forked from Minki/linux
f1f4550479
Since commit 1c6c69525b ("genirq: Reject bogus threaded irq requests") threaded
IRQs without a primary handler need to be requested with IRQF_ONESHOT, otherwise
the request will fail. This semantic patch will help to statically identify
(and fix) such cases.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Michal Marek <mmarek@suse.cz>
66 lines
1.1 KiB
Plaintext
66 lines
1.1 KiB
Plaintext
/// Make sure threaded IRQs without a primary handler are always request with
|
|
/// IRQF_ONESHOT
|
|
///
|
|
//
|
|
// Confidence: Good
|
|
// Comments:
|
|
// Options: --no-includes
|
|
|
|
virtual patch
|
|
virtual context
|
|
virtual org
|
|
virtual report
|
|
|
|
@r1@
|
|
expression irq;
|
|
expression thread_fn;
|
|
expression flags;
|
|
position p;
|
|
@@
|
|
request_threaded_irq@p(irq, NULL, thread_fn,
|
|
(
|
|
flags | IRQF_ONESHOT
|
|
|
|
|
IRQF_ONESHOT
|
|
)
|
|
, ...)
|
|
|
|
@depends on patch@
|
|
expression irq;
|
|
expression thread_fn;
|
|
expression flags;
|
|
position p != r1.p;
|
|
@@
|
|
request_threaded_irq@p(irq, NULL, thread_fn,
|
|
(
|
|
-0
|
|
+IRQF_ONESHOT
|
|
|
|
|
-flags
|
|
+flags | IRQF_ONESHOT
|
|
)
|
|
, ...)
|
|
|
|
@depends on context@
|
|
position p != r1.p;
|
|
@@
|
|
*request_threaded_irq@p(...)
|
|
|
|
@match depends on report || org@
|
|
expression irq;
|
|
position p != r1.p;
|
|
@@
|
|
request_threaded_irq@p(irq, NULL, ...)
|
|
|
|
@script:python depends on org@
|
|
p << match.p;
|
|
@@
|
|
msg = "ERROR: Threaded IRQ with no primary handler requested without IRQF_ONESHOT"
|
|
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"
|
|
coccilib.report.print_report(p[0],msg)
|