linux-kernel - Re: [PATCH] dmaengine: sf-pdma: fix kernel-doc W=1 warning

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Date:   Mon, 18 Nov 2019 16:16:33 +0800
From:   Green Wan <green.wan@...ive.com>
To:     Vinod Koul <vkoul@...nel.org>
Cc:     Dan Williams <dan.j.williams@...el.com>, dmaengine@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] dmaengine: sf-pdma: fix kernel-doc W=1 warning

will fix the subject and split the patch. Thanks.

--
Green

On Mon, Nov 18, 2019 at 3:58 PM Vinod Koul <vkoul@...nel.org> wrote:
>
> On 15-11-19, 11:10, Green Wan wrote:
> > Fix kernel-doc W=1 warning. There are several comments starting from "/**"
> > but not for function comment purpose. Remove them to fix the warning.
> > Another definition in front of function causes warning. Move definition
> > to header file.
>
> We do not do these kind of titles for a patch, a patch should have
> subject which describes the changes and we do not mix multiple changes
> into a patch , so..
> >
> > kernel-doc warning:
> >
> > drivers/dma/sf-pdma/sf-pdma.c:28: warning: Function parameter or member
> >       'addr' not described in 'readq'
>
> 'describe redq parameter' can be good subject and a patch
>
> > drivers/dma/sf-pdma/sf-pdma.c:438: warning: Function parameter or member
> >       'ch' not described in 'SF_PDMA_REG_BASE'
> > drivers/dma/sf-pdma/sf-pdma.c:438: warning: Excess function parameter
> >       'pdma' description in 'SF_PDMA_REG_BASE'
>
> 'remove pdma description' can be second patch and subject
>
> >
> > Changes:
> >  - Replace string '/**' with '/*' not for comment purpose
> >  - Move definition, "SF_PDMA_REG_BASE", fomr sf-pdma.c to sf-pdma.h
> >
> > Signed-off-by: Green Wan <green.wan@...ive.com>
> > ---
> >  drivers/dma/sf-pdma/sf-pdma.c | 3 +--
> >  drivers/dma/sf-pdma/sf-pdma.h | 4 +++-
> >  2 files changed, 4 insertions(+), 3 deletions(-)
> >
> > diff --git a/drivers/dma/sf-pdma/sf-pdma.c b/drivers/dma/sf-pdma/sf-pdma.c
> > index 16fe00553496..465256fe8b1f 100644
> > --- a/drivers/dma/sf-pdma/sf-pdma.c
> > +++ b/drivers/dma/sf-pdma/sf-pdma.c
> > @@ -1,5 +1,5 @@
> >  // SPDX-License-Identifier: GPL-2.0-or-later
> > -/**
> > +/*
> >   * SiFive FU540 Platform DMA driver
> >   * Copyright (C) 2019 SiFive
> >   *
> > @@ -435,7 +435,6 @@ static int sf_pdma_irq_init(struct platform_device *pdev, struct sf_pdma *pdma)
> >   *
> >   * Return: none
> >   */
> > -#define SF_PDMA_REG_BASE(ch) (pdma->membase + (PDMA_CHAN_OFFSET * (ch)))
> >  static void sf_pdma_setup_chans(struct sf_pdma *pdma)
> >  {
> >       int i;
> > diff --git a/drivers/dma/sf-pdma/sf-pdma.h b/drivers/dma/sf-pdma/sf-pdma.h
> > index 55816c9e0249..0c20167b097d 100644
> > --- a/drivers/dma/sf-pdma/sf-pdma.h
> > +++ b/drivers/dma/sf-pdma/sf-pdma.h
> > @@ -1,5 +1,5 @@
> >  /* SPDX-License-Identifier: GPL-2.0-or-later */
> > -/**
> > +/*
> >   * SiFive FU540 Platform DMA driver
> >   * Copyright (C) 2019 SiFive
> >   *
> > @@ -57,6 +57,8 @@
> >  /* Error Recovery */
> >  #define MAX_RETRY                                    1
> >
> > +#define SF_PDMA_REG_BASE(ch) (pdma->membase + (PDMA_CHAN_OFFSET * (ch)))
> > +
> >  struct pdma_regs {
> >       /* read-write regs */
> >       void __iomem *ctrl;             /* 4 bytes */
> >
> > base-commit: a7e335deed174a37fc6f84f69caaeff8a08f8ff8
> > --
> > 2.17.1
>
> --
> ~Vinod