__attribute__((regparm(3)))

[horse]

hi:

  If I add __attribute__((regparm(3))) infront of function declaration, like this :
   
     int do_signal(int a,int b) __attribute__((regparm(3))); 

  then , at .c file , define this function like this :
    
  int do_signal(int a,int b)
    {
            .......
    }

  when compiling ,it report this : error: conflicting types for ‘do_signal’;
  if I erase "__attribute__((regparm(3)))",it can be through compilation.

  But it is needed to add "__attribute__((regparm(3)))",how can I do ?

thanks