X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Fi386%2Fmath-emu%2Ffpu_entry.c;h=633f954c34501c5771807c596ce8b0ba34ba9baf;hb=9bf4aaab3e101692164d49b7ca357651eb691cb6;hp=baebe5c08da7522cac347f28cfc1d0c0d7fc35cd;hpb=db216c3d5e4c040e557a50f8f5d35d5c415e8c1c;p=linux-2.6.git

diff --git a/arch/i386/math-emu/fpu_entry.c b/arch/i386/math-emu/fpu_entry.c
index baebe5c08..633f954c3 100644
--- a/arch/i386/math-emu/fpu_entry.c
+++ b/arch/i386/math-emu/fpu_entry.c
@@ -128,7 +128,7 @@ static u_char const type_table[64] = {
 u_char emulating=0;
 #endif /* RE_ENTRANT_CHECKING */
 
-static int valid_prefix(u_char *Byte, u_char **fpu_eip,
+static int valid_prefix(u_char *Byte, u_char __user **fpu_eip,
 			overrides *override);
 
 asmlinkage void math_emulate(long arg)
@@ -140,7 +140,7 @@ asmlinkage void math_emulate(long arg)
   FPU_REG loaded_data;
   FPU_REG *st0_ptr;
   u_char	  loaded_tag, st0_tag;
-  void *data_address;
+  void __user *data_address;
   struct address data_sel_off;
   struct address entry_sel_off;
   unsigned long code_base = 0;
@@ -192,7 +192,8 @@ asmlinkage void math_emulate(long arg)
 	  math_abort(FPU_info, SIGILL);
 	}
 
-      if ( SEG_D_SIZE(code_descriptor = LDT_DESCRIPTOR(FPU_CS)) )
+      code_descriptor = LDT_DESCRIPTOR(FPU_CS);
+      if ( SEG_D_SIZE(code_descriptor) )
 	{
 	  /* The above test may be wrong, the book is not clear */
 	  /* Segmented 32 bit protected mode */
@@ -214,7 +215,7 @@ asmlinkage void math_emulate(long arg)
   if (current->ptrace & PT_PTRACED)
     FPU_lookahead = 0;
 
-  if ( !valid_prefix(&byte1, (u_char **)&FPU_EIP,
+  if ( !valid_prefix(&byte1, (u_char __user **)&FPU_EIP,
 		     &addr_modes.override) )
     {
       RE_ENTRANT_CHECK_OFF;
@@ -257,7 +258,7 @@ do_another_FPU_instruction:
 
   RE_ENTRANT_CHECK_OFF;
   FPU_code_verify_area(1);
-  FPU_get_user(FPU_modrm, (u_char *) FPU_EIP);
+  FPU_get_user(FPU_modrm, (u_char __user *) FPU_EIP);
   RE_ENTRANT_CHECK_ON;
   FPU_EIP++;
 
@@ -336,23 +337,23 @@ do_another_FPU_instruction:
 	      switch ( (byte1 >> 1) & 3 )
 		{
 		case 0:
-		  unmasked = FPU_load_single((float *)data_address,
+		  unmasked = FPU_load_single((float __user *)data_address,
 					     &loaded_data);
 		  loaded_tag = unmasked & 0xff;
 		  unmasked &= ~0xff;
 		  break;
 		case 1:
-		  loaded_tag = FPU_load_int32((long *)data_address, &loaded_data);
+		  loaded_tag = FPU_load_int32((long __user *)data_address, &loaded_data);
 		  break;
 		case 2:
-		  unmasked = FPU_load_double((double *)data_address,
+		  unmasked = FPU_load_double((double __user *)data_address,
 					     &loaded_data);
 		  loaded_tag = unmasked & 0xff;
 		  unmasked &= ~0xff;
 		  break;
 		case 3:
 		default:  /* Used here to suppress gcc warnings. */
-		  loaded_tag = FPU_load_int16((short *)data_address, &loaded_data);
+		  loaded_tag = FPU_load_int16((short __user *)data_address, &loaded_data);
 		  break;
 		}
 
@@ -563,7 +564,7 @@ FPU_fwait_done:
   if (FPU_lookahead && !need_resched())
     {
       FPU_ORIG_EIP = FPU_EIP - code_base;
-      if ( valid_prefix(&byte1, (u_char **)&FPU_EIP,
+      if ( valid_prefix(&byte1, (u_char __user **)&FPU_EIP,
 			&addr_modes.override) )
 	goto do_another_FPU_instruction;
     }
@@ -579,11 +580,11 @@ FPU_fwait_done:
    all prefix bytes, further changes are needed in the emulator code
    which accesses user address space. Access to separate segments is
    important for msdos emulation. */
-static int valid_prefix(u_char *Byte, u_char **fpu_eip,
+static int valid_prefix(u_char *Byte, u_char __user **fpu_eip,
 			overrides *override)
 {
   u_char byte;
-  u_char *ip = *fpu_eip;
+  u_char __user *ip = *fpu_eip;
 
   *override = (overrides) { 0, 0, PREFIX_DEFAULT };       /* defaults */
 
@@ -679,9 +680,9 @@ void math_abort(struct info * info, unsigned int signal)
 #define sstatus_word() \
   ((S387->swd & ~SW_Top & 0xffff) | ((S387->ftop << SW_Top_Shift) & SW_Top))
 
-int restore_i387_soft(void *s387, struct _fpstate *buf)
+int restore_i387_soft(void *s387, struct _fpstate __user *buf)
 {
-  u_char *d = (u_char *)buf;
+  u_char __user *d = (u_char __user *)buf;
   int offset, other, i, tags, regnr, tag, newtop;
 
   RE_ENTRANT_CHECK_OFF;
@@ -725,9 +726,9 @@ int restore_i387_soft(void *s387, struct _fpstate *buf)
 }
 
 
-int save_i387_soft(void *s387, struct _fpstate * buf)
+int save_i387_soft(void *s387, struct _fpstate __user * buf)
 {
-  u_char *d = (u_char *)buf;
+  u_char __user *d = (u_char __user *)buf;
   int offset = (S387->ftop & 7) * 10, other = 80 - offset;
 
   RE_ENTRANT_CHECK_OFF;