validation/Wcast-to-as.c

   1 #define __user __attribute__((address_space(1)))
   2
   3 typedef __UINTPTR_TYPE__ uintptr_t;
   4 typedef unsigned long ulong;
   5 typedef struct s obj_t;
   6
   7 static void expl(ulong u, uintptr_t uip, void *v, obj_t *o, obj_t __user *p)
   8 {
   9         (obj_t*)(u);
  10         (obj_t __user*)(u);
  11
  12         (obj_t*)(uip);
  13         (obj_t __user*)(uip);
  14
  15         (obj_t*)(v);
  16         (obj_t __user*)(v);
  17
  18         (ulong)(o);
  19         (void *)(o);
  20         (obj_t*)(o);
  21         (obj_t __user*)(o);
  22
  23         (ulong)(p);
  24         (obj_t __user*)(p);
  25
  26 }
  27
  28 /*
  29  * check-name: cast-to-as
  30  * check-command: sparse -Wcast-to-as $file
  31  *
  32  * check-error-start
  33 Wcast-to-as.c:16:10: warning: cast adds address space '<asn:1>' to expression
  34 Wcast-to-as.c:21:10: warning: cast adds address space '<asn:1>' to expression
  35  * check-error-end
  36  */