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Re: [PATCH 3/3] ath6kl: Remove few deadcode in main.c

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On 12/29/2011 12:35 PM, Vasanthakumar Thiagarajan wrote:
> 1. In ath6kl_add_new_sta(), if (ielen <= ATH6KL_MAX_IE) is going to be
> always true due to ielen being u8 and is checked against 256.
> 
> 2. In ath6kl_reset_device(), since control can never reach switch..case
> when the target_type is neither TARGET_TYPE_AR6003 nor TARGET_TYPE_AR6004,
> remove the default option of switch statement.

Two separate patches, please.

> @@ -62,8 +62,7 @@ static void ath6kl_add_new_sta(struct ath6kl *ar, u8 *mac, u16 aid, u8 *wpaie,
>  
>  	sta = &ar->sta_list[free_slot];
>  	memcpy(sta->mac, mac, ETH_ALEN);
> -	if (ielen <= ATH6KL_MAX_IE)
> -		memcpy(sta->wpa_ie, wpaie, ielen);
> +	memcpy(sta->wpa_ie, wpaie, ielen);

And then someone changes the u8 ielen to something else and accidentally
adds a bug. I would prefer to have an explicit check for the ielen to
make it obvious what's the maximum length.

I don't really like using u8 for ielen either. IMHO size_t or similar
would be better.

Kalle
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