[U-Boot] [PATCH 1/2] FAT: remove ifdefs to make the code more readable

[Richard Genoud]

2012/12/13 Marek Vasut <marex at denx.de>:
> Dear Richard Genoud,
>
>> ifdefs in the code are making it harder to read.
>> The use of simple if(VFAT_ENABLED) makes no more code and is cleaner.
>> (the code is discarded by the compiler and linker instead of the
>> preprocessor.)
>>
>> and bonus, now the code compiles even if CONFIG_SUPPORT_VFAT is not
>> defined.
>>
>> Signed-off-by: Richard Genoud <richard.genoud at gmail.com>
>> ---
>>  fs/fat/fat.c       |   55
>> +++++++++++++++++++++++++++------------------------ fs/fat/fat_write.c |
>> 11 ++-------
>>  2 files changed, 32 insertions(+), 34 deletions(-)
>>
>> diff --git a/fs/fat/fat.c b/fs/fat/fat.c
>> index 393c378..c79e3e3 100644
>> --- a/fs/fat/fat.c
>> +++ b/fs/fat/fat.c
>> @@ -34,6 +34,12 @@
>>  #include <malloc.h>
>>  #include <linux/compiler.h>
>>
>> +#ifdef CONFIG_SUPPORT_VFAT
>> +#define VFAT_ENABLED 1
>> +#else
>> +#define VFAT_ENABLED 0
>> +#endif
> [...]
>
> Make it static const int maybe ?
I hesitate to make them static const, I can't figure why it's better
to use static const variable instead of defines.
Could you enlighten me ?

Best regards,
Richard.