读fbmem.c。。。

#define __setup_param(str, unique_id, fn, early) \ 231 static const char __setup_str_##unique_id[] __initconst \ 232 __aligned(1) = str; \ 233 static struct obs_kernel_param __setup_##unique_id \ 234 __used __section(.init.setup) \ 235 __attribute__((aligned((sizeof(long))))) \ 236 = { __setup_str_##unique_id, fn, early }__setup("video=", video_setup)
238 #define __setup(str, fn)                                        \
239         __setup_param(str, fn, fn, 0)