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| author |   Valentin Rothberg <valentinrothberg@gmail.com> | 2015-03-04 09:32:32 +0100 |
|---|---|---|
| committer |   Michal Marek <mmarek@suse.cz> | 2015-03-25 11:58:10 +0100 |
| commit | 2c2b913d19e149bf7c4ae5f62634fc3b46a06306 (patch) | |
| tree | ad87dd239b67c04f8b78533062166c215d52d2be /scripts/coccinelle | |
| parent | Linux 4.0-rc1 (diff) | |
| download | wireguard-linux-2c2b913d19e149bf7c4ae5f62634fc3b46a06306.tar.xz wireguard-linux-2c2b913d19e149bf7c4ae5f62634fc3b46a06306.zip | |
irqf_oneshot.cocci: add check of devm_request_threaded_irq()
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 <valentinrothberg@gmail.com>
Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Michal Marek <mmarek@suse.cz>
Diffstat (limited to 'scripts/coccinelle')
| -rw-r--r-- | scripts/coccinelle/misc/irqf_oneshot.cocci | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/scripts/coccinelle/misc/irqf_oneshot.cocci b/scripts/coccinelle/misc/irqf_oneshot.cocci index 6cfde94be0ef..a24a754ae1d7 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; |