linux-kernel - Re: [PATCH] staging: rtl8192u: Fix type mismatch warnings reported by sparse

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Message-ID: <20170512090644.GA26599@kroah.com>
Date:   Fri, 12 May 2017 11:06:44 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     suniel.spartan@...il.com
Cc:     linux-kernel@...r.kernel.org, devel@...verdev.osuosl.org,
        sunil.m@...hveda.org
Subject: Re: [PATCH] staging: rtl8192u: Fix type mismatch warnings reported
 by sparse

On Mon, May 01, 2017 at 01:19:24PM +0530, suniel.spartan@...il.com wrote:
> From: Suniel Mahesh <suniel.spartan@...il.com>
> 
> The function Mk16_le() is calling le16_to_cpu() internally.
> le16_to_cpu() takes an argument of type (__le *) but the argument
> passed is of type (u16 *). Fixed it by passing the correct argument.
> 
> Signed-off-by: Suniel Mahesh <suniel.spartan@...il.com>
> ---
>  .../rtl8192u/ieee80211/ieee80211_crypt_tkip.c      | 22 +++++++++++-----------
>  1 file changed, 11 insertions(+), 11 deletions(-)
> 
> diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_tkip.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_tkip.c
> index 5039172..11ddf30 100644
> --- a/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_tkip.c
> +++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_tkip.c
> @@ -172,7 +172,7 @@ static inline u16 Mk16(u8 hi, u8 lo)
>  }
>  
>  
> -static inline u16 Mk16_le(u16 *v)
> +static inline u16 Mk16_le(__le16 *v)
>  {
>  	return le16_to_cpu(*v);
>  }

Ick, no, just replace all usages of this function with the "real"
le16_to_cpu() call.

thanks,

greg k-h