Commit b76411b1 authored by Thomas Gleixner's avatar Thomas Gleixner Committed by Borislav Petkov
Browse files

x86/fpu: Rename initstate copy functions 



Again this not a copy. It's restoring register state from kernel memory.

Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Signed-off-by: default avatarBorislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20210623121454.816581630@linutronix.de
parent 1c61fada

arch/x86/kernel/fpu/core.c

+3 −3
Original line number Diff line number Diff line
@@ -303,7 +303,7 @@ void fpu__drop(struct fpu *fpu) 
 * Clear FPU registers by setting them up from the init fpstate.

 * Caller must do fpregs_[un]lock() around it.

 */

static inline void copy_init_fpstate_to_fpregs(u64 features_mask)

static inline void restore_fpregs_from_init_fpstate(u64 features_mask)

{

	if (use_xsave())

		os_xrstor(&init_fpstate.xsave, features_mask);
@@ -338,9 +338,9 @@ static void fpu__clear(struct fpu *fpu, bool user_only) 
		if (!fpregs_state_valid(fpu, smp_processor_id()) &&

		    xfeatures_mask_supervisor())

			os_xrstor(&fpu->state.xsave, xfeatures_mask_supervisor());

		copy_init_fpstate_to_fpregs(xfeatures_mask_user());

		restore_fpregs_from_init_fpstate(xfeatures_mask_user());

	} else {

		copy_init_fpstate_to_fpregs(xfeatures_mask_all);

		restore_fpregs_from_init_fpstate(xfeatures_mask_all);

	}



	fpregs_mark_activate();