linux-kernel - Re: [PATCH v2 5/6] openrisc: signal: Fix sparse address space warnings

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Message-ID: <20200806190449.xqflhmbiiv5btusf@ltop.local>
Date:   Thu, 6 Aug 2020 21:04:49 +0200
From:   Luc Van Oostenryck <luc.vanoostenryck@...il.com>
To:     Stafford Horne <shorne@...il.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Jonas Bonn <jonas@...thpole.se>,
        Stefan Kristiansson <stefan.kristiansson@...nalahti.fi>,
        openrisc@...ts.librecores.org
Subject: Re: [PATCH v2 5/6] openrisc: signal: Fix sparse address space
 warnings

On Thu, Aug 06, 2020 at 06:07:24AM +0900, Stafford Horne wrote:
> ---
>  arch/openrisc/kernel/signal.c | 14 +++++++-------
>  1 file changed, 7 insertions(+), 7 deletions(-)
> 
> diff --git a/arch/openrisc/kernel/signal.c b/arch/openrisc/kernel/signal.c
> index 4f0754874d78..7ce0728412f6 100644
> --- a/arch/openrisc/kernel/signal.c
> +++ b/arch/openrisc/kernel/signal.c
> @@ -76,7 +76,7 @@ asmlinkage long _sys_rt_sigreturn(struct pt_regs *regs)
>  	 * then frame should be dword aligned here.  If it's
>  	 * not, then the user is trying to mess with us.
>  	 */
> -	if (((long)frame) & 3)
> +	if (((__force unsigned long)frame) & 3)
>  		goto badframe;

Same as patch 6, the __force is not needed.
  
-- Luc