x86: relocate_kernel_32.S - clear register in more elegant way

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-03-23 00:00:06 +03:00 · 2008-03-23 00:00:06 +03:00 · 4039ae5380
commit 4039ae5380
parent 15a601eb9c
1 changed files with 1 additions and 2 deletions
--- a/arch/x86/kernel/relocate_kernel_32.S
+++ b/arch/x86/kernel/relocate_kernel_32.S
@ -185,8 +185,7 @@ identity_mapped:
 	/* Set cr4 to a known state:
 	 * Setting everything to zero seems safe.
 	 */
-	movl	%cr4, %eax
-	andl	$0, %eax
+	xorl	%eax, %eax
 	movl	%eax, %cr4

 	jmp 1f