linux-kernel - Re: [PATCH] lib: mpi: Use "static inline" instead of "extern inline" in header file for __GNUC_

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Message-ID: <545F3307.4000305@gmail.com>
Date:	Sun, 09 Nov 2014 17:25:27 +0800
From:	Chen Gang <gang.chen.5i5j@...il.com>
To:	Joe Perches <joe@...ches.com>
CC:	dmitry.kasatkin@...el.com,
	"akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] lib: mpi: Use "static inline" instead of "extern inline"
 in header file for __GNUC__

On 11/09/2014 05:11 PM, Joe Perches wrote:
> On Sun, 2014-11-09 at 16:58 +0800, Chen Gang wrote:
>> In header file, "extern inline" may cause multiple definition, so need
>> change it to "static inline". And also need be quoted  by __GNUC__ for
>> they are as inline functions only for __GNUC__.
> []
>> diff --git a/lib/mpi/mpi-inline.h b/lib/mpi/mpi-inline.h
> []
>> @@ -30,7 +30,7 @@
>>  #define G10_MPI_INLINE_H
>>  
>>  #ifndef G10_MPI_INLINE_DECL
>> -#define G10_MPI_INLINE_DECL  extern inline
>> +#define G10_MPI_INLINE_DECL  static inline
> 
> Why not remove the #define and use static inline
> in the 4 places the #define is currently used?
> 

I just follow the original author's ways, the original author may think
it is useful.

I guess, it may be used by other systems (neither Linux kernel nor gcc).
For another compiler, it may need another syntax for it (although I am
not quite sure about it).

So for safety reason, still keep it no touch, at present.

Thanks.
-- 
Chen Gang

Open share and attitude like air water and life which God blessed
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