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