Re: [PATCH] use size_t for the broken ioctl numbers

[Arnd Bergmann]

Andreas Schwab wrote:
> Linus Torvalds <torvalds@xxxxxxxx> writes:
>> Ie, change the (sizeof(x)) to something like
>>
>>      ({ x __dummy; sizeof(__dummy); })
>>
>> which should work with all compiler versions.
> 
> This won't work with array types, eg. in <linux/random.h>:
> 
> #define RNDGETPOOL    _IOR( 'R', 0x02, int [2] )

How about changing (sizeof(x)) to (sizeof(x[1]))?
It will result in "parse error before `['" when x is not
a type or an array type.

        Arnd <><
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