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x86/fpu: Rename fpu_reset_fpregs() to fpu_reset_fpstate_regs()

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The original function name came from an overly compressed form of
'fpstate_regs' by commit:

    e61d6310a0 ("x86/fpu: Reset permission and fpstate on exec()")

However, the term 'fpregs' typically refers to physical FPU registers. In
contrast, this function copies the init values to fpu->fpstate->regs, not
hardware registers.

Rename the function to better reflect what it actually does.

No functional change.

Signed-off-by: Chang S. Bae <chang.seok.bae@intel.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Link: https://lore.kernel.org/r/20250416021720.12305-11-chang.seok.bae@intel.com
This commit is contained in:
Chang S. Bae 2025-04-15 19:17:00 -07:00 committed by Ingo Molnar
parent 70fe4a0266
commit de8304c319
1 changed files with 3 additions and 3 deletions
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6
arch/x86/kernel/fpu/core.c
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@ -733,7 +733,7 @@ static inline void restore_fpregs_from_init_fpstate(u64 features_mask)
/*
* Reset current->fpu memory state to the init values.
*/
static void fpu_reset_fpregs(void)
static void fpu_reset_fpstate_regs(void)
{
struct fpu *fpu = x86_task_fpu(current);
@ -768,7 +768,7 @@ void fpu__clear_user_states(struct fpu *fpu)
fpregs_lock();
if (!cpu_feature_enabled(X86_FEATURE_FPU)) {
fpu_reset_fpregs();
fpu_reset_fpstate_regs();
fpregs_unlock();
return;
}
@ -798,7 +798,7 @@ void fpu__clear_user_states(struct fpu *fpu)
void fpu_flush_thread(void)
{
fpstate_reset(x86_task_fpu(current));
fpu_reset_fpregs();
fpu_reset_fpstate_regs();
}
/*
* Load FPU context before returning to userspace.