[PATCH v2 2/4] x86/acpi/suspend: Remove segment reloads on resume

Brian Gerst posted 4 patches 4 days, 16 hours ago
[PATCH v2 2/4] x86/acpi/suspend: Remove segment reloads on resume
Posted by Brian Gerst 4 days, 16 hours ago
common_startup_64() has set the segments to usable values already, and
they will be restored later in restore_processor_state().  Remove the
redundant segment loads in wakeup_long64()..

Signed-off-by: Brian Gerst <brgerst@gmail.com>
---
 arch/x86/kernel/acpi/wakeup_64.S | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/arch/x86/kernel/acpi/wakeup_64.S b/arch/x86/kernel/acpi/wakeup_64.S
index 3d56610f0108..099401ef2ea4 100644
--- a/arch/x86/kernel/acpi/wakeup_64.S
+++ b/arch/x86/kernel/acpi/wakeup_64.S
@@ -28,12 +28,6 @@ SYM_FUNC_START(wakeup_long64)
 1:
 	jmp 1b
 2:
-	movw	$__KERNEL_DS, %ax
-	movw	%ax, %ss	
-	movw	%ax, %ds
-	movw	%ax, %es
-	movw	%ax, %fs
-	movw	%ax, %gs
 	movq	saved_rsp(%rip), %rsp
 
 	movq	saved_rbx(%rip), %rbx
-- 
2.52.0