[PATCH v3 05/11] drivers/base/memory: Pass a block_id to init_memory_block()

[David Hildenbrand]

We'll rework hotplug_memory_register() shortly, so it no longer consumes
pass a section.

Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org>
Cc: "Rafael J. Wysocki" <raf...@kernel.org>
Signed-off-by: David Hildenbrand <da...@redhat.com>
---
 drivers/base/memory.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/drivers/base/memory.c b/drivers/base/memory.c
index f180427e48f4..f914fa6fe350 100644
--- a/drivers/base/memory.c
+++ b/drivers/base/memory.c
@@ -651,21 +651,18 @@ int register_memory(struct memory_block *memory)
        return ret;
 }
 
-static int init_memory_block(struct memory_block **memory,
-                            struct mem_section *section, unsigned long state)
+static int init_memory_block(struct memory_block **memory, int block_id,
+                            unsigned long state)
 {
        struct memory_block *mem;
        unsigned long start_pfn;
-       int scn_nr;
        int ret = 0;
 
        mem = kzalloc(sizeof(*mem), GFP_KERNEL);
        if (!mem)
                return -ENOMEM;
 
-       scn_nr = __section_nr(section);
-       mem->start_section_nr =
-                       base_memory_block_id(scn_nr) * sections_per_block;
+       mem->start_section_nr = block_id * sections_per_block;
        mem->end_section_nr = mem->start_section_nr + sections_per_block - 1;
        mem->state = state;
        start_pfn = section_nr_to_pfn(mem->start_section_nr);
@@ -694,7 +691,8 @@ static int add_memory_block(int base_section_nr)
 
        if (section_count == 0)
                return 0;
-       ret = init_memory_block(&mem, __nr_to_section(section_nr), MEM_ONLINE);
+       ret = init_memory_block(&mem, base_memory_block_id(base_section_nr),
+                               MEM_ONLINE);
        if (ret)
                return ret;
        mem->section_count = section_count;
@@ -707,6 +705,7 @@ static int add_memory_block(int base_section_nr)
  */
 int hotplug_memory_register(int nid, struct mem_section *section)
 {
+       int block_id = base_memory_block_id(__section_nr(section));
        int ret = 0;
        struct memory_block *mem;
 
@@ -717,7 +716,7 @@ int hotplug_memory_register(int nid, struct mem_section 
*section)
                mem->section_count++;
                put_device(&mem->dev);
        } else {
-               ret = init_memory_block(&mem, section, MEM_OFFLINE);
+               ret = init_memory_block(&mem, block_id, MEM_OFFLINE);
                if (ret)
                        goto out;
                mem->section_count++;
-- 
2.20.1