x86/fpu: Rename regset FPU register accessors

Rename regset accessors to prefix them with 'regset_', because we
want to start using the 'fpregs_active' name elsewhere.

Reviewed-by: Borislav Petkov <bp@alien8.de>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>

arch/x86/include/asm/fpu/internal.h

@@ -46,17 +46,17 @@ extern void convert_from_fxsr(struct user_i387_ia32_struct *env,
 extern void convert_to_fxsr(struct task_struct *tsk,
 			    const struct user_i387_ia32_struct *env);
 
-extern user_regset_active_fn fpregs_active, xfpregs_active;
+extern user_regset_active_fn regset_fpregs_active, regset_xregset_fpregs_active;
 extern user_regset_get_fn fpregs_get, xfpregs_get, fpregs_soft_get,
 				xstateregs_get;
 extern user_regset_set_fn fpregs_set, xfpregs_set, fpregs_soft_set,
 				 xstateregs_set;
 
 /*
- * xstateregs_active == fpregs_active. Please refer to the comment
- * at the definition of fpregs_active.
+ * xstateregs_active == regset_fpregs_active. Please refer to the comment
+ * at the definition of regset_fpregs_active.
  */
-#define xstateregs_active	fpregs_active
+#define xstateregs_active	regset_fpregs_active
 
 #ifdef CONFIG_MATH_EMULATION
 extern void finit_soft_fpu(struct i387_soft_struct *soft);

arch/x86/kernel/fpu/core.c

@@ -403,18 +403,18 @@ void fpu__clear(struct task_struct *tsk)
 }
 
 /*
- * The xstateregs_active() routine is the same as the fpregs_active() routine,
+ * The xstateregs_active() routine is the same as the regset_fpregs_active() routine,
  * as the "regset->n" for the xstate regset will be updated based on the feature
  * capabilites supported by the xsave.
  */
-int fpregs_active(struct task_struct *target, const struct user_regset *regset)
+int regset_fpregs_active(struct task_struct *target, const struct user_regset *regset)
 {
 	struct fpu *target_fpu = &target->thread.fpu;
 
 	return target_fpu->fpstate_active ? regset->n : 0;
 }
 
-int xfpregs_active(struct task_struct *target, const struct user_regset *regset)
+int regset_xregset_fpregs_active(struct task_struct *target, const struct user_regset *regset)
 {
 	struct fpu *target_fpu = &target->thread.fpu;
 

arch/x86/kernel/ptrace.c

@@ -1296,7 +1296,7 @@ static struct user_regset x86_64_regsets[] __read_mostly = {
 		.core_note_type = NT_PRFPREG,
 		.n = sizeof(struct user_i387_struct) / sizeof(long),
 		.size = sizeof(long), .align = sizeof(long),
-		.active = xfpregs_active, .get = xfpregs_get, .set = xfpregs_set
+		.active = regset_xregset_fpregs_active, .get = xfpregs_get, .set = xfpregs_set
 	},
 	[REGSET_XSTATE] = {
 		.core_note_type = NT_X86_XSTATE,
@@ -1337,13 +1337,13 @@ static struct user_regset x86_32_regsets[] __read_mostly = {
 		.core_note_type = NT_PRFPREG,
 		.n = sizeof(struct user_i387_ia32_struct) / sizeof(u32),
 		.size = sizeof(u32), .align = sizeof(u32),
-		.active = fpregs_active, .get = fpregs_get, .set = fpregs_set
+		.active = regset_fpregs_active, .get = fpregs_get, .set = fpregs_set
 	},
 	[REGSET_XFP] = {
 		.core_note_type = NT_PRXFPREG,
 		.n = sizeof(struct user32_fxsr_struct) / sizeof(u32),
 		.size = sizeof(u32), .align = sizeof(u32),
-		.active = xfpregs_active, .get = xfpregs_get, .set = xfpregs_set
+		.active = regset_xregset_fpregs_active, .get = xfpregs_get, .set = xfpregs_set
 	},
 	[REGSET_XSTATE] = {
 		.core_note_type = NT_X86_XSTATE,