Re: [PATCH] staging: rtl8723au: Fix sparse warnings

[Jes Sorensen]

Krzysztof Konopko <kris@xxxxxxxxxxx> writes:
> Some struct fields in wifi.h are meant to be __le16 bu were declared as
> unsigned short.  This was reported by sparse:
>
>   rtw_wlan_util.c:538:24: warning: cast to restricted __le16
>   rtw_wlan_util.c:1544:29: warning: cast to restricted __le16
>   rtw_wlan_util.c:1546:25: warning: cast to restricted __le16
>
> This patch changes declared types of the struct fields involved.
>
> Signed-off-by: Krzysztof Konopko <kris@xxxxxxxxxxx>
> ---
>  drivers/staging/rtl8723au/include/wifi.h | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/staging/rtl8723au/include/wifi.h b/drivers/staging/rtl8723au/include/wifi.h
> index fd3da3b..8a2adc5 100644
> --- a/drivers/staging/rtl8723au/include/wifi.h
> +++ b/drivers/staging/rtl8723au/include/wifi.h
> @@ -28,7 +28,7 @@
>  struct AC_param {
>  	unsigned char		ACI_AIFSN;
>  	unsigned char		CW;
> -	unsigned short	TXOP_limit;
> +	__le16			TXOP_limit;
>  }  __packed;
>  
>  struct WMM_para_element {
> @@ -39,9 +39,9 @@ struct WMM_para_element {
>  
>  struct ADDBA_request {
>  	unsigned char		dialog_token;
> -	unsigned short	BA_para_set;
> +	__le16		BA_para_set;
>  	unsigned short	BA_timeout_value;
> -	unsigned short	BA_starting_seqctrl;
> +	__le16		BA_starting_seqctrl;
>  }  __packed;

If you are going to make the struct comply with the on-wire data format,
be consistent. Don't just change half the elements of the struct - that
will just lead to confusion.

Jes
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