Re: [PATCH 01/19] User-space API definition

2010/8/20 Stefan Richter [off-list ref]:

quoted

+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