netdev - Re: [PATCH] net: stmmac: fix warning from Sparse for socfpga

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Message-ID: <53FC363E.6050604@st.com>
Date:	Tue, 26 Aug 2014 09:24:46 +0200
From:	Giuseppe CAVALLARO <peppe.cavallaro@...com>
To:	Ley Foon Tan <lftan@...era.com>, <netdev@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>,
	"David S. Miller" <davem@...emloft.net>
Cc:	<lftan.linux@...il.com>, Vince Bridgers <vbridger@...era.com>
Subject: Re: [PATCH] net: stmmac: fix warning from Sparse for socfpga

On 8/26/2014 9:11 AM, Ley Foon Tan wrote:
> Warning:
> drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c:122:41:
> sparse: cast removes address space of expression
> drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c:122:38:
> sparse: incorrect type in assignment (different address spaces)
>
> Signed-off-by: Ley Foon Tan <lftan@...era.com>
> ---
>   drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c | 3 ++-
>   1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
> index cd613d7..c1addce 100644
> --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
> +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
> @@ -119,7 +119,8 @@ static int socfpga_dwmac_parse_data(struct socfpga_dwmac *dwmac, struct device *
>   			return -EINVAL;
>   		}
>
> -		dwmac->splitter_base = (void *)devm_ioremap_resource(dev,
> +		dwmac->splitter_base =
> +			(void __iomem *)devm_ioremap_resource(dev,

I think, no casting should be done:

    dwmac->splitter_base = devm_ioremap_resource(dev, ....


patch should be for net-next

peppe

>   			&res_splitter);
>   		if (!dwmac->splitter_base) {
>   			dev_info(dev, "Failed to mapping emac splitter\n");
>

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