linux-kernel - Re: [PATCH v2 17/17] scsi: ufs-qcom: fix compilation warnings

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Date:	Mon, 26 Oct 2015 14:56:46 -0700
From:	Stephen Boyd <sboyd@...eaurora.org>
To:	Yaniv Gardi <ygardi@...eaurora.org>, robherring2@...il.com,
	James.Bottomley@...senPartnership.com, pebolle@...cali.nl,
	hch@...radead.org
Cc:	linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org,
	linux-arm-msm@...r.kernel.org, santoshsy@...il.com,
	linux-scsi-owner@...r.kernel.org, subhashj@...eaurora.org,
	gbroner@...eaurora.org, draviv@...eaurora.org,
	Vinayak Holikatti <vinholikatti@...il.com>,
	"James E.J. Bottomley" <JBottomley@...n.com>
Subject: Re: [PATCH v2 17/17] scsi: ufs-qcom: fix compilation warnings

On 10/26/2015 08:41 AM, Yaniv Gardi wrote:
> Tnis patch fixes the following compilation warnings:
> ...ufs-qcom.c:1201:40:
> 	warning: incorrect type in argument 1 (different address spaces)
> ...ufs-qcom.c:1201:40:
> 	expected void const *ptr
> ...ufs-qcom.c:1201:40:
> 	got void [noderef] <asn:2>*dev_ref_clk_ctrl_mmio
> ...ufs-qcom.c:1207:53:
> 	warning: incorrect type in argument 1 (different address spaces)
> ...ufs-qcom.c:1207:53:
> 	expected void const *ptr
> ...ufs-qcom.c:1207:53:
> 	got void [noderef] <asn:2>*dev_ref_clk_ctrl_mmio
>
> Signed-off-by: Yaniv Gardi <ygardi@...eaurora.org>
>
> ---

What version of sparse do you use? You shouldn't need to do this.

>  drivers/scsi/ufs/ufs-qcom.c | 9 +++++----
>  1 file changed, 5 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c
> index 72b0ef7..b57f88a 100644
> --- a/drivers/scsi/ufs/ufs-qcom.c
> +++ b/drivers/scsi/ufs/ufs-qcom.c
> @@ -1226,11 +1226,12 @@ static int ufs_qcom_init(struct ufs_hba *hba)
>  		if (res) {
>  			host->dev_ref_clk_ctrl_mmio =
>  					devm_ioremap_resource(dev, res);
> -			if (IS_ERR(host->dev_ref_clk_ctrl_mmio)) {
> -				dev_warn(dev,
> -					"%s: could not map dev_ref_clk_ctrl_mmio, err %ld\n",
> +			if (IS_ERR((__force void const *)
> +				   host->dev_ref_clk_ctrl_mmio)) {
> +				dev_warn(dev, "%s: could not map dev_ref_clk_ctrl_mmio, err %ld\n",
>  					__func__,
> -					PTR_ERR(host->dev_ref_clk_ctrl_mmio));
> +					PTR_ERR((__force void const *)
> +						 host->dev_ref_clk_ctrl_mmio));
>  				host->dev_ref_clk_ctrl_mmio = NULL;
>  			}
>  			host->dev_ref_clk_en_mask = BIT(5);


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