x86: Use __memblock_alloc_base() in early_reserve_e820()

early_reserve_e820() implements its own ad-hoc early allocator using
memblock_x86_find_in_range_size().  Use __memblock_alloc_base()
instead and remove the unnecessary @startt parameter (it's top-down
allocation anyway).

Signed-off-by: Tejun Heo <tj@kernel.org>
Link: http://lkml.kernel.org/r/1310462166-31469-6-git-send-email-tj@kernel.org
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

1 files changed, 2 insertions, 4 deletions

diff --git a/arch/x86/kernel/mpparse.c b/arch/x86/kernel/mpparse.c
index 9103b89c145a..8faeaa0ed2cc 100644
--- a/arch/x86/kernel/mpparse.c
+++ b/arch/x86/kernel/mpparse.c
@@ -836,10 +836,8 @@ early_param("alloc_mptable", parse_alloc_mptable_opt);
 
 void __init early_reserve_e820_mpc_new(void)
 {
-        if (enable_update_mptable && alloc_mptable) {
-                u64 startt = 0;
-                mpc_new_phys = early_reserve_e820(startt, mpc_new_length, 4);
-        }
+        if (enable_update_mptable && alloc_mptable)
+                mpc_new_phys = early_reserve_e820(mpc_new_length, 4);
 }
 
 static int __init update_mp_table(void)