[Ocfs2-tools-devel] [PATCH 3/3] Suppress warning when print __u64 in X86_64.take 2

[Sunil Mushran]

On ppc, ocfs2-tools are 32 bit. This is sort-of the convention
in powerpc where userspace is 32-bit.

Tao Ma wrote:
> Sunil,
> 	by now, I don't find a good way to resolve it on both powerpc and x86_64.
>
> PRIu64 is the same on 2 platforms.
> # if __WORDSIZE == 64
> #  define __PRI64_PREFIX        "l"
> #  define __PRIPTR_PREFIX       "l"
> # else
> #  define __PRI64_PREFIX        "ll"
> #  define __PRIPTR_PREFIX
> # endif
> So it should be "lu".
>
> while On x86_64,
> in /usr/include/asm-x86_64/types.h:typedef unsigned long long  __u64;
> And On powerpc
> in /usr/include/asm/types.h:
> #ifdef __powerpc64__
> typedef __signed__ long __s64;
> typedef unsigned long __u64;
> #else
>
> __u64 is defined as 2 different types, so I don't know there is a way to 
> suppress the warning on these 2 platforms except cast.
>
> If you think this solution isn't perfect, maybe I can leave it there and 
> commit the other 2 patches.
>
> Regards,
> Tao
>
> Sunil Mushran wrote:
>   
>> Thanks. It was getting painful to watch these warnings during builds.
>>
>> But am wondering if we can handle this without the way of casts