diff options
Diffstat (limited to 'scripts/coccinelle/misc/irqf_oneshot.cocci')
| -rw-r--r-- | scripts/coccinelle/misc/irqf_oneshot.cocci | 82 |
1 files changed, 65 insertions, 17 deletions
diff --git a/scripts/coccinelle/misc/irqf_oneshot.cocci b/scripts/coccinelle/misc/irqf_oneshot.cocci index 6cfde94be0ef..9b6f404d07f2 100644 --- a/scripts/coccinelle/misc/irqf_oneshot.cocci +++ b/scripts/coccinelle/misc/irqf_oneshot.cocci @@ -1,8 +1,12 @@ -/// Make sure threaded IRQs without a primary handler are always request with -/// IRQF_ONESHOT +// 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: Good +// Confidence: Moderate // Comments: // Options: --no-includes @@ -12,25 +16,48 @@ virtual org virtual report @r1@ -expression irq; -expression thread_fn; -expression flags; +expression dev, irq, thread_fn; position p; @@ +( request_threaded_irq@p(irq, NULL, thread_fn, ( -flags | IRQF_ONESHOT +IRQF_ONESHOT | ... +| +IRQF_ONESHOT +) +, ...) +| +devm_request_threaded_irq@p(dev, irq, NULL, thread_fn, +( +IRQF_ONESHOT | ... | IRQF_ONESHOT ) , ...) +) -@depends on patch@ -expression irq; -expression thread_fn; -expression flags; +@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 @@ -40,26 +67,47 @@ 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; +expression dev, irq; +position p != {r1.p,r2.p}; @@ -*request_threaded_irq@p(...) +( +*request_threaded_irq@p(irq, NULL, ...) +| +*devm_request_threaded_irq@p(dev, irq, NULL, ...) +) + @match depends on report || org@ -expression irq; -position p != r1.p; +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 = "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) |