Subject: RE: [kbuild-all] Re: [PATCH] wfx: fix irqf_oneshot.cocci warnings

From: "Li, Philip" <[email-masked]>
Date: Tue, 16 Mar 2021 08:03:00 +0000

> Subject: [kbuild-all] Re: [PATCH] wfx: fix irqf_oneshot.cocci warnings
> 
> Hello,
> 
> On Monday 15 March 2021 22:09:20 CET kernel test robot wrote:
> >
> > From: kernel test robot <[email-masked]>
> >
> > drivers/net/wireless/silabs/wfx/bus_sdio.c:134:8-33: ERROR: Threaded IRQ with no primary handler requested without
> IRQF_ONESHOT
> >
> >  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.
> >
> > Generated by: scripts/coccinelle/misc/irqf_oneshot.cocci
> >
> > CC: Jérôme Pouiller <[email-masked]>
> > Reported-by: kernel test robot <[email-masked]>
> > Signed-off-by: kernel test robot <[email-masked]>
> > ---
> >
> > url:    https://github.com/0day-ci/linux/commits/Jerome-Pouiller/wfx-get-out-from-the-staging-area/20210315-212855
> > base:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git b828324bba8f575fde487a91fec07303789dda8a
> >
> >  bus_sdio.c |    3 ++-
> >  1 file changed, 2 insertions(+), 1 deletion(-)
> >
> > --- a/drivers/net/wireless/silabs/wfx/bus_sdio.c
> > +++ b/drivers/net/wireless/silabs/wfx/bus_sdio.c
> > @@ -132,7 +132,8 @@ static int wfx_sdio_irq_subscribe(void *
> >                 flags = IRQF_TRIGGER_HIGH;
> >         flags |= IRQF_ONESHOT;
> >         return devm_request_threaded_irq(&bus->func->dev, bus->of_irq, NULL,
> > -                                        wfx_sdio_irq_handler_ext, flags,
> > +                                        wfx_sdio_irq_handler_ext,
> > +                                        flags | IRQF_ONESHOT,
> >                                          "wfx", bus);
> >  }
> >
> >
> 
> Obviously, "flags" always contains IRQF_ONESHOT. So, it is a false positive.
Thanks for the feedback. Sorry about this false positive, this had been disabled
for auto report now.

> 
> 
> --
> Jérôme Pouiller
> 
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