mm/memblock.c: move memblock_{add,reserve}_region into memblock_{add,reserve}

memblock_add_region() and memblock_reserve_region() do nothing specific
before the call of memblock_add_range(), only print debug output.

We can do the same in memblock_add() and memblock_reserve() since both
memblock_add_region() and memblock_reserve_region() are not used by
anybody outside of memblock.c and memblock_{add,reserve}() have the same
set of flags and nids.

Since memblock_add_region() and memblock_reserve_region() will be
inlined, there will not be functional changes, but will improve code
readability a little.

Signed-off-by: Alexander Kuleshov <kuleshovmail@gmail.com>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Tang Chen <tangchen@cn.fujitsu.com>
Cc: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

mm/memblock.c

@@ -606,22 +606,14 @@ int __init_memblock memblock_add_node(phys_addr_t base, phys_addr_t size,
 	return memblock_add_range(&memblock.memory, base, size, nid, 0);
 }
 
-static int __init_memblock memblock_add_region(phys_addr_t base,
-						phys_addr_t size,
-						int nid,
-						unsigned long flags)
+int __init_memblock memblock_add(phys_addr_t base, phys_addr_t size)
 {
 	memblock_dbg("memblock_add: [%#016llx-%#016llx] flags %#02lx %pF\n",
 		     (unsigned long long)base,
 		     (unsigned long long)base + size - 1,
-		     flags, (void *)_RET_IP_);
+		     0UL, (void *)_RET_IP_);
 
-	return memblock_add_range(&memblock.memory, base, size, nid, flags);
-}
-
-int __init_memblock memblock_add(phys_addr_t base, phys_addr_t size)
-{
-	return memblock_add_region(base, size, MAX_NUMNODES, 0);
+	return memblock_add_range(&memblock.memory, base, size, MAX_NUMNODES, 0);
 }
 
 /**
@@ -732,22 +724,14 @@ int __init_memblock memblock_free(phys_addr_t base, phys_addr_t size)
 	return memblock_remove_range(&memblock.reserved, base, size);
 }
 
-static int __init_memblock memblock_reserve_region(phys_addr_t base,
-						   phys_addr_t size,
-						   int nid,
-						   unsigned long flags)
+int __init_memblock memblock_reserve(phys_addr_t base, phys_addr_t size)
 {
 	memblock_dbg("memblock_reserve: [%#016llx-%#016llx] flags %#02lx %pF\n",
 		     (unsigned long long)base,
 		     (unsigned long long)base + size - 1,
-		     flags, (void *)_RET_IP_);
+		     0UL, (void *)_RET_IP_);
 
-	return memblock_add_range(&memblock.reserved, base, size, nid, flags);
-}
-
-int __init_memblock memblock_reserve(phys_addr_t base, phys_addr_t size)
-{
-	return memblock_reserve_region(base, size, MAX_NUMNODES, 0);
+	return memblock_add_range(&memblock.reserved, base, size, MAX_NUMNODES, 0);
 }
 
 /**