x86/fpu: Rename restore_fpu_checking() to copy_fpstate_to_fpregs()
fpu_restore_checking() is a helper function of restore_fpu_checking(),
but this is not apparent from the naming.
Both copy fpstate contents to fpregs, while the fuller variant does
a full copy without leaking information.
So rename them to:
copy_fpstate_to_fpregs()
__copy_fpstate_to_fpregs()
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
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>
diff --git a/arch/x86/include/asm/fpu/internal.h b/arch/x86/include/asm/fpu/internal.h
index 31bfda8..c09aea1 100644
--- a/arch/x86/include/asm/fpu/internal.h
+++ b/arch/x86/include/asm/fpu/internal.h
@@ -289,7 +289,7 @@
extern void fpu__save(struct fpu *fpu);
-static inline int fpu_restore_checking(struct fpu *fpu)
+static inline int __copy_fpstate_to_fpregs(struct fpu *fpu)
{
if (use_xsave())
return fpu_xrstor_checking(&fpu->state.xsave);
@@ -299,7 +299,7 @@
return frstor_checking(&fpu->state.fsave);
}
-static inline int restore_fpu_checking(struct fpu *fpu)
+static inline int copy_fpstate_to_fpregs(struct fpu *fpu)
{
/*
* AMD K7/K8 CPUs don't save/restore FDP/FIP/FOP unless an exception is
@@ -314,7 +314,7 @@
: : [addr] "m" (fpu->fpregs_active));
}
- return fpu_restore_checking(fpu);
+ return __copy_fpstate_to_fpregs(fpu);
}
/*
@@ -520,7 +520,7 @@
static inline void switch_fpu_finish(struct fpu *new_fpu, fpu_switch_t fpu_switch)
{
if (fpu_switch.preload) {
- if (unlikely(restore_fpu_checking(new_fpu)))
+ if (unlikely(copy_fpstate_to_fpregs(new_fpu)))
fpu__reset(new_fpu);
}
}