x86/mm/32: Remove unused node_memmap_size_bytes() & CONFIG_NEED_NODE_MEMMAP_SIZE logic

node_memmap_size_bytes() has been unused since the v3.9 kernel, so remove it.

Signed-off-by: David Rientjes <rientjes@google.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Laura Abbott <labbott@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-mm@kvack.org
Fixes: f03574f2d5b2 ("x86-32, mm: Rip out x86_32 NUMA remapping code")
Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1803262325540.256524@chino.kir.corp.google.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 0 insertions, 22 deletions

diff --git a/mm/sparse.c b/mm/sparse.c
index 7af5e7a92528..79b26f98d793 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -236,28 +236,6 @@ void __init memory_present(int nid, unsigned long start, unsigned long end)
 }
 
 /*
- * Only used by the i386 NUMA architecures, but relatively
- * generic code.
- */
-unsigned long __init node_memmap_size_bytes(int nid, unsigned long start_pfn,
-                                                     unsigned long end_pfn)
-{
-        unsigned long pfn;
-        unsigned long nr_pages = 0;
-
-        mminit_validate_memmodel_limits(&start_pfn, &end_pfn);
-        for (pfn = start_pfn; pfn < end_pfn; pfn += PAGES_PER_SECTION) {
-                if (nid != early_pfn_to_nid(pfn))
-                        continue;
-
-                if (pfn_present(pfn))
-                        nr_pages += PAGES_PER_SECTION;
-        }
-
-        return nr_pages * sizeof(struct page);
-}
-
-/*
  * Subtle, we encode the real pfn into the mem_map such that
  * the identity pfn - section_mem_map will return the actual
  * physical page frame number.