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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
| commit | ace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch) | |
| tree | b2d64bc10158fdd5497876388cd68142ca374ed3 /scripts/coccinelle/misc/irqf_oneshot.cocci | |
| parent | Initial commit. (diff) | |
| download | linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip | |
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'scripts/coccinelle/misc/irqf_oneshot.cocci')
| -rw-r--r-- | scripts/coccinelle/misc/irqf_oneshot.cocci | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/scripts/coccinelle/misc/irqf_oneshot.cocci b/scripts/coccinelle/misc/irqf_oneshot.cocci new file mode 100644 index 0000000000..9b6f404d07 --- /dev/null +++ b/scripts/coccinelle/misc/irqf_oneshot.cocci @@ -0,0 +1,113 @@ +// SPDX-License-Identifier: GPL-2.0 +/// Since commit 1c6c69525b40 ("genirq: Reject bogus threaded irq requests") +/// threaded IRQs without a primary handler need to be requested with +/// IRQF_ONESHOT, otherwise the request will fail. +/// +/// So pass the IRQF_ONESHOT flag in this case. +/// +// +// Confidence: Moderate +// Comments: +// Options: --no-includes + +virtual patch +virtual context +virtual org +virtual report + +@r1@ +expression dev, irq, thread_fn; +position p; +@@ +( +request_threaded_irq@p(irq, NULL, thread_fn, +( +IRQF_ONESHOT | ... +| +IRQF_ONESHOT +) +, ...) +| +devm_request_threaded_irq@p(dev, irq, NULL, thread_fn, +( +IRQF_ONESHOT | ... +| +IRQF_ONESHOT +) +, ...) +) + +@r2@ +expression dev, irq, thread_fn, flags, e; +position p != r1.p; +@@ +( +flags = IRQF_ONESHOT | ... +| +flags |= IRQF_ONESHOT | ... +) +... when != flags = e +( +request_threaded_irq@p(irq, NULL, thread_fn, flags, ...); +| +devm_request_threaded_irq@p(dev, irq, NULL, thread_fn, flags, ...); +) + +@depends on patch@ +expression dev, irq, thread_fn, flags; +position p != {r1.p,r2.p}; +@@ +( +request_threaded_irq@p(irq, NULL, thread_fn, +( +-0 ++IRQF_ONESHOT +| +-flags ++flags | IRQF_ONESHOT +) +, ...) +| +devm_request_threaded_irq@p(dev, irq, NULL, thread_fn, +( +-0 ++IRQF_ONESHOT +| +-flags ++flags | IRQF_ONESHOT +) +, ...) +) + +@depends on context@ +expression dev, irq; +position p != {r1.p,r2.p}; +@@ +( +*request_threaded_irq@p(irq, NULL, ...) +| +*devm_request_threaded_irq@p(dev, irq, NULL, ...) +) + + +@match depends on report || org@ +expression dev, irq; +position p != {r1.p,r2.p}; +@@ +( +request_threaded_irq@p(irq, NULL, ...) +| +devm_request_threaded_irq@p(dev, irq, NULL, ...) +) + +@script:python depends on org@ +p << match.p; +@@ +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 = "WARNING: Threaded IRQ with no primary handler requested without IRQF_ONESHOT (unless it is nested IRQ)" +coccilib.report.print_report(p[0],msg) |