diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2021-06-23 15:01:59 +0300 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2021-06-23 19:26:43 +0300 |
| commit | ebe7234b08a42d69bae94c4062a84777ea26ef99 (patch) | |
| tree | 295fb5e38b8daed68ae1e86d4fb269b045cf0d22 /arch/x86/include/asm/fpu/internal.h | |
| parent | 522e92743b35351bda1b6a9136560f833a9c2490 (diff) | |
| download | linux-ebe7234b08a42d69bae94c4062a84777ea26ef99.tar.xz | |
x86/fpu: Rename copy_fpregs_to_fpstate() to save_fpregs_to_fpstate()
A copy is guaranteed to leave the source intact, which is not the case when
FNSAVE is used as that reinitilizes the registers.
Save does not make such guarantees and it matches what this is about,
i.e. to save the state for a later restore.
Rename it to save_fpregs_to_fpstate().
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20210623121454.508853062@linutronix.de
Diffstat (limited to 'arch/x86/include/asm/fpu/internal.h')
| -rw-r--r-- | arch/x86/include/asm/fpu/internal.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/include/asm/fpu/internal.h b/arch/x86/include/asm/fpu/internal.h index cd88233f1057..559dd3018fd4 100644 --- a/arch/x86/include/asm/fpu/internal.h +++ b/arch/x86/include/asm/fpu/internal.h @@ -375,7 +375,7 @@ static inline int os_xrstor_safe(struct xregs_state *xstate, u64 mask) return err; } -extern int copy_fpregs_to_fpstate(struct fpu *fpu); +extern int save_fpregs_to_fpstate(struct fpu *fpu); static inline void __copy_kernel_to_fpregs(union fpregs_state *fpstate, u64 mask) { @@ -507,7 +507,7 @@ static inline void __fpregs_load_activate(void) static inline void switch_fpu_prepare(struct fpu *old_fpu, int cpu) { if (static_cpu_has(X86_FEATURE_FPU) && !(current->flags & PF_KTHREAD)) { - if (!copy_fpregs_to_fpstate(old_fpu)) + if (!save_fpregs_to_fpstate(old_fpu)) old_fpu->last_cpu = -1; else old_fpu->last_cpu = cpu; |