Re: [PATCH linux-next] drivers: dma: Fix sparse warning for mux_configure32

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On 12-08-19, 15:42, Mao Wenan wrote:

Patch title is incorrect, it should mention the changes in patch, for
example make mux_configure32 static

Do read up on Documentation/process/submitting-patches.rst again!

> There is one sparse warning in drivers/dma/fsl-edma-common.c,

It will help to explain the warning before the fix

> fix it by setting mux_configure32() as static.
> 
> make allmodconfig ARCH=mips CROSS_COMPILE=mips-linux-gnu-
> make C=2 drivers/dma/fsl-edma-common.o ARCH=mips CROSS_COMPILE=mips-linux-gnu-

Make cmds are not relevant for the log

> drivers/dma/fsl-edma-common.c:93:6: warning: symbol 'mux_configure32' was not declared. Should it be static?

This one is and should be retained

> 
> Fixes: 232a7f18cf8ec ("dmaengine: fsl-edma: add i.mx7ulp edma2 version support")
> Signed-off-by: Mao Wenan <maowenan@xxxxxxxxxx>
> ---
>  drivers/dma/fsl-edma-common.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/dma/fsl-edma-common.c b/drivers/dma/fsl-edma-common.c
> index 6d6d8a4..7dbf7df 100644
> --- a/drivers/dma/fsl-edma-common.c
> +++ b/drivers/dma/fsl-edma-common.c
> @@ -90,8 +90,8 @@ static void mux_configure8(struct fsl_edma_chan *fsl_chan, void __iomem *addr,
>  	iowrite8(val8, addr + off);
>  }
>  
> -void mux_configure32(struct fsl_edma_chan *fsl_chan, void __iomem *addr,
> -		     u32 off, u32 slot, bool enable)
> +static void mux_configure32(struct fsl_edma_chan *fsl_chan, void __iomem *addr,

just change this to static

> +			    u32 off, u32 slot, bool enable)

and dont change anything else.

If you feel to change this, propose a new patch for this line explaining
why this should be changed

>  {
>  	u32 val;
>  
> -- 
> 2.7.4

-- 
~Vinod



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