x86, asm, cleanup: Replace open-coded control register values with sy…

…mbolic Clean up an unnecessary open-coded control register values. Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Link: http://lkml.kernel.org/n/tip-um7za1nzf6brb17o0h4om6e3@git.kernel.org
git-mirror · Jun 25, 2013 · a3d7b7d · a3d7b7d
1 parent d1fbefc
commit a3d7b7d
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Showing 3 changed files with 3 additions and 3 deletions.
diff --git a/arch/x86/kernel/cpu/mtrr/cyrix.c b/arch/x86/kernel/cpu/mtrr/cyrix.c
@@ -167,7 +167,7 @@ static void post_set(void)
 	setCx86(CX86_CCR3, ccr3);
 
 	/* Enable caches */
-	write_cr0(read_cr0() & 0xbfffffff);
+	write_cr0(read_cr0() & ~X86_CR0_CD);
 
 	/* Restore value of CR4 */
 	if (cpu_has_pge)

diff --git a/arch/x86/kernel/cpu/mtrr/generic.c b/arch/x86/kernel/cpu/mtrr/generic.c
@@ -701,7 +701,7 @@ static void post_set(void) __releases(set_atomicity_lock)
 	mtrr_wrmsr(MSR_MTRRdefType, deftype_lo, deftype_hi);
 
 	/* Enable caches */
-	write_cr0(read_cr0() & 0xbfffffff);
+	write_cr0(read_cr0() & ~X86_CR0_CD);
 
 	/* Restore value of CR4 */
 	if (cpu_has_pge)

diff --git a/arch/x86/kernel/relocate_kernel_32.S b/arch/x86/kernel/relocate_kernel_32.S
@@ -186,7 +186,7 @@ identity_mapped:
 	movl	CP_PA_PGD(%ebx), %eax
 	movl	%eax, %cr3
 	movl	%cr0, %eax
-	orl	$(1<<31), %eax
+	orl	$X86_CR0_PG, %eax
 	movl	%eax, %cr0
 	lea	PAGE_SIZE(%edi), %esp
 	movl	%edi, %eax