mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-26 14:00:54 +07:00
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
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/// IRQF_ONESHOT
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///
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//
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// Confidence: Good
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// Comments:
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// Options: --no-includes
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virtual patch
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virtual context
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virtual org
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virtual report
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@r1@
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expression irq;
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expression thread_fn;
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expression flags;
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position p;
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@@
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request_threaded_irq@p(irq, NULL, thread_fn,
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(
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flags | IRQF_ONESHOT
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IRQF_ONESHOT
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)
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, ...)
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@depends on patch@
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expression irq;
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expression thread_fn;
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expression flags;
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position p != r1.p;
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@@
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request_threaded_irq@p(irq, NULL, thread_fn,
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(
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-0
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+IRQF_ONESHOT
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-flags
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+flags | IRQF_ONESHOT
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)
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, ...)
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@depends on context@
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position p != r1.p;
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@@
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*request_threaded_irq@p(...)
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@match depends on report || org@
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expression irq;
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position p != r1.p;
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@@
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request_threaded_irq@p(irq, NULL, ...)
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@script:python depends on org@
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p << match.p;
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@@
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msg = "ERROR: Threaded IRQ with no primary handler requested without IRQF_ONESHOT"
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coccilib.org.print_todo(p[0],msg)
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@script:python depends on report@
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p << match.p;
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@@
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msg = "ERROR: Threaded IRQ with no primary handler requested without IRQF_ONESHOT"
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coccilib.report.print_report(p[0],msg)
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