linux-kernel - [tip: x86/fpu] x86/fpu: Move fpstate functions to api.h

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Date:   Wed, 20 Oct 2021 13:44:30 -0000
From:   "tip-bot2 for Thomas Gleixner" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Thomas Gleixner <tglx@...utronix.de>, Borislav Petkov <bp@...e.de>,
        x86@...nel.org, linux-kernel@...r.kernel.org
Subject: [tip: x86/fpu] x86/fpu: Move fpstate functions to api.h

The following commit has been merged into the x86/fpu branch of tip:

Commit-ID:     90489f1dee8b703a3301857917c0aba0b22b5d83
Gitweb:        https://git.kernel.org/tip/90489f1dee8b703a3301857917c0aba0b22b5d83
Author:        Thomas Gleixner <tglx@...utronix.de>
AuthorDate:    Fri, 15 Oct 2021 03:16:33 +02:00
Committer:     Borislav Petkov <bp@...e.de>
CommitterDate: Wed, 20 Oct 2021 15:27:28 +02:00

x86/fpu: Move fpstate functions to api.h

Move function declarations which need to be globally available to api.h
where they belong.

Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Signed-off-by: Borislav Petkov <bp@...e.de>
Link: https://lkml.kernel.org/r/20211015011539.792363754@linutronix.de
---
 arch/x86/include/asm/fpu/api.h      |  9 +++++++++
 arch/x86/include/asm/fpu/internal.h |  9 ---------
 arch/x86/kernel/fpu/internal.h      |  3 +++
 arch/x86/math-emu/fpu_entry.c       |  2 +-
 4 files changed, 13 insertions(+), 10 deletions(-)

diff --git a/arch/x86/include/asm/fpu/api.h b/arch/x86/include/asm/fpu/api.h
index 77a732e..56cf884 100644
--- a/arch/x86/include/asm/fpu/api.h
+++ b/arch/x86/include/asm/fpu/api.h
@@ -110,6 +110,15 @@ extern int cpu_has_xfeatures(u64 xfeatures_mask, const char **feature_name);
 
 static inline void update_pasid(void) { }
 
+#ifdef CONFIG_MATH_EMULATION
+extern void fpstate_init_soft(struct swregs_state *soft);
+#else
+static inline void fpstate_init_soft(struct swregs_state *soft) {}
+#endif
+
+/* fpstate */
+extern union fpregs_state init_fpstate;
+
 /* fpstate-related functions which are exported to KVM */
 extern void fpu_init_fpstate_user(struct fpu *fpu);
 
diff --git a/arch/x86/include/asm/fpu/internal.h b/arch/x86/include/asm/fpu/internal.h
index 74b7cc3..d8bb491 100644
--- a/arch/x86/include/asm/fpu/internal.h
+++ b/arch/x86/include/asm/fpu/internal.h
@@ -42,15 +42,6 @@ extern void fpu__init_system(struct cpuinfo_x86 *c);
 extern void fpu__init_check_bugs(void);
 extern void fpu__resume_cpu(void);
 
-extern union fpregs_state init_fpstate;
-extern void fpstate_init_user(union fpregs_state *state);
-
-#ifdef CONFIG_MATH_EMULATION
-extern void fpstate_init_soft(struct swregs_state *soft);
-#else
-static inline void fpstate_init_soft(struct swregs_state *soft) {}
-#endif
-
 extern void restore_fpregs_from_fpstate(union fpregs_state *fpstate, u64 mask);
 
 extern bool copy_fpstate_to_sigframe(void __user *buf, void __user *fp, int size);
diff --git a/arch/x86/kernel/fpu/internal.h b/arch/x86/kernel/fpu/internal.h
index 5ddc09e..bd7f813 100644
--- a/arch/x86/kernel/fpu/internal.h
+++ b/arch/x86/kernel/fpu/internal.h
@@ -22,4 +22,7 @@ static __always_inline __pure bool use_fxsr(void)
 /* Init functions */
 extern void fpu__init_prepare_fx_sw_frame(void);
 
+/* Used in init.c */
+extern void fpstate_init_user(union fpregs_state *state);
+
 #endif
diff --git a/arch/x86/math-emu/fpu_entry.c b/arch/x86/math-emu/fpu_entry.c
index 8679a9d..50195e2 100644
--- a/arch/x86/math-emu/fpu_entry.c
+++ b/arch/x86/math-emu/fpu_entry.c
@@ -31,7 +31,7 @@
 #include <linux/uaccess.h>
 #include <asm/traps.h>
 #include <asm/user.h>
-#include <asm/fpu/internal.h>
+#include <asm/fpu/api.h>
 
 #include "fpu_system.h"
 #include "fpu_emu.h"