linux-kernel - Re: [PATCH] rtl8188eu: Replace rcu_dereference() with rcu_access

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Message-ID: <20140830204246.GA16563@kroah.com>
Date:	Sat, 30 Aug 2014 13:42:46 -0700
From:	Greg KH <gregkh@...uxfoundation.org>
To:	Andreea-Cristina Bernat <bernat.ada@...il.com>
Cc:	Larry.Finger@...inger.net, oat.elena@...il.com,
	devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
	paulmck@...ux.vnet.ibm.com
Subject: Re: [PATCH] rtl8188eu: Replace rcu_dereference() with
 rcu_access_pointer()

On Sun, Aug 17, 2014 at 02:43:37PM +0300, Andreea-Cristina Bernat wrote:
> The "rcu_dereference()" call is used directly in a condition.
> Since its return value is never dereferenced it is recommended to use
> "rcu_access_pointer()" instead of "rcu_dereference()".
> Therefore, this patch makes the replacement.
> 
> The following Coccinelle semantic patch was used:
> @@
> @@
> 
> (
>  if(
>  (<+...
> - rcu_dereference
> + rcu_access_pointer
>   (...)
>   ...+>)) {...}
> |
>  while(
>  (<+...
> - rcu_dereference
> + rcu_access_pointer
>   (...)
>   ...+>)) {...}
> )
> 
> Signed-off-by: Andreea-Cristina Bernat <bernat.ada@...il.com>
> ---
>  drivers/staging/rtl8188eu/core/rtw_mlme.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

This patch fails to apply to my tree, can you refresh it against the
staging-next branch of the staging.git tree on kernel.org and resend?

thanks,

greg k-h
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