linux-kernel - Re: [PATCH net-next 2/2] wifi: ath10k: fix Wvoid-pointer-to-enum-cast warning

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Date:   Thu, 10 Aug 2023 06:36:41 -0700
From:   Jeff Johnson <quic_jjohnson@...cinc.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Kalle Valo <kvalo@...nel.org>, <ath10k@...ts.infradead.org>,
        <linux-wireless@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <ath11k@...ts.infradead.org>
CC:     Andi Shyti <andi.shyti@...nel.org>
Subject: Re: [PATCH net-next 2/2] wifi: ath10k: fix Wvoid-pointer-to-enum-cast
 warning

On 8/10/2023 2:12 AM, Krzysztof Kozlowski wrote:
> 'hw_rev' is an enum, thus cast of pointer on 64-bit compile test with W=1
> causes:
> 
>    ath10k/ahb.c:736:11: error: cast to smaller integer type 'enum ath10k_hw_rev' from 'const void *' [-Werror,-Wvoid-pointer-to-enum-cast]
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>

Acked-by: Jeff Johnson <quic_jjohnson@...cinc.com>

> ---
>   drivers/net/wireless/ath/ath10k/ahb.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/net/wireless/ath/ath10k/ahb.c b/drivers/net/wireless/ath/ath10k/ahb.c
> index 4a006fb4d424..95bcf54ddc3f 100644
> --- a/drivers/net/wireless/ath/ath10k/ahb.c
> +++ b/drivers/net/wireless/ath/ath10k/ahb.c
> @@ -733,7 +733,7 @@ static int ath10k_ahb_probe(struct platform_device *pdev)
>   	int ret;
>   	struct ath10k_bus_params bus_params = {};
>   
> -	hw_rev = (enum ath10k_hw_rev)of_device_get_match_data(&pdev->dev);
> +	hw_rev = (uintptr_t)of_device_get_match_data(&pdev->dev);
>   	if (!hw_rev) {
>   		dev_err(&pdev->dev, "OF data missing\n");
>   		return -EINVAL;