x86, NUMA: Drop @start/last_pfn from initmem_init()

initmem_init() extensively accesses and modifies global data
structures and the parameters aren't even followed depending on which
path is being used.  Drop @start/last_pfn and let it deal with
@max_pfn directly.  This is in preparation for further NUMA init
cleanups.

- v2: x86-32 initmem_init() weren't updated breaking 32bit builds.
  Fixed.  Found by Yinghai.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: Shaohui Zheng <shaohui.zheng@intel.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: H. Peter Anvin <hpa@linux.intel.com>

1 files changed, 2 insertions, 3 deletions

diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 194f2732ab77..04cc027e5437 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -603,10 +603,9 @@ kernel_physical_mapping_init(unsigned long start,
 }
 
 #ifndef CONFIG_NUMA
-void __init initmem_init(unsigned long start_pfn, unsigned long end_pfn,
-				int acpi, int k8)
+void __init initmem_init(int acpi, int k8)
 {
-	memblock_x86_register_active_regions(0, start_pfn, end_pfn);
+	memblock_x86_register_active_regions(0, 0, max_pfn);
 	init_memory_mapping_high();
 }
 #endif