[PATCH 042/208] x86/fpu: Move fpu_copy() to fpu/core.c

[Ingo Molnar]

Move fpu_copy() where its only user is.

Beyond readability this also speeds up compilation, as fpu-internal.h
is included in over a dozen .c files.

Reviewed-by: Borislav Petkov <bp@xxxxxxxxx>
Cc: Andy Lutomirski <luto@xxxxxxxxxxxxxx>
Cc: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>
Cc: Fenghua Yu <fenghua.yu@xxxxxxxxx>
Cc: H. Peter Anvin <hpa@xxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Oleg Nesterov <oleg@xxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
 arch/x86/include/asm/fpu-internal.h | 14 --------------
 arch/x86/kernel/fpu/core.c          | 14 ++++++++++++++
 2 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/arch/x86/include/asm/fpu-internal.h b/arch/x86/include/asm/fpu-internal.h
index 1e2b6c67b1f1..e180fb96dd0d 100644
--- a/arch/x86/include/asm/fpu-internal.h
+++ b/arch/x86/include/asm/fpu-internal.h
@@ -565,20 +565,6 @@ extern int fpstate_alloc(struct fpu *fpu);
 extern void fpstate_free(struct fpu *fpu);
 extern int fpu__copy(struct task_struct *dst, struct task_struct *src);
 
-static inline void fpu_copy(struct task_struct *dst, struct task_struct *src)
-{
-	if (use_eager_fpu()) {
-		memset(&dst->thread.fpu.state->xsave, 0, xstate_size);
-		__save_fpu(dst);
-	} else {
-		struct fpu *dfpu = &dst->thread.fpu;
-		struct fpu *sfpu = &src->thread.fpu;
-
-		fpu__save(src);
-		memcpy(dfpu->state, sfpu->state, xstate_size);
-	}
-}
-
 static inline unsigned long
 alloc_mathframe(unsigned long sp, int ia32_frame, unsigned long *buf_fx,
 		unsigned long *size)
diff --git a/arch/x86/kernel/fpu/core.c b/arch/x86/kernel/fpu/core.c
index c99c79af48d2..3f3c79c75e37 100644
--- a/arch/x86/kernel/fpu/core.c
+++ b/arch/x86/kernel/fpu/core.c
@@ -203,6 +203,20 @@ void fpstate_free(struct fpu *fpu)
 }
 EXPORT_SYMBOL_GPL(fpstate_free);
 
+static void fpu_copy(struct task_struct *dst, struct task_struct *src)
+{
+	if (use_eager_fpu()) {
+		memset(&dst->thread.fpu.state->xsave, 0, xstate_size);
+		__save_fpu(dst);
+	} else {
+		struct fpu *dfpu = &dst->thread.fpu;
+		struct fpu *sfpu = &src->thread.fpu;
+
+		fpu__save(src);
+		memcpy(dfpu->state, sfpu->state, xstate_size);
+	}
+}
+
 int fpu__copy(struct task_struct *dst, struct task_struct *src)
 {
 	dst->thread.fpu.counter = 0;
-- 
2.1.0

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