x86/Sandy Bridge: mark arrays in __init functions as __initconst

commit 91c90db1aa92a50fa1d7f289502b49ddb46a90d3 upstream.

commit ab3cd8670e0b3fcde7f029e1503ed3c5138e9571 upstream.

Mark static arrays as __initconst so they get removed when the init
sections are flushed.

Reported-by: Mathias Krause <minipli@googlemail.com>
Link: http://lkml.kernel.org/r/75F4BEE6-CB0E-4426-B40B-697451677738@googlemail.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Cc: Rui Xiang <rui.xiang@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index dc29333..436aa6d 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -626,7 +626,7 @@
 #ifdef CONFIG_PCI
 	int i;
 	u16 vendor, devid;
-	static const u16 snb_ids[] = {
+	static const __initconst u16 snb_ids[] = {
 		0x0102,
 		0x0112,
 		0x0122,
@@ -659,7 +659,7 @@
  */
 static void __init trim_snb_memory(void)
 {
-	static const unsigned long bad_pages[] = {
+	static const __initconst unsigned long bad_pages[] = {
 		0x20050000,
 		0x20110000,
 		0x20130000,