_irq@p(dev, irq, NULL, thread_fn,
+(
+flags | IRQF_ONESHOT
+|
+IRQF_ONESHOT
+)
+, ...)
+)
@depends on patch@
+expression dev;
expression irq;
expression thread_fn;
expression flags;
position p != r1.p;
@@
+(
request_threaded_irq@p(irq, NULL, thread_fn,
(
-0
@@ -40,6 +53,17 @@ request_threaded_irq@p(irq, NULL, thread_fn,
+flags | IRQF_ONESHOT
)
, ...)
+|
+devm_request_threaded_irq@p(dev, irq, NULL, thread_fn,
+(
+-0
++IRQF_ONESHOT
+|
+-flags
++flags | IRQF_ONESHOT
+)
+, ...)
+)
@depends on context@
position p != r1.p;
