linux-kernel - Re: [PATCH v2] staging: wilc1000: fix cast to restricted _

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Message-ID: <61a272a5-3c6f-4e69-2ce9-b7c58b427750@lwfinger.net>
Date:   Sat, 5 Jan 2019 10:02:23 -0600
From:   Larry Finger <Larry.Finger@...inger.net>
To:     Július Milan <jmilan.dev@...il.com>,
        linux-kernel@...r.kernel.org
Cc:     devel@...verdev.osuosl.org, linux-wireless@...r.kernel.org,
        gregkh@...uxfoundation.org, ajay.kathat@...rochip.com,
        adham.abozaeid@...rochip.com
Subject: Re: [PATCH v2] staging: wilc1000: fix cast to restricted __le32

On 1/5/19 3:10 AM, Július Milan wrote:
> Fixes the following sparse warnings:
> 
> drivers/staging/wilc1000/host_interface.c:2360:30: warning:
>   incorrect type in assignment (different base types)
>      expected restricted __le32 [addressable] [assigned] [usertype] frame_type
>      got restricted __le16 [usertype] <noident>
> 
> Fixes: 147ccfd451024 ("staging: wilc1000: handle mgmt_frame_register ops from cfg82011 context")
> Signed-off-by: Július Milan <jmilan.dev@...il.com>
> ---
>   drivers/staging/wilc1000/host_interface.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c
> index 5dae6e7155d3..07c3d6293573 100644
> --- a/struct wilc_reg_frame
> +++ b/drivers/staging/wilc1000/host_interface.c
> @@ -2357,7 +2357,7 @@ void wilc_frame_register(struct wilc_vif *vif, u16 frame_type, bool reg)
>   	default:
>   		break;
>   	}
> -	reg_frame.frame_type = cpu_to_le16(frame_type);
> +	reg_frame.frame_type = cpu_to_le32(frame_type);
>   	result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1,
>   				      wilc_get_vif_idx(vif));
>   	if (result)

Before you send V3, are you sure this is the correct fix? As "frame_type" is 
input as u16, it seems to me that the frame_type member of struct wilc_reg_frame 
should be __le16, not __le32.

Larry