linux-kernel - Re: [PATCH] remoteproc: imx_dsp_rproc: Fix kernel test robot sparse warning

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Date:   Tue, 11 Apr 2023 11:22:53 -0600
From:   Mathieu Poirier <mathieu.poirier@...aro.org>
To:     Iuliana Prodan <iuliana.prodan@....com>
Cc:     andersson@...nel.org, linux-remoteproc@...r.kernel.org,
        shawnguo@...nel.org, s.hauer@...gutronix.de, kernel@...gutronix.de,
        festevam@...il.com, linux-imx@....com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] remoteproc: imx_dsp_rproc: Fix kernel test robot sparse
 warning

On Tue, Apr 11, 2023 at 02:28:34AM +0300, Iuliana Prodan wrote:
> On 4/7/2023 7:14 PM, Mathieu Poirier wrote:
> > This patch fixes the kernel test robot warning reported here:
> > 
> > https://lore.kernel.org/bpf/642f916b.pPIKZ%2Fl%2F%2Fbw8tvIH%25lkp@intel.com/T/
> > 
> > Fixes: 408ec1ff0caa ("remoteproc: imx_dsp_rproc: Add custom memory copy implementation for i.MX DSP Cores")
> > Signed-off-by: Mathieu Poirier <mathieu.poirier@...aro.org>
> 
> Tested-by: Iuliana Prodan <iuliana.prodan@....com>
> Reviewed-by: Iuliana Prodan <iuliana.prodan@....com>
>

Applied

> Thanks,
> Iulia
> 
> 
> > ---
> > 
> > Iuliana - please thest this on your side
> > 
> > ---
> >   drivers/remoteproc/imx_dsp_rproc.c | 8 ++++----
> >   1 file changed, 4 insertions(+), 4 deletions(-)
> > 
> > diff --git a/drivers/remoteproc/imx_dsp_rproc.c b/drivers/remoteproc/imx_dsp_rproc.c
> > index 21759d9e5b7b..c805cb83cacc 100644
> > --- a/drivers/remoteproc/imx_dsp_rproc.c
> > +++ b/drivers/remoteproc/imx_dsp_rproc.c
> > @@ -750,12 +750,12 @@ static void imx_dsp_rproc_kick(struct rproc *rproc, int vqid)
> >    * The IRAM is part of the HiFi DSP.
> >    * According to hw specs only 32-bits writes are allowed.
> >    */
> > -static int imx_dsp_rproc_memcpy(void *dest, const void *src, size_t size)
> > +static int imx_dsp_rproc_memcpy(void *dst, const void *src, size_t size)
> >   {
> > +	void __iomem *dest = (void __iomem *)dst;
> >   	const u8 *src_byte = src;
> >   	const u32 *source = src;
> >   	u32 affected_mask;
> > -	u32 *dst = dest;
> >   	int i, q, r;
> >   	u32 tmp;
> > @@ -768,7 +768,7 @@ static int imx_dsp_rproc_memcpy(void *dest, const void *src, size_t size)
> >   	/* copy data in units of 32 bits at a time */
> >   	for (i = 0; i < q; i++)
> > -		writel(source[i], &dst[i]);
> > +		writel(source[i], dest + i * 4);
> >   	if (r) {
> >   		affected_mask = GENMASK(8 * r, 0);
> > @@ -799,8 +799,8 @@ static int imx_dsp_rproc_memcpy(void *dest, const void *src, size_t size)
> >    */
> >   static int imx_dsp_rproc_memset(void *addr, u8 value, size_t size)
> >   {
> > +	void __iomem *tmp_dst = (void __iomem *)addr;
> >   	u32 tmp_val = value;
> > -	u32 *tmp_dst = addr;
> >   	u32 affected_mask;
> >   	int q, r;
> >   	u32 tmp;