[PATCH 4.17 03/21] x86/platform/UV: Mark memblock related init code and data correctly

4.17-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Dou Liyang <redacted>

commit 24cfd8ca1d28331b9dad3b88d1958c976b2cfab6 upstream.

parse_mem_block_size() and mem_block_size are only used during init. Mark
them accordingly.

Fixes: d7609f4210cb ("x86/platform/UV: Add kernel parameter to set memory block size")
Signed-off-by: Dou Liyang <redacted>
Signed-off-by: Thomas Gleixner <redacted>
Cc: hpa@zytor.com
Cc: Mike Travis <redacted>
Cc: Andrew Banman <redacted>
Link: https://lkml.kernel.org/r/20180730075947.23023-1-douly.fnst@cn.fujitsu.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/x86/kernel/apic/x2apic_uv_x.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c

@@ -394,10 +394,10 @@ extern int uv_hub_info_version(void)
 EXPORT_SYMBOL(uv_hub_info_version);
 
 /* Default UV memory block size is 2GB */
-static unsigned long mem_block_size = (2UL << 30);
+static unsigned long mem_block_size __initdata = (2UL << 30);
 
 /* Kernel parameter to specify UV mem block size */
-static int parse_mem_block_size(char *ptr)
+static int __init parse_mem_block_size(char *ptr)
 {
 	unsigned long size = memparse(ptr, NULL);