[PATCH] Add __user tags to {save,restore}_fp_context variants

[Atsushi Nemoto <anemo@xxxxxxxxxxxxx>]

Signed-off-by: Atsushi Nemoto <anemo@xxxxxxxxxxxxx>
---
 arch/mips/kernel/traps.c            |   28 ++++++++++++++--------------
 arch/mips/math-emu/kernel_linkage.c |    8 ++++----
 include/asm-mips/fpu.h              |    8 ++++----
 3 files changed, 22 insertions(+), 22 deletions(-)

diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 31c897b..7d76a85 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -1249,24 +1249,24 @@ static inline void mips_srs_init(void)
 /*
  * This is used by native signal handling
  */
-asmlinkage int (*save_fp_context)(struct sigcontext *sc);
-asmlinkage int (*restore_fp_context)(struct sigcontext *sc);
+asmlinkage int (*save_fp_context)(struct sigcontext __user *sc);
+asmlinkage int (*restore_fp_context)(struct sigcontext __user *sc);
 
-extern asmlinkage int _save_fp_context(struct sigcontext *sc);
-extern asmlinkage int _restore_fp_context(struct sigcontext *sc);
+extern asmlinkage int _save_fp_context(struct sigcontext __user *sc);
+extern asmlinkage int _restore_fp_context(struct sigcontext __user *sc);
 
-extern asmlinkage int fpu_emulator_save_context(struct sigcontext *sc);
-extern asmlinkage int fpu_emulator_restore_context(struct sigcontext *sc);
+extern asmlinkage int fpu_emulator_save_context(struct sigcontext __user *sc);
+extern asmlinkage int fpu_emulator_restore_context(struct sigcontext __user *sc);
 
 #ifdef CONFIG_SMP
-static int smp_save_fp_context(struct sigcontext *sc)
+static int smp_save_fp_context(struct sigcontext __user *sc)
 {
 	return raw_cpu_has_fpu
 	       ? _save_fp_context(sc)
 	       : fpu_emulator_save_context(sc);
 }
 
-static int smp_restore_fp_context(struct sigcontext *sc)
+static int smp_restore_fp_context(struct sigcontext __user *sc)
 {
 	return raw_cpu_has_fpu
 	       ? _restore_fp_context(sc)
@@ -1296,14 +1296,14 @@ static inline void signal_init(void)
 /*
  * This is used by 32-bit signal stuff on the 64-bit kernel
  */
-asmlinkage int (*save_fp_context32)(struct sigcontext32 *sc);
-asmlinkage int (*restore_fp_context32)(struct sigcontext32 *sc);
+asmlinkage int (*save_fp_context32)(struct sigcontext32 __user *sc);
+asmlinkage int (*restore_fp_context32)(struct sigcontext32 __user *sc);
 
-extern asmlinkage int _save_fp_context32(struct sigcontext32 *sc);
-extern asmlinkage int _restore_fp_context32(struct sigcontext32 *sc);
+extern asmlinkage int _save_fp_context32(struct sigcontext32 __user *sc);
+extern asmlinkage int _restore_fp_context32(struct sigcontext32 __user *sc);
 
-extern asmlinkage int fpu_emulator_save_context32(struct sigcontext32 *sc);
-extern asmlinkage int fpu_emulator_restore_context32(struct sigcontext32 *sc);
+extern asmlinkage int fpu_emulator_save_context32(struct sigcontext32 __user *sc);
+extern asmlinkage int fpu_emulator_restore_context32(struct sigcontext32 __user *sc);
 
 static inline void signal32_init(void)
 {
diff --git a/arch/mips/math-emu/kernel_linkage.c b/arch/mips/math-emu/kernel_linkage.c
index 5b3390f..ed49ef0 100644
--- a/arch/mips/math-emu/kernel_linkage.c
+++ b/arch/mips/math-emu/kernel_linkage.c
@@ -51,7 +51,7 @@ void fpu_emulator_init_fpu(void)
  * with appropriate macros from uaccess.h
  */
 
-int fpu_emulator_save_context(struct sigcontext *sc)
+int fpu_emulator_save_context(struct sigcontext __user *sc)
 {
 	int i;
 	int err = 0;
@@ -65,7 +65,7 @@ int fpu_emulator_save_context(struct sig
 	return err;
 }
 
-int fpu_emulator_restore_context(struct sigcontext *sc)
+int fpu_emulator_restore_context(struct sigcontext __user *sc)
 {
 	int i;
 	int err = 0;
@@ -84,7 +84,7 @@ int fpu_emulator_restore_context(struct
  * This is the o32 version
  */
 
-int fpu_emulator_save_context32(struct sigcontext32 *sc)
+int fpu_emulator_save_context32(struct sigcontext32 __user *sc)
 {
 	int i;
 	int err = 0;
@@ -98,7 +98,7 @@ int fpu_emulator_save_context32(struct s
 	return err;
 }
 
-int fpu_emulator_restore_context32(struct sigcontext32 *sc)
+int fpu_emulator_restore_context32(struct sigcontext32 __user *sc)
 {
 	int i;
 	int err = 0;
diff --git a/include/asm-mips/fpu.h b/include/asm-mips/fpu.h
index dfecb7b..4e12d1f 100644
--- a/include/asm-mips/fpu.h
+++ b/include/asm-mips/fpu.h
@@ -27,11 +27,11 @@
 struct sigcontext;
 struct sigcontext32;
 
-extern asmlinkage int (*save_fp_context)(struct sigcontext *sc);
-extern asmlinkage int (*restore_fp_context)(struct sigcontext *sc);
+extern asmlinkage int (*save_fp_context)(struct sigcontext __user *sc);
+extern asmlinkage int (*restore_fp_context)(struct sigcontext __user *sc);
 
-extern asmlinkage int (*save_fp_context32)(struct sigcontext32 *sc);
-extern asmlinkage int (*restore_fp_context32)(struct sigcontext32 *sc);
+extern asmlinkage int (*save_fp_context32)(struct sigcontext32 __user *sc);
+extern asmlinkage int (*restore_fp_context32)(struct sigcontext32 __user *sc);
 
 extern void fpu_emulator_init_fpu(void);
 extern void _init_fpu(void);