linux-kernel - Re: [PATCH] ARM: cygnus: fix const declaration bcm_cygnus_dt

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Message-ID: <5510F4AB.1000101@broadcom.com>
Date:	Mon, 23 Mar 2015 22:22:51 -0700
From:	Ray Jui <rjui@...adcom.com>
To:	Scott Branden <sbranden@...adcom.com>,
	Stefan Agner <stefan@...er.ch>, <f.fainelli@...il.com>
CC:	<bcm@...thebug.org>, <mporter@...aro.org>,
	<linux@....linux.org.uk>, <jonathar@...adcom.com>,
	<bcm-kernel-feedback-list@...adcom.com>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>,
	<llvmlinux@...ts.linuxfoundation.org>
Subject: Re: [PATCH] ARM: cygnus: fix const declaration bcm_cygnus_dt_compat



On 3/23/2015 10:18 PM, Scott Branden wrote:
> Hi Stefan,
> 
> On 15-03-21 04:45 PM, Stefan Agner wrote:
>> The const declaration for char* is actually duplicated, however
>> the array of strings is currently not constant. However, typically
>> the dt_compat array is declared as const char *const. Follow
>> that convention and also add the __initconst macro for constant
>> initialization data.
>>
> Acked-by: Scott Branden <sbranden@...adcom.com>
>> Signed-off-by: Stefan Agner <stefan@...er.ch>
>> ---
>> This was uncovered by a LLVM/clang warning:
>> arch/arm/mach-bcm/bcm_cygnus.c:16:19: warning: duplicate 'const'
>> declaration
>> specifier [-Wduplicate-decl-specifier]
>> static const char const *bcm_cygnus_dt_compat[] = {
>>                    ^~~~~~
>> 1 warning generated.
>>
>>   arch/arm/mach-bcm/bcm_cygnus.c | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/arch/arm/mach-bcm/bcm_cygnus.c
>> b/arch/arm/mach-bcm/bcm_cygnus.c
>> index 30dc58b..7ae894c 100644
>> --- a/arch/arm/mach-bcm/bcm_cygnus.c
>> +++ b/arch/arm/mach-bcm/bcm_cygnus.c
>> @@ -13,7 +13,7 @@
>>
>>   #include <asm/mach/arch.h>
>>
>> -static const char const *bcm_cygnus_dt_compat[] = {
>> +static const char * const bcm_cygnus_dt_compat[] __initconst = {
>>       "brcm,cygnus",
>>       NULL,
>>   };
>>
> Thanks for submitting.  We will test this.
> 
> Scott

Change looks fine and tested fine on Cygnus BCM958300k board. Thanks!

Reviewed-by: Ray Jui <rjui@...adcom.com>
Tested-by: Ray Jui <rjui@...adcom.com>
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