linux-kernel - Re: [PATCH] dma: fix returnvar.cocci warnings

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Message-ID: <alpine.DEB.2.10.1511082118220.2583@hadrien>
Date:	Sun, 8 Nov 2015 21:19:04 +0000 (GMT)
From:	Julia Lawall <julia.lawall@...6.fr>
To:	Andy Shevchenko <andy.shevchenko@...il.com>
cc:	Julia Lawall <julia.lawall@...6.fr>,
	Sinan Kaya <okaya@...eaurora.org>,
	Andy Gross <agross@...eaurora.org>, kbuild-all@...org,
	dmaengine <dmaengine@...r.kernel.org>, timur@...eaurora.org,
	cov@...eaurora.org, jcm@...hat.com, linux-arm-msm@...r.kernel.org,
	linux-arm Mailing List <linux-arm-kernel@...ts.infradead.org>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Vinod Koul <vinod.koul@...el.com>,
	Dan Williams <dan.j.williams@...el.com>,
	devicetree <devicetree@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] dma: fix returnvar.cocci warnings



On Sun, 8 Nov 2015, Andy Shevchenko wrote:

> On Sun, Nov 8, 2015 at 9:45 AM, Julia Lawall <julia.lawall@...6.fr> wrote:
> >  Remove unneeded variable used to store return value.
> >
> > Generated by: scripts/coccinelle/misc/returnvar.cocci
> >
> > CC: Sinan Kaya <okaya@...eaurora.org>
> > Signed-off-by: Fengguang Wu <fengguang.wu@...el.com>
>
> Who is the author?
> I suppose Fengguang is the reporter, right?

There is no human author...  But normally when I check these I add a
signed off by line to them.

julia

>
> > ---
> >
> >  hidma_ll.c |    6 ++----
> >  1 file changed, 2 insertions(+), 4 deletions(-)
> >
> > --- a/drivers/dma/qcom/hidma_ll.c
> > +++ b/drivers/dma/qcom/hidma_ll.c
> > @@ -567,14 +567,13 @@ int hidma_ll_resume(struct hidma_lldev *
> >
> >  static int hidma_ll_hw_start(struct hidma_lldev *lldev)
> >  {
> > -       int rc = 0;
> >         unsigned long irqflags;
> >
> >         spin_lock_irqsave(&lldev->lock, irqflags);
> >         writel(lldev->tre_write_offset, lldev->trca + TRCA_DOORBELL_OFFSET);
> >         spin_unlock_irqrestore(&lldev->lock, irqflags);
> >
> > -       return rc;
> > +       return 0;
> >  }
> >
> >  bool hidma_ll_isenabled(struct hidma_lldev *lldev)
> > @@ -600,7 +599,6 @@ bool hidma_ll_isenabled(struct hidma_lld
> >  int hidma_ll_queue_request(struct hidma_lldev *lldev, u32 tre_ch)
> >  {
> >         struct hidma_tre *tre;
> > -       int rc = 0;
> >         unsigned long flags;
> >
> >         tre = &lldev->trepool[tre_ch];
> > @@ -618,7 +616,7 @@ int hidma_ll_queue_request(struct hidma_
> >         lldev->tre_write_offset = (lldev->tre_write_offset + TRE_SIZE)
> >                                 % lldev->tre_ring_size;
> >         spin_unlock_irqrestore(&lldev->lock, flags);
> > -       return rc;
> > +       return 0;
> >  }
> >
> >  int hidma_ll_start(struct hidma_lldev *lldev)
> > --
> > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
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> > Please read the FAQ at  http://www.tux.org/lkml/
>
>
>
> --
> With Best Regards,
> Andy Shevchenko
>
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