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Subject: Re: [PATCH] powerpc/mm/radix: add missing braces for single statement
 block
To:     Mathieu Malaterre <malat@debian.org>,
        Michael Ellerman <mpe@ellerman.id.au>
Cc:     Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>,
        linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
References: <20180408194424.8719-1-malat@debian.org>
From:   Randy Dunlap <rdunlap@infradead.org>
Message-ID: <a21ced59-8cf6-b8e0-2305-fb9d040dfc5c@infradead.org>
Date:   Sun, 8 Apr 2018 13:34:32 -0700
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On 04/08/2018 12:44 PM, Mathieu Malaterre wrote:
> In commit 7a22d6321c3d ("powerpc/mm/radix: Update command line parsing for
> disable_radix") an `if` statement was added for a possible empty body
> (prom_debug).
> 
> Fix the following warning, treated as error with W=1:
> 
>   arch/powerpc/kernel/prom_init.c:656:46: error: suggest braces around empty body in an ‘if’ statement [-Werror=empty-body]
> 
> Signed-off-by: Mathieu Malaterre <malat@debian.org>
> ---
>  arch/powerpc/kernel/prom_init.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
> index 5ae153b97d0a..f0e802495530 100644
> --- a/arch/powerpc/kernel/prom_init.c
> +++ b/arch/powerpc/kernel/prom_init.c
> @@ -652,8 +652,9 @@ static void __init early_cmdline_parse(void)
>  		} else
>  			prom_radix_disable = true;
>  	}
> -	if (prom_radix_disable)
> +	if (prom_radix_disable) {
>  		prom_debug("Radix disabled from cmdline\n");

Looks like the macro for #prom_debug() should be fixed instead.

> +	}
>  }
>  
>  #if defined(CONFIG_PPC_PSERIES) || defined(CONFIG_PPC_POWERNV)
> 


-- 
~Randy