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SubjectRe: [PATCH 01/19] User-space API definition
From
2010/8/20 Stefan Richter <stefanr@s5r6.in-berlin.de>:

>> +struct ncr_session_input_data {
>> +     const void __user *data;
>> +     __kernel_size_t data_size;
>> +};
>> +
>> +};
> Why not using fixed-size fit-all members?
> struct ncr_session_input_data {
>        __u64 data;             /* user pointer, cast to/from u64 */
>        __u32 data_size;        /* or __u64? */
> };

A reason is that using (void*) is cleaner as an API. It avoids the
pointer to int casting and the warnings that such a cast will have.

regards,
Nikos
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